UNITED STATES FILTER CORP
S-4, 1997-11-07
REFRIGERATION & SERVICE INDUSTRY MACHINERY
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<PAGE>
 
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 6, 1997
 
                                                     REGISTRATION NO. 333-
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                               ---------------
 
                                   FORM S-4
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
 
                               ---------------
 
                       UNITED STATES FILTER CORPORATION
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
        DELAWARE                     3589                   33-0266015
                         (PRIMARY STANDARD INDUSTRIAL    (I.R.S. EMPLOYER
     (STATE OR OTHER      CLASSIFICATION CODE NUMBER)   IDENTIFICATION NO.)
     JURISDICTION OF
    INCORPORATION OR
      ORGANIZATION)
 
                              40-004 COOK STREET
                         PALM DESERT, CALIFORNIA 92211
                                (760) 340-0098
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
 
                               ---------------
 
                              DAMIAN C. GEORGINO
        SENIOR VICE PRESIDENT, GENERAL COUNSEL AND CORPORATE SECRETARY
                       UNITED STATES FILTER CORPORATION
                              40-004 COOK STREET
                         PALM DESERT, CALIFORNIA 92211
                                (760) 340-0098
(NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)
 
                               ---------------
 
                                   COPY TO:
                               JANICE C. HARTMAN
                          KIRKPATRICK & LOCKHART LLP
                             1500 OLIVER BUILDING
                        PITTSBURGH, PENNSYLVANIA 15222
                                (412) 355-6500
 
  APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC: The effective
date of the merger of a wholly owned subsidiary of the registrant with and
into Puro Water Group, Inc. ("Puro") as described in the Proxy
Statement/Prospectus.
 
  If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance
with General Instruction G, check the following box. [_]
 
                               ---------------
 
                        CALCULATION OF REGISTRATION FEE
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                  PROPOSED           PROPOSED         AMOUNT OF
  TITLE OF EACH CLASS OF       MAXIMUM AMOUNT    MAXIMUM OFFERING     AGGREGATE
SECURITIES TO BE REGISTERED  TO BE REGISTERED(1) PRICE PER SHARE  OFFERING PRICE(2) REGISTRATION FEE
- ----------------------------------------------------------------------------------------------------
<S>                          <C>                 <C>              <C>               <C>
 Common stock, par value
  $.01 per share........       830,692 shares        $6.6875       $26,498,362.75        $8,030
</TABLE>
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
(1) Represents the number of shares issuable to holders of Common Stock, par
    value $.0063 per share, of Puro pursuant to the Agreement and Plan of
    Merger described in this registration statement (the "Merger Agreement"),
    assuming the "U.S. Filter Average Market Price" of a share of Common Stock
    of the registrant as defined in the Proxy Statement/Prospectus is
    $34.34375, which is the average of the high and low sales prices of the
    registrant's Common Stock on November 5, 1997.
(2) Estimated solely for the purpose of calculating the registration fee;
    computed in accordance with Rule 457(f)(1) by multiplying the average of
    the high and low sales prices for the Common Stock of Puro on the American
    Stock Exchange on November 5, 1997 ($6.6875) by the number of shares of
    Puro Common Stock outstanding on October 15, 1997 and issuable pursuant to
    outstanding options and other rights to acquire such Common Stock as of
    such date (3,962,372 shares).
 
                               ---------------
 
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THIS REGISTRATION
STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                      [PURO WATER GROUP, INC. LETTERHEAD]
 
                               NOVEMBER  , 1997
 
Dear Stockholder:
 
  You are cordially invited to attend a Special Meeting of Stockholders of
Puro Water Group, Inc. to be held on Wednesday, December 10, 1997 at Puro's
headquarters at 56-24, 58th Street, Maspeth, New York, commencing at 10:00
a.m., local time.
 
  At the Special Meeting, you will be asked to approve and adopt an Agreement
and Plan of Merger and the transactions contemplated thereby providing for the
acquisition of Puro Water Group, Inc. by United States Filter Corporation. As
a result of the merger, each outstanding share of Puro Common Stock will be
converted into the right to receive a fraction of a share of United States
Filter Common Stock determined by dividing $7.20 by the average market price
of the United States Filter Common Stock during the 10 consecutive trading
days beginning on the 16th trading day prior to the Puro Special Meeting of
Stockholders. Cash will be paid in lieu of fractional shares. United States
Filter Corporation's Common Stock is listed on the New York Stock Exchange and
traded under the symbol "USF."
 
  The Board of Directors has unanimously determined that the transaction is in
the best interests of Puro and its stockholders and recommends that you vote
FOR the proposal to approve and adopt the Agreement and Plan of Merger and the
transactions contemplated thereby.
 
  If the Puro stockholders approve the Agreement and Plan of Merger, your
investment in Puro will become an investment in United States Filter
Corporation, a leading global provider of industrial and municipal water and
wastewater treatment systems, products and services, with an installed base it
believes is the largest worldwide. The Board of Directors of Puro believes
that the proposed transaction is an opportunity for Puro's stockholders to
participate in a combined company that has greater business and financial
resources and long-term growth potential than Puro has absent the transaction.
 
  The accompanying Proxy Statement/Prospectus describes the proposed
transaction more fully, and you are urged to give it your careful attention.
 
  It is important that your shares be represented at the Special Meeting
whether or not you are personally able to attend. In order to insure that you
will be represented, we ask you to complete and return the enclosed proxy card
promptly. A postage-paid return envelope is enclosed for your convenience.
 
                                                  Sincerely,
 
                                                  Scott Levy
                                                  Chief Executive Officer
<PAGE>
 
[LOGO]
 
                            PURO WATER GROUP, INC.
                               56-24 58TH STREET
                            MASPETH, NEW YORK 11378
 
                               ----------------
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                        TO BE HELD ON DECEMBER 10, 1997
 
  NOTICE IS HEREBY GIVEN that a Special Meeting of Stockholders of Puro Water
Group, Inc., a Delaware corporation ("Puro"), will be held on Wednesday,
December 10, 1997, at Puro's headquarters at 56-24 58th Street, Maspeth, New
York, commencing at 10:00 a.m., local time, to consider and vote upon the
following matter described in the accompanying Proxy Statement/Prospectus:
 
    Approval and adoption of the Agreement and Plan of Merger, dated as
  of October 8, 1997, (the "Merger Agreement"), among United States
  Filter Corporation, a Delaware corporation ("U.S. Filter"), USF/PW
  Acquisition Corporation, a newly formed Delaware corporation and a
  wholly owned subsidiary of U.S. Filter ("Sub"), and Puro, and the
  transactions contemplated thereby, including the merger of Sub with
  and into Puro, pursuant to which, among other things, Puro will become
  a wholly owned subsidiary of U.S. Filter, and each outstanding share
  of Common Stock of Puro will be converted into the right to receive a
  fraction of a share of U.S. Filter Common Stock determined by dividing
  $7.20 by the average market price of the U.S. Filter Common Stock
  during the 10 consecutive trading days beginning on the 16th trading
  day prior to the Puro Special Meeting of Stockholders. A copy of the
  Merger Agreement is attached as Annex A to the accompanying Proxy
  Statement/Prospectus.
 
  Only holders of record of Puro Common Stock at the close of business on
November 5, 1997 will be entitled to notice of, and to vote at, the Special
Meeting and any adjournment or postponement thereof. A list of such
stockholders will be open to examination by any stockholder at the Special
Meeting and for a period of ten days prior to the date of the Special Meeting
during ordinary business hours at the principal executive offices of Puro, 56-
24 58th Street, Maspeth, New York.
 
  Whether or not you plan to attend the Special Meeting, please complete,
date, sign and return the enclosed proxy card promptly. A return envelope is
enclosed for your convenience and requires no postage for mailing in the
United States.
 
                                          By Order of the Board of Directors,
 
                                          Jack C. West
                                          Secretary
 
Maspeth, New York
November   , 1997
 
                            YOUR VOTE IS IMPORTANT
 
TO VOTE YOUR SHARES PLEASE COMPLETE, DATE AND SIGN THE ENCLOSED PROXY CARD AND
               MAIL IT PROMPTLY IN THE ENCLOSED RETURN ENVELOPE.
<PAGE>
 
                                PROXY STATEMENT
                                      OF
                            PURO WATER GROUP, INC.
 
                               ----------------
 
                                  PROSPECTUS
                                      OF
                       UNITED STATES FILTER CORPORATION
 
  This Proxy Statement/Prospectus relates to the proposed merger (the
"Merger") of USF/PW Acquisition Corporation, a Delaware corporation ("Sub")
and a wholly owned subsidiary of United States Filter Corporation, a Delaware
corporation ("U.S. Filter"), with and into Puro Water Group, Inc., a Delaware
corporation ("Puro"), pursuant to which Puro will become a wholly owned
subsidiary of U.S. Filter. As a result of the Merger, each issued and
outstanding share of Common Stock of Puro, par value $.0063 per share (the
"Puro Common Stock") (other than any such shares issued and held in the
treasury of Puro), will be converted into the right to receive a fraction of a
share of Common Stock of U.S. Filter, par value $.01 per share (the "U.S.
Filter Common Stock") determined by dividing $7.20 (the "Puro Per Share
Purchase Price") by the average market price (calculated as indicated below)
of the U.S. Filter Common Stock during the 10 consecutive trading days
beginning on the 16th trading day prior to the Puro Special Meeting (as
defined) (the "U.S. Filter Average Market Price"). Upon consummation of the
Merger, Puro will become a wholly owned subsidiary of U.S. Filter. The "U.S.
Filter Average Market Price" will be calculated by (i) averaging the high and
low per share sale prices on the New York Stock Exchange Composite Tape for
each trading day during such period on which there were any trades in USF
Common Stock, (ii) adding such daily averages together, and (iii) dividing the
sum by 10 (reduced by the number of such trading days during which there were
no such trades).
 
  U.S. Filter Common Stock is listed on the New York Stock Exchange and traded
under the symbol "USF," and Puro Common Stock is listed on the American Stock
Exchange and traded under the symbol "HHO." The last reported sale prices of
the U.S. Filter Common Stock and Puro Common Stock on November 5, 1997 were
$34.9375 per share and $6.75 per share, respectively. There can be no
assurance as to the market prices of U.S. Filter Common Stock or Puro Common
Stock. Puro stockholders are urged to obtain current market prices.
 
  This document constitutes both a prospectus of U.S. Filter and a proxy
statement of Puro relating to the solicitation of proxies for use at a Special
Meeting of Stockholders of Puro (the "Puro Special Meeting") scheduled to be
held at 10:00 a.m. on Wednesday, December 10, 1997.
 
  REFERENCE IS MADE TO "RISK FACTORS" BEGINNING ON PAGE 12, WHICH CONTAINS
MATERIAL INFORMATION THAT PURO STOCKHOLDERS SHOULD CONSIDER IN CONNECTION WITH
THE PROPOSED TRANSACTIONS DISCUSSED HEREIN AND THE SECURITIES BEING OFFERED
HEREBY.
 
  THIS PROXY STATEMENT/PROSPECTUS CONTAINS CERTAIN FORWARD LOOKING STATEMENTS
WITH RESPECT TO, AMONG OTHER THINGS, THE FINANCIAL CONDITION, RESULTS OF
OPERATIONS, BUSINESS AND PROSPECTS OF U.S. FILTER FOLLOWING CONSUMMATION OF
THE MERGER, INCLUDING STATEMENTS RELATING TO ANTICIPATED BENEFITS OF THE
MERGER. THESE FORWARD LOOKING STATEMENTS INVOLVE CERTAIN RISKS AND
UNCERTAINTIES. FACTORS THAT MAY CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM
THOSE CONTEMPLATED BY SUCH FORWARD LOOKING STATEMENTS INCLUDE, AMONG OTHERS,
THOSE DESCRIBED IN "RISK FACTORS."
 
                               ----------------
 
THE  SECURITIES TO BE ISSUED PURSUANT TO THIS PROXY STATEMENT/PROSPECTUS  HAVE
 NOT BEEN  APPROVED OR DISAPPROVED BY THE SECURITIES AND  EXCHANGE COMMISSION
  OR  ANY STATE SECURITIES  COMMISSION NOR HAS  THE COMMISSION OR  ANY STATE
   SECURITIES  COMMISSION PASSED  UPON  THE ACCURACY  OR  ADEQUACY OF  THIS
    PROXY STATEMENT/PROSPECTUS.  ANY REPRESENTATION  TO THE CONTRARY  IS A
     CRIMINAL OFFENSE.
 
                               ----------------
<PAGE>
 
  This Proxy Statement/Prospectus and the accompanying proxy cards are first
being mailed to stockholders of Puro on or about November   , 1997.
 
  The date of this Proxy Statement/Prospectus is November   , 1997.
 
  Except as otherwise specified, all information in this Proxy
Statement/Prospectus has been adjusted to reflect 3-for-2 splits of the U.S.
Filter Common Stock effected on each of December 5, 1994 and July 15, 1996.
 
  All information contained in this Proxy Statement/Prospectus relating to
U.S. Filter has been supplied by U.S. Filter, and all information contained in
this Proxy Statement/Prospectus relating to Puro has been supplied by Puro.
 
                               ----------------
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROXY STATEMENT/PROSPECTUS
IN CONNECTION WITH THE SOLICITATION OF PROXIES OR THE OFFERING OF SECURITIES
MADE HEREBY AND, IF GIVEN OR MADE, ANY SUCH INFORMATION OR REPRESENTATION MUST
NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY U.S. FILTER, PURO OR ANY OTHER
PERSON. THIS PROXY STATEMENT/PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL,
OR A SOLICITATION OF AN OFFER TO BUY, ANY SECURITIES, OR THE SOLICITATION OF A
PROXY, IN ANY JURISDICTION TO OR FROM ANY PERSON TO WHOM IT IS NOT LAWFUL TO
MAKE ANY SUCH OFFER OR SOLICITATION IN SUCH JURISDICTION. NEITHER THE DELIVERY
OF THIS PROXY STATEMENT/PROSPECTUS NOR ANY DISTRIBUTION OF SECURITIES
HEREUNDER SHALL UNDER ANY CIRCUMSTANCES CREATE ANY IMPLICATION THAT THERE HAS
BEEN NO CHANGE IN THE AFFAIRS OF U.S. FILTER OR PURO SINCE THE DATE HEREOF OR
THAT THE INFORMATION HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO ITS DATE.
 
                               ----------------
 
                             AVAILABLE INFORMATION
 
  U.S. Filter and Puro are each subject to the informational requirements of
the United States Securities Exchange Act of 1934, as amended (the "Exchange
Act"), and in accordance therewith each files periodic reports, proxy
solicitation materials and other information with the United States Securities
and Exchange Commission (the "Commission"). Such reports, proxy solicitation
materials and other information filed by U.S. Filter and by Puro with the
Commission can be inspected and copied at the public reference facilities
maintained by the Commission at Judiciary Plaza, 450 Fifth Street, N.W.,
Washington, D.C. 20549, and at the Commission's Regional Offices at 7 World
Trade Center, Suite 1300, New York, New York 10048, and Citicorp Center, 500
West Madison Street, Suite 1400, Chicago, Illinois 60661-2511. Copies of such
material also can be obtained at prescribed rates from the Public Reference
Section of the Commission, 450 Fifth Street, N.W., Washington, D.C. 20549. The
Commission maintains a Web site that contains reports, proxy and information
statements and other information regarding registrants, such as U.S. Filter
and Puro, that file electronically with the Commission. Such reports, proxy
and information statements and other information may be found on the
Commission's site address, http://www.sec.gov. The periodic reports, proxy
statements and other information filed by U.S. Filter and Puro with the
Commission may also be inspected at the offices of the New York Stock
Exchange, 20 Broad Street, New York, New York 10005 and the American Stock
Exchange, 86 Trinity Place, New York, New York 10006-1881, respectively.
 
  This Proxy Statement/Prospectus is part of a Registration Statement on Form
S-4 (together with all amendments and exhibits thereto, the "Registration
Statement") that has been filed by U.S. Filter under the United States
Securities Act of 1933, as amended (the "Securities Act"), with respect to the
securities to be issued pursuant to the Merger. As permitted by the rules and
regulations of the Commission, this Proxy Statement/Prospectus does not
contain all of the information set forth in the Registration Statement. Such
additional information may be obtained from the Commission's principal office
in Washington, D.C. Statements contained in this Proxy Statement/Prospectus or
in any document incorporated by reference in this Proxy Statement/Prospectus
as to the contents of any contract or other document referred to herein or
therein are not necessarily complete. In each instance, reference is hereby
made to the copy of such contract or other document
 
                                       2
<PAGE>
 
filed as an exhibit to the Registration Statement or such other document, and
each such statement is qualified in all respects by such reference.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
  The following documents filed with the Commission by U.S. Filter (File No.
1-10728) pursuant to the Exchange Act are incorporated by reference in this
Proxy Statement/Prospectus: U.S. Filter's Annual Report on Form 10-K for the
fiscal year ended March 31, 1997; U.S. Filter's Quarterly Report on Form 10-Q
for the quarter ended June 30, 1997 (as amended on Form 10-Q/A dated August
22, 1997); U.S. Filter's Current Reports on Form 8-K dated August 4, 1997,
September 17, 1997 and September 19, 1997; and a description of U.S. Filter
Common Stock contained in U.S. Filter's Registration Statement on Form 8-A, as
the same may be amended.
 
  All documents and reports subsequently filed by U.S. Filter pursuant to
Section 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this
Proxy Statement/Prospectus and prior to the date of the Puro Special Meeting
shall be deemed to be incorporated by reference in this Proxy
Statement/Prospectus and to be part hereof from the dates of filing of such
documents and reports. Any statement contained herein or in a document
incorporated or deemed to be incorporated by reference herein shall be deemed
to be modified or superseded for purposes of this Proxy Statement/Prospectus
to the extent that a statement contained herein or in any subsequently filed
document which is or is deemed to be incorporated by reference herein modifies
or supersedes such statement. Any such statement so modified or superseded
shall not be deemed, except as so modified or superseded, to constitute a part
of this Proxy Statement/Prospectus.
 
  THIS PROXY STATEMENT/PROSPECTUS INCORPORATES DOCUMENTS BY REFERENCE FILED
WITH THE COMMISSION THAT ARE NOT PRESENTED HEREIN OR DELIVERED HEREWITH. SUCH
DOCUMENTS (OTHER THAN EXHIBITS TO SUCH DOCUMENTS UNLESS SUCH EXHIBITS ARE
SPECIFICALLY INCORPORATED BY REFERENCE) ARE AVAILABLE TO ANY PERSON, INCLUDING
ANY BENEFICIAL OWNER, TO WHOM THIS PROXY STATEMENT/PROSPECTUS IS DELIVERED,
UPON WRITTEN OR ORAL REQUEST, WITHOUT CHARGE, DIRECTED TO SENIOR VICE
PRESIDENT, GENERAL COUNSEL AND CORPORATE SECRETARY, UNITED STATES FILTER
CORPORATION, 40-004 COOK STREET, PALM DESERT, CALIFORNIA 92211 (TELEPHONE
(760) 340-0098). IN ORDER TO ENSURE TIMELY DELIVERY OF ANY DOCUMENTS, ANY
REQUEST SHOULD BE MADE BY NOVEMBER   , 1997.
 
                                       3
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>                                                                         <C>
AVAILABLE INFORMATION......................................................   2
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE............................   3
TABLE OF CONTENTS..........................................................   4
SUMMARY....................................................................   5
RISK FACTORS...............................................................  12
THE PURO SPECIAL MEETING...................................................  16
MARKET PRICE AND DIVIDEND DATA.............................................  18
THE MERGER.................................................................  19
 Background of the Merger..................................................  19
 U.S. Filter Reasons for the Merger........................................  19
 Puro Reasons for the Merger; Recommendation of the Puro Board of
  Directors................................................................  19
 Interests of Certain Persons in the Merger................................  21
 Accounting Treatment......................................................  22
 Certain Federal Income Tax Consequences...................................  22
 Regulatory Approvals......................................................  23
 Resale Restrictions.......................................................  24
 No Appraisal Rights.......................................................  24
U.S. FILTER SELECTED CONSOLIDATED FINANCIAL DATA...........................  25
PURO SUMMARY FINANCIAL DATA................................................  28
PURO MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
 AND RESULTS OF OPERATIONS.................................................  30
THE MERGER AGREEMENT.......................................................  36
 The Merger................................................................  36
 Conversion of Puro Common Stock...........................................  36
 Employee and Director Stock Options.......................................  37
 Other Options.............................................................  37
 Underwriters' Warrants....................................................  37
 Convertible Notes.........................................................  37
 Representations and Warranties............................................  38
 Certain Covenants.........................................................  38
 No Solicitation...........................................................  39
 Conditions................................................................  40
 Termination; Termination Fees and Expenses................................  40
 Amendment and Waiver......................................................  41
 The Stockholder Agreements................................................  42
INFORMATION CONCERNING PURO................................................  43
SECURITY OWNERSHIP.........................................................  52
LEGAL MATTERS..............................................................  53
INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS...................................  53
INDEX TO FINANCIAL STATEMENTS.............................................. F-1
ANNEX A--Agreement and Plan of Merger dated as of October 8, 1997 among
         United States Filter Corporation, USF/PW Acquisition Corporation
         and Puro Water Group, Inc......................................... A-1
ANNEX B--Form of Stockholder Agreement..................................... B-1
</TABLE>
 
                                       4
<PAGE>
 
                                    SUMMARY
 
  Following is a summary of certain information contained elsewhere in this
Proxy Statement/Prospectus. Reference is made to, and this summary is qualified
in its entirety by, the more detailed information contained or incorporated by
reference in this Proxy Statement/Prospectus and the Annexes hereto.
Stockholders are urged to read this Proxy Statement/Prospectus and the Annexes
hereto in their entirety. Except as otherwise specified, all information in
this Proxy Statement/Prospectus has been adjusted to reflect the 3-for-2 splits
of the U.S. Filter Common Stock effected on each of December 5, 1994 and July
15, 1996.
 
THE COMPANIES
 
U.S. Filter               U.S. Filter is a leading global provider of
                          industrial and municipal water and wastewater
                          treatment systems, products and services, with an
                          installed base of systems that U.S. Filter believes
                          is one of the largest worldwide. U.S. Filter is also
                          a leading provider of service deionization and
                          outsourced water services, including the operation of
                          water and wastewater treatment systems at customer
                          sites. It is actively involved in the development of
                          privatization initiatives for municipal wastewater
                          treatment facilities in the United States, Mexico and
                          Canada. U.S. Filter sells equipment and provides
                          services to its customers through more than 450
                          locations throughout the world. U.S. Filter also
                          markets a broad line of water distribution and sewer
                          and stormwater equipment and supplies through a
                          network of over 110 distribution centers in the
                          United States. In addition, U.S. Filter sells,
                          installs and services a wide range of water treatment
                          and water-related products for the residential and
                          consumer markets. U.S. Filter's principal executive
                          offices are located at 40-004 Cook Street, Palm
                          Desert, California 92211, and its telephone number is
                          (760) 340-0098. References herein to U.S. Filter
                          refer to United States Filter Corporation and its
                          subsidiaries, unless the context requires otherwise.
 
Puro                      Puro is a leading bottler and distributor of spring
                          and purified drinking water, serving commercial and
                          residential users in the metropolitan New York area.
                          Puro markets its drinking water under the brand names
                          Puro, American Eagle Spring Water, Nature's Best
                          Spring Water and Lectro-Still. Puro also rents and
                          services water coolers, filtration systems, and
                          plumbed-in fountains numbering in excess of 25,000
                          located in businesses, factories, and homes in the
                          metropolitan New York area. Puro's facilities consist
                          of NSF (National Sanitation Foundation) certified
                          bottling plants in East Orange, New Jersey and
                          Commack, Long Island, New York. In addition, Puro is
                          an authorized factory service center for all major
                          water cooler manufacturers and provides warranty
                          repair coverage to many of its competitors. Puro's
                          principal executive offices are located at 56-24 58th
                          Street, Maspeth, New York 11378 and its telephone
                          number is (718) 326-7000.
 
THE PURO SPECIAL
 MEETING
 
Time, Date and Place      The Puro Special Meeting is scheduled to be held on
                          Wednesday, December 10, 1997, at Puro's headquarters
                          at 56-24 58th Street, Maspeth, New York, commencing
                          at 10:00 a.m., local time.
 
                                       5
<PAGE>
 
 
Record Date; Shares
Entitled to Vote          Only holders of record of shares of Puro Common Stock
                          at the close of business on November 5, 1997 are
                          entitled to notice of and to vote at the Puro Special
                          Meeting. As of October 15, 1997, there were 3,476,789
                          shares of Puro Common Stock outstanding, held by
                          approximately 22 holders of record. Each holder of
                          record of shares of Puro Common Stock on the record
                          date is entitled to cast one vote per share on each
                          matter to be acted upon or which may properly come
                          before the Puro Special Meeting.
 
Purpose of the Meeting
                          The purpose of the Puro Special Meeting is to
                          consider and vote upon a proposal to approve and
                          adopt the Agreement and Plan of Merger dated as of
                          October 8, 1997 (the "Merger Agreement"), among U.S.
                          Filter, Sub and Puro, and the transactions
                          contemplated thereby (including the Merger).
 
Vote Required             The approval and adoption of the Merger Agreement and
                          the transactions contemplated thereby (including the
                          Merger) by Puro stockholders will require the
                          affirmative vote of the holders of a majority of all
                          shares of Puro Common Stock entitled to vote thereon.
                          In connection with the Merger Agreement, each of
                          Peter T. Dixon, the Trusts Under Article 16 of the
                          Will of W. Palmer Dixon for the Benefit of Peter T.
                          and Palmer Dixon (the "Dixon Trusts"), Beth Levy,
                          Scott Levy, Jack C. West and Edberg Associates
                          Limited Partnership, entered into an agreement
                          (together, the "Stockholder Agreements") with U.S.
                          Filter pursuant to which each such Puro stockholder
                          agreed, among other things, to vote, and at U.S.
                          Filter's request to grant U.S. Filter an irrevocable
                          proxy to vote, all shares of Puro Common Stock owned
                          by such stockholder (or as to which such stockholder
                          has the exclusive right to vote) in favor of approval
                          and adoption of the Merger Agreement and the
                          transactions contemplated thereby. As of October 15,
                          1997, such stockholders owned or had the sole power
                          to vote an aggregate of 2,139,256 shares, or
                          approximately 62%, of the outstanding Puro Common
                          Stock. See "The Stockholder Agreements." Jack C.
                          West, President and Secretary of Puro, has pledged
                          the 359,505 shares of Puro Common Stock owned
                          beneficially by him to European American Bank ("EAB")
                          in connection with certain indebtedness (the "Pledged
                          Shares"). No other votes (assuming EAB does not
                          exercise any rights of disposition in connection with
                          the Pledged Shares) are needed to approve the Merger
                          Agreement and the transactions contemplated
                          thereunder; however, the Puro Amended and Restated
                          By-Laws ("Puro By-Laws") require the presence of the
                          holders of at least two-thirds of the shares entitled
                          to vote to constitute a quorum for the transaction of
                          business at any meeting of stockholders. Accordingly,
                          the presence of at least 178,604 additional shares of
                          Puro Common Stock is required in order to convene the
                          Special Meeting and permit a vote to be taken with
                          respect to the Merger Agreement.
 
THE MERGER
 
Effects of the Merger
                          In accordance with the terms and conditions set forth
                          in the Merger Agreement, Sub will merge into Puro and
                          Puro will become a wholly
 
                                       6
<PAGE>
 
                          owned subsidiary of U.S. Filter (the time at which
                          the Merger shall occur in accordance with such terms
                          is hereinafter referred to as the "Effective Time").
                          As a result of the Merger, each issued and
                          outstanding share of Puro Common Stock (other than
                          shares issued and held in the treasury of Puro) will
                          be converted into the right to receive a fraction of
                          a share of U.S. Filter Common Stock determined by
                          dividing the Puro Per Share Purchase Price by the
                          U.S. Filter Average Market Price (the "Exchange
                          Ratio"). Fractional shares of U.S. Filter Common
                          Stock will not be issuable in connection with the
                          Merger. Puro stockholders otherwise entitled to a
                          fractional share will be paid the value of such
                          fraction in cash. See "The Merger Agreement--
                          Conversion of Puro Common Stock" and "--Termination;
                          Termination Fees and Expenses."
 
                          At the Effective Time, each outstanding and
                          unexercised option, warrant or other right to acquire
                          Puro Common Stock, including each option outstanding
                          pursuant to the 1996 Stock Option Plan (the "Employee
                          Stock Option Plan") and the 1997 Directors Stock
                          Option Plan (the "Director Stock Option Plan") will
                          be converted into rights to acquire shares of U.S.
                          Filter Common Stock on the basis of the Exchange
                          Ratio.
 
                          On October 9, 1997, the last full trading day prior
                          to the date on which the Merger was publicly
                          announced, the closing sales prices per share of U.S.
                          Filter Common Stock and Puro Common Stock as reported
                          by the New York Stock Exchange and American Stock
                          Exchange were $42.125 and $5.375, respectively. On
                              , 1997, the most recent practicable date prior to
                          the printing of this Proxy Statement/Prospectus, the
                          closing sales prices per share of U.S. Filter Common
                          Stock and Puro Common Stock as reported by the New
                          York Stock Exchange Composite Tape and American Stock
                          Exchange were $    and $   , respectively. See
                          "Market Price and Dividend Data."
 
Reasons for the Merger    U.S. Filter. U.S. Filter believes that the Merger
                          will enable it to enter one of the largest bottled
                          water markets in the United States through one of the
                          leading providers of five-gallon bottled water in
                          that market.
 
                          Puro. Puro believes that the combined company will
                          have greater business and financial resources and
                          long-term growth potential than Puro would have on
                          its own.
 
Recommendation of the     The Board of Directors of Puro has unanimously
 Puro Board of            approved the Merger Agreement and recommends a vote
 Directors                FOR approval and adoption of the Merger Agreement and
                          the transactions contemplated thereby by the
                          stockholders of Puro.
 
                          For a discussion of the factors considered by the
                          Puro Board of Directors in reaching its decision, see
                          "The Merger--Background of the Merger" and "--Puro
                          Reasons for the Merger; Recommendation of the Puro
                          Board of Directors."
 
Interests of Certain      In considering the recommendation of Puro's Board of
Persons in the Merger     Directors, Puro stockholders should be aware that
                          certain members of Puro's management and of the Puro
                          Board of Directors have certain interests in the
                          Merger
 
                                       7
<PAGE>
 
                          that are in addition to the interests they may have
                          as stockholders of Puro generally.
 
                          In connection with the Merger, new employment
                          agreements will be entered into with Scott Levy,
                          Chief Executive Officer of Puro, and Jack C. West,
                          President and Secretary of Puro (the "Employment
                          Agreements").
 
                          Pursuant to the Employment Agreements, Mr. Levy would
                          be employed for a four-year term as Regional Manager
                          of Operations, Northeast of the U.S. Filter Consumer
                          Products Group and Mr. West would be employed for a
                          two-year term as Regional Manager for Acquisitions of
                          the U.S. Filter Consumer Products Group. Mr. Levy's
                          and Mr. West's employment would be at annual salaries
                          of $187,000 and $100,000, respectively, plus expenses
                          and benefits consistent with their positions. Both
                          agreements contain confidentiality undertakings
                          respecting proprietary information of U.S. Filter,
                          and Mr. West's agreement contains a non-competition
                          undertaking. If, during the term of the Employment
                          Agreement, either of Messrs. Levy or West is
                          terminated without cause, he will receive the
                          remaining payments due to him pursuant to his
                          Employment Agreement. Additionally, if Mr. West is
                          terminated without cause during his initial two-year
                          term, he will receive a severance payment equivalent
                          to two times his annual base salary as of the last
                          day of his employment with U.S. Filter. If, following
                          expiration of the second year of his four-year term,
                          Mr. Levy terminates his Employment Agreement, he will
                          receive a payment equivalent to his annual base
                          salary as of the last day of his employment with U.S.
                          Filter, payable in shares of U.S. Filter Common
                          Stock. If, upon expiration of his two-year term, Mr.
                          West is not offered an employment arrangement at the
                          same annual base salary that he received as of the
                          last day of his two-year term and that is otherwise
                          on terms substantially similar to the terms of the
                          Employment Agreement (except with respect to
                          severance payments), he will receive a payment
                          equivalent to two times his annual base salary as of
                          the last day of his employment with U.S. Filter.
 
                          Pursuant to the Merger Agreement, each stock option
                          currently outstanding pursuant to the Employee Stock
                          Option Plan or Director Stock Option Plan, whether or
                          not then exercisable in accordance with its terms,
                          will be converted into an option to purchase shares
                          of U.S. Filter Common Stock on the basis of the
                          Exchange Ratio. In addition, each of Peter T. Dixon
                          and Stephen Edberg, directors of Puro, beneficially
                          own separate options to purchase 73,926 shares and
                          49,284 shares, respectively, of Puro Common Stock
                          which will be converted into options to purchase U.S.
                          Filter Common Stock on the basis of the Exchange
                          Ratio.
 
                          See "The Merger--Interests of Certain Persons in the
                          Merger" and "The Merger Agreement--Employee and
                          Director Stock Options" and "--Other Option."
 
 
                                       8
<PAGE>
 
                          The obligations of U.S. Filter and Puro to consummate
Conditions to the         the Merger are subject to the satisfaction of certain
Merger; Termination of    conditions, including obtaining requisite approval of
the Merger Agreement      the Puro stockholders; expiration or termination of
                          all waiting periods applicable to the Merger under
                          the United States Hart-Scott-Rodino Antitrust
                          Improvements Act of 1976, as amended (the "HSR Act");
                          the absence of any temporary restraining order,
                          injunction or other order or legal or regulatory
                          restraint or prohibition preventing, or the enactment
                          of any law making illegal, the consummation of the
                          Merger, or limiting or restricting U.S. Filter's or
                          Puro's conduct or operation of Puro's business after
                          the Merger; receipt of any material third party
                          consents; the receipt of certain legal opinions; the
                          qualification of the Merger as a pooling of interests
                          for accounting purposes; consents of the holders to
                          the conversion of each Employee and Director Stock
                          Option and certain other rights to acquire Puro
                          Common Stock into rights to acquire U.S. Filter
                          Common Stock; and the execution of employment
                          agreements with certain officers and employees of
                          Puro. See "The Merger--Accounting Treatment," "--
                          Certain Federal Income Tax Consequences" and "--
                          Regulatory Approvals" and "The Merger Agreement--
                          Conditions."
 
                          U.S. Filter and Puro filed notification and report
                          forms under the HSR Act with the United States
                          Federal Trade Commission ("FTC") and the Antitrust
                          Division of the United States Department of Justice
                          ("Antitrust Division") on October 28, 1997. The
                          required waiting period under the HSR Act expires on
                          November 27, 1997 unless a request for additional
                          information is received prior to that date.
 
                          The Merger Agreement is subject to termination (i) at
                          the option of either U.S. Filter or Puro if the
                          Merger is not consummated before March 31, 1998,
                          provided no party may terminate the Merger Agreement
                          on such basis whose failure to fulfill any material
                          obligation has been a cause of the failure of the
                          Merger to occur or (ii) otherwise upon the occurrence
                          of certain specified events. See "The Merger
                          Agreement--Termination; Termination Fees and
                          Expenses."
 
                          Under certain circumstances, Puro may be required to
                          reimburse U.S. Filter for its expenses and to pay
                          U.S. Filter a termination fee of $1,250,000 or
                          $750,000, depending on the basis for the termination,
                          if the Merger Agreement is terminated. See "The
                          Merger Agreement-- Termination; Termination Fees and
                          Expenses."
 
Exchange of Stock         Upon consummation of the Merger, each holder of a
 Certificates             certificate or certificates representing shares of
                          Puro Common Stock outstanding immediately prior to
                          the Effective Time will, upon the surrender thereof
                          (duly endorsed, if required) to American Stock
                          Transfer and Trust Company (the "Exchange Agent"), be
                          entitled to receive a certificate or certificates
                          representing the number of shares of U.S. Filter
                          Common Stock into which such shares of Puro Common
                          Stock will have been automatically converted as a
                          result of the Merger, together with cash in
 
                                       9
<PAGE>
 
                          lieu of fractional shares. The Exchange Agent will
                          mail a letter of transmittal with instructions to all
                          holders of record of Puro Common Stock as of the
                          Effective Time for use in surrendering their stock
                          certificates in exchange for certificates
                          representing shares of U.S. Filter Common Stock.
                          CERTIFICATES SHOULD NOT BE SURRENDERED UNTIL THE
                          LETTER OF TRANSMITTAL AND INSTRUCTIONS ARE RECEIVED.
                          See "The Merger Agreement--Conversion of Puro Common
                          Stock."
 
No Appraisal Rights       Holders of Puro Common Stock will not be entitled to
                          dissenters' appraisal rights under applicable
                          Delaware corporate law in connection with the Merger.
 
Certain U.S. Income Tax   It is intended that the Merger will constitute a
Consequences              reorganization within the meaning of Section 368(a)
                          of the United States Internal Revenue Code of 1986,
                          as amended (the "Code") and that no gain or loss will
                          be recognized by U.S. Filter or Puro and no gain or
                          loss would be recognized by Puro stockholders on the
                          exchange of shares of Puro Common Stock for U.S.
                          Filter Common Stock pursuant to the Merger, except
                          with respect to fractional shares. Consummation of
                          the Merger is conditioned upon the receipt of an
                          opinion of counsel to U.S. Filter to such effect. For
                          a further discussion of certain federal income tax
                          consequences of the Merger, see "The Merger--Certain
                          Federal Income Tax Consequences" and "The Merger
                          Agreement--Conditions."
 
Accounting Treatment      Consummation of the Merger is conditioned upon the
                          qualification of the Merger as a pooling of interests
                          for accounting and financial reporting purposes. See
                          "The Merger--Accounting Treatment" and "The Merger
                          Agreement--Conditions."
 
 
                                       10
<PAGE>
 
                           COMPARATIVE PER SHARE DATA
 
  Set forth below are net income, cash dividends declared and book value per
common share data of U.S. Filter and Puro on both historical and unaudited pro
forma combined bases and on a per share equivalent unaudited pro forma basis.
The information set forth below should be read in conjunction with the
respective financial statements of U.S. Filter and Puro that are incorporated
by reference or included in this Proxy Statement/Prospectus.
 
<TABLE>
<CAPTION>
                                    FISCAL YEAR ENDED MARCH 31,   THREE MONTHS
                                    -----------------------------     ENDED
                                       1995     1996      1997    JUNE 30, 1997
                                    ------------------- --------- -------------
   <S>                              <C>        <C>      <C>       <C>
   U.S. FILTER--HISTORICAL
   Net income per common share....       0.49      0.49      0.77      0.26
   Cash dividends declared........        --        --        --        --
   Book value (end of period).....                          13.80     14.73
<CAPTION>
                                      YEAR ENDED DECEMBER 31,     THREE MONTHS
                                    -----------------------------     ENDED
                                     1994(5)    1995      1996    JUNE 30, 1997
                                    ------------------- --------- -------------
   <S>                              <C>        <C>      <C>       <C>
   PURO--HISTORICAL
   Net income per common share....       0.14      0.21      0.28      0.05
   Cash dividends declared........        --        --        --        --
   Book value (end of period).....                           2.18      3.17
<CAPTION>
                                          FISCAL YEAR (1)         THREE MONTHS
                                    -----------------------------     ENDED
                                     1995(6)    1996      1997    JUNE 30, 1997
                                    ------------------- --------- -------------
   <S>                              <C>        <C>      <C>       <C>
   PRO FORMA COMBINED
   Net income per common
    share(2)(3)...................       0.49      0.49      0.77      0.26
   Cash dividends declared(4).....        --        --        --        --
   Book value(3) (end of period)..                          13.75     14.74
   EQUIVALENT PRO FORMA COMBINED
    PER PURO COMMON SHARE(5)
   Net income per common
    share(2)(3)...................       0.09      0.09      0.14      0.05
   Cash dividends declared(4).....        --        --        --        --
   Book value(3) (end of period)..                           2.52      2.70
</TABLE>
- --------
(1) Combines U.S. Filter's fiscal years ended March 31, 1995, 1996 and 1997
    with Puro's years ended December 31, 1994, 1995 and 1996, respectively.
(2) Reflects the combination of U.S. Filter net income per common share with
    Puro net income per common share.
(3) Does not give effect to anticipated expenses related to the Merger and does
    not reflect cost savings that U.S. Filter management believes may be
    realized following the Merger. See "The Merger--U.S. Filter Reasons for the
    Merger."
(4) U.S. Filter does not anticipate paying cash dividends on the U.S. Filter
    Common Stock in the foreseeable future. As a result of the foregoing and
    the fact that U.S. Filter has not historically paid a dividend on the U.S.
    Filter Common Stock, pro forma cash dividends is not meaningful. See
    "Market Price and Dividend Data."
(5) The equivalent pro forma combined data for Puro represent the pro forma
    combined data multiplied by an Exchange Ratio based on an assumed U.S.
    Filter Average Market Price of $39.25, which is the average of the high and
    low sales prices of the U.S. Filter Common Stock on October 30, 1997.
(6) Puro's fiscal year ended December 31, 1994 includes the period from
    inception (February 1, 1994) through December 31, 1994.
 
                                       11
<PAGE>
 
                                 RISK FACTORS
 
  The following factors should be taken into account by holders of Puro Common
Stock in evaluating whether to approve and adopt the Merger Agreement and the
transactions contemplated thereby, which approval and adoption will, if the
other conditions to the Merger are satisfied or waived, result in their
becoming holders of U.S. Filter Common Stock. These considerations should be
taken into account in conjunction with the other information included or
incorporated by reference in this Proxy Statement/Prospectus.
 
ACQUISITION STRATEGY
 
  In pursuit of its strategic objective of becoming the leading global single-
source provider of water and wastewater treatment systems and services, U.S.
Filter has, since 1991, successfully acquired and integrated more than 100
United States based and international businesses with strong market positions
and substantial water and wastewater treatment expertise. U.S. Filter plans to
continue to pursue acquisitions that expand the segments of the water and
wastewater treatment and water-related industries in which it participates,
complement its technologies, products or services, broaden its customer base
and geographic areas served and/or expand its global distribution network, as
well as acquisitions which provide other opportunities to further and
implement U.S. Filter's one-stop-shop approach in terms of technology,
distribution or service. U.S. Filter's acquisition strategy entails the
potential risks inherent in assessing the value, strengths, weaknesses,
contingent or other liabilities and potential profitability of acquisition
candidates and in integrating the operations of acquired companies. Although
U.S. Filter generally has been successful in pursuing these acquisitions,
there can be no assurance that acquisition opportunities will continue to be
available, that U.S. Filter will have access to the capital required to
finance potential acquisitions, that U.S. Filter will continue to acquire
businesses or that any business acquired will be integrated successfully or
prove profitable.
 
INTERNATIONAL TRANSACTIONS
 
  U.S. Filter has made and expects it will continue to make acquisitions and
obtain contracts in markets outside the United States. While these activities
may provide important opportunities for U.S. Filter to offer its products and
services internationally, they also entail the risks associated with
conducting business internationally, including the risk of currency
fluctuations, slower payment of invoices, nationalization and possible social,
political and economic instability.
 
RELIANCE ON KEY PERSONNEL
 
  U.S. Filter's operations are dependent on the continued efforts of senior
management, in particular Richard J. Heckmann, U.S. Filter's Chairman of the
Board, President and Chief Executive Officer. U.S. Filter does not have
employment agreements with most members of senior management, including Mr.
Heckmann. Should any of the senior managers with whom U.S. Filter does not
have a contract be unable or choose not to continue in their present roles,
U.S. Filter's prospects could be adversely affected.
 
PROFITABILITY OF FIXED PRICE CONTRACTS
 
  A significant portion of U.S. Filter's revenues are generated under fixed
price contracts. To the extent that original cost estimates are inaccurate,
costs to complete increase, delivery schedules are delayed or progress under a
contract is otherwise impeded, revenue recognition and profitability from a
particular contract may be adversely affected. U.S. Filter routinely records
upward or downward adjustments with respect to fixed price contracts due to
changes in estimates of costs to complete such contracts. There can be no
assurance that future downward adjustments will not be material.
 
CYCLICALITY AND SEASONALITY
 
  The sale of capital equipment within the water treatment industry is
cyclical and influenced by various economic factors including interest rates
and general fluctuations of the business cycle. A significant portion of
 
                                      12
<PAGE>
 
U.S. Filter's revenues is derived from capital equipment sales. While U.S.
Filter sells capital equipment to customers in diverse industries and in
global markets, cyclicality of capital equipment sales and instability of
general economic conditions could have an adverse effect on U.S. Filter's
revenues and profitability.
 
  The sale of water and wastewater distribution equipment and supplies is also
cyclical and influenced by various economic factors including interest rates,
land development and housing construction industry cycles. Sales of such
equipment and supplies are also subject to seasonal fluctuation in northern
climates. The sale of water and wastewater distribution equipment and supplies
is a significant component of U.S. Filter's business. Cyclicality and
seasonality of water and wastewater distribution equipment and supplies sales
could have an adverse effect on U.S. Filter's revenues and profitability.
 
POTENTIAL ENVIRONMENTAL RISKS
 
  U.S. Filter's business and products may be significantly influenced by the
constantly changing body of environmental laws and regulations, which require
that certain environmental standards be met and impose liability for the
failure to comply with such standards. U.S. Filter is also subject to inherent
risks associated with environmental conditions at facilities owned, and the
state of compliance with environmental laws, by businesses acquired by U.S.
Filter. While U.S. Filter endeavors at each of its facilities to assure
compliance with environmental laws and regulations, there can be no assurance
that U.S. Filter's operations or activities, or historical operations by
others at U.S. Filter's locations, will not result in cleanup obligations,
civil or criminal enforcement actions or private actions that could have a
material adverse effect on U.S. Filter. In that regard, United States federal
and state environmental regulatory authorities have issued certain notices of
violation related to alleged multiple violations of applicable wastewater
pretreatment standards by a wholly owned subsidiary of U.S. Filter at a
Connecticut ion exchange resin regeneration facility acquired by U.S. Filter
in October 1995 from Anjou International Company ("Anjou"). A grand jury
investigation is pending which is believed to relate to the same conditions
that were the subject of the notices of violation. U.S. Filter has certain
rights of indemnification from Anjou which may be available with respect to
these matters. In addition, U.S. Filter's activities as owner and operator of
certain hazardous waste treatment and recovery facilities are subject to
stringent laws and regulations and compliance reviews. Failure of one of these
facilities to comply with those regulations could result in substantial fines
and the suspension or revocation of the facility's hazardous waste permit. In
other matters, U.S. Filter has been notified by the United States
Environmental Protection Agency that it is a potentially responsible party
under the Comprehensive Environmental Response, Compensation, and Liability
Act ("CERCLA") at certain sites to which U.S. Filter or its predecessors
allegedly sent waste in the past. It is possible that U.S. Filter could
receive other such notices under CERCLA or analogous state laws in the future.
U.S. Filter does not believe that its liability, if any, relating to such
matters will be material. However, there can be no assurance that such matters
will not be material. In addition, to some extent, the liabilities and risks
imposed by environmental laws on U.S. Filter's customers may adversely impact
demand for certain of U.S. Filter's products or services or impose greater
liabilities and risks on U.S. Filter, which could also have an adverse effect
on U.S. Filter's competitive or financial position.
 
COMPETITION
 
  All of the markets in which U.S. Filter competes are highly competitive. Due
to the nature of these markets, many of which are fragmented and include an
array of different sources of competition, U.S. Filter knows of no reliable
statistics that provide a basis from which to estimate U.S. Filter's relative
competitive position. There are competitors of U.S. Filter in certain markets
that are divisions or subsidiaries of large companies that have significantly
greater resources than U.S. Filter. In connection with the marketing of water
distribution equipment and supplies, U.S. Filter competes not only with a
large number of independent wholesalers and with other distribution chains
similar to U.S. Filter, but also with manufacturers who sell directly to
customers. In the residential water market, U.S. Filter competes with
companies with national distribution networks, businesses with regional scope
and local product assemblers or service companies, as well as retail outlets.
U.S. Filter believes that there are thousands of participants in the household
water market.
 
 
                                      13
<PAGE>
 
POTENTIAL RISKS OF WATER RIGHTS AND WATER TRANSFERS
 
  U.S. Filter recently acquired more than 47,000 acres of agricultural land
(the "Properties"), situated in the Southwestern United States, the
substantial majority of which are in Imperial County, California (the "IID
Properties") located within the Imperial Irrigation District (the "IID").
Substantially all of the Properties are currently leased to third party
agricultural tenants, including prior owners of the Properties. U.S. Filter
acquired the Properties with appurtenant water rights, and is actively seeking
to acquire additional properties with water rights, primarily in the
Southwestern and Western United States. U.S. Filter may seek in the future to
transfer water attributable to water rights appurtenant to the Properties,
particularly the IID Properties (the "IID Water"). However, since the IID
holds title to all of the water rights within the IID in trust for the
landowners, the IID would control the timing and terms of any transfers of IID
Water by U.S. Filter. The circumstances under which transfers of water can be
made and the profitability of any transfers are subject to significant
uncertainties, including hydrologic risks of variable water supplies, risks
presented by allocations of water under existing and prospective priorities,
and risks of adverse changes to or interpretations of United States federal,
state and local laws, regulations and policies. Transfers of water
attributable to water rights appurtenant to the IID Properties (the "IID Water
Rights") are subject to additional uncertainties. Allocations of Colorado
River water, which is the source of all water deliveries to the IID
Properties, are subject to limitations under complex international treaties,
interstate compacts, United States federal and state laws and regulations, and
contractual arrangements and, in times of drought, water deliveries could be
curtailed by the United States government. Further, any transfers of IID Water
would require the approval of the United States Secretary of the Interior.
Even if a transfer were approved, other California water districts and users
could assert claims adverse to the IID Water Rights including but not limited
to, claims that IID has failed to satisfy United States federal law and
California constitutional requirements that IID Water must be put to
reasonable and beneficial use. A finding that IID's water use is unreasonable
or nonbeneficial could adversely impact title to IID Water Rights and the
ability to transfer IID Water. Water transferred by the IID to metropolitan
areas of Southern California, such as San Diego, would be transported through
aqueducts owned or controlled by the Metropolitan Water District, a quasi-
governmental agency (the "MWD"). The transportation cost for any transfer of
IID Water and the volume of water which the MWD can be required to transport
at any time are subject to California laws of uncertain application, some
aspects of which are currently in litigation.
 
TECHNOLOGICAL AND REGULATORY CHANGE
 
  The water and wastewater treatment business is characterized by changing
technology, competitively imposed process standards and regulatory
requirements, each of which influences the demand for U.S. Filter's products
and services. Changes in regulatory or industrial requirements may render
certain of U.S. Filter's treatment products and processes obsolete. Acceptance
of new products may also be affected by the adoption of new government
regulations requiring stricter standards. U.S. Filter's ability to anticipate
changes in technology and regulatory standards and to develop successfully and
introduce new and enhanced products on a timely basis will be a significant
factor in U.S. Filter's ability to grow and to remain competitive. There can
be no assurance that U.S. Filter will be able to achieve the technological
advances that may be necessary for it to remain competitive or that certain of
its products will not become obsolete. In addition, U.S. Filter is subject to
the risks generally associated with new product introductions and
applications, including lack of market acceptance, delays in development or
failure of products to operate properly.
 
MUNICIPAL AND WASTEWATER MARKET
 
  A significant percentage of U.S. Filter's revenues is derived from municipal
customers. While municipalities represent an important market in the water and
wastewater treatment industry, contractor selection processes and funding for
projects in the municipal sector entail certain additional risks not typically
encountered with industrial customers. Competition for selection of a
municipal contractor typically occurs through a formal bidding process which
can require the commitment of significant resources and greater lead times
than industrial projects. In addition, demand in the municipal market is
dependent upon the availability of funding at the local level, which may be
the subject of increasing pressure as local governments are expected to bear a
greater share of the cost of public services.
 
 
                                      14
<PAGE>
 
  A company acquired by U.S. Filter, Zimpro Environmental, Inc. ("Zimpro"), is
party to certain agreements (entered into in 1990 at the time Zimpro was
acquired from unrelated third parties by the entities from which it was later
acquired by U.S. Filter), pursuant to which Zimpro agreed, among other things,
to pay the original sellers a royalty of 3.0% of its annual consolidated net
sales of certain products in excess of $35.0 million through October 25, 2000.
Under certain interpretations of such agreements, with which U.S. Filter
disagrees, Zimpro could be liable for such royalties with respect to the net
sales attributable to products, systems and services of certain defined
wastewater treatment businesses acquired by Zimpro or U.S. Filter or U.S.
Filter's other subsidiaries after May 31, 1996. The defined businesses
include, among others, manufacturing machinery and equipment, and engineering,
installation, operation and maintenance services related thereto, for the
treatment and disposal of waste liquids, toxic waste and sludge. One of the
prior sellers has revealed in a letter to U.S. Filter an interpretation
contrary to that of U.S. Filter. U.S. Filter believes that it would have
meritorious defenses to any claim based upon any such interpretation and would
vigorously pursue the elimination of any threat to expand what it believes to
be its obligations pursuant to such agreements.
 
SHARES ELIGIBLE FOR FUTURE SALE
 
  The market price of U.S. Filter Common Stock could be adversely affected by
the availability for public sale of shares held on October 15, 1997 by
security holders of U.S. Filter, including: (i) up to 3,646,783 shares which
may be delivered by Laidlaw Inc. or its affiliates ("Laidlaw"), at Laidlaw's
option in lieu of cash, at maturity pursuant to the terms of 5 3/4%
Exchangeable Notes due 2000 of Laidlaw (the amount of shares or cash delivered
or paid to be dependent within certain limits upon the value of the Common
Stock at maturity), or sold from time to time in accordance with Rule 144(k)
under the Securities Act; (ii) 7,636,363 shares issuable upon conversion of
U.S. Filter's 6% Convertible Subordinated Notes due 2005 at a conversion price
of $18.33 per share of Common Stock; (iii) 9,113,924 shares issuable upon
conversion of U.S. Filter's 4 1/2% Convertible Subordinated Notes due 2001 at
a conversion price of $39.50 per share of Common Stock; (iv) 1,200,000 shares
issuable upon exercise of warrants, 600,000 at an exercise price of $50.00 per
share and 600,000 at an exercise price of $60.00 per share, in each case
expiring on September 17, 2007 and exercisable at any time after the first
sale of water from water rights appurtenant to the Properties; (v) 2,719,618
outstanding shares that are currently registered for sale under the Securities
Act, pursuant to a shelf registration statement; and (vi) 8,496,157 shares
which are subject to agreements pursuant to which the holders have certain
rights to request the Company to register the sale of such holders' Common
Stock under the Securities Act and/or, subject to certain conditions, to
include certain percentages of such shares in other registration statements
filed by U.S. Filter, of which such rights as to 8,000,000 shares are not
exercisable until February 17, 2000. In addition, U.S. Filter has registered
for sale under the Securities Act 6,783,347 shares which may be issuable by
U.S. Filter from time to time in connection with acquisitions of businesses or
assets from third parties.
 
                                      15
<PAGE>
 
                           THE PURO SPECIAL MEETING
 
GENERAL
 
  This Proxy Statement/Prospectus is being furnished to holders of Puro Common
Stock in connection with the solicitation of proxies by the Board of Directors
of Puro for use at the Puro Special Meeting to be held on Wednesday, December
10, 1997 at Puro's headquarters at 56-24 58th Street, Maspeth, New York,
commencing at 10:00 a.m., local time, and at any adjournment or postponement
thereof. At the Puro Special Meeting, Puro's stockholders will consider and
vote upon a proposal to approve and adopt the Merger Agreement and the
transactions contemplated thereby (including the Merger).
 
  The Board of Directors of Puro has unanimously approved the Merger Agreement
and recommends a vote FOR approval and adoption of the Merger Agreement and
the transactions contemplated thereby by the stockholders of Puro. See "The
Merger--Puro Reasons for the Merger; Recommendation of the Puro Board of
Directors."
 
VOTING AT THE MEETING; RECORD DATE
 
  The Board of Directors of Puro has fixed November 5, 1997 as the record date
for the determination of Puro stockholders entitled to notice of and to vote
at the Puro Special Meeting. Accordingly, only holders of record of Puro
Common Stock on that record date will be entitled to notice of and to vote at
the Puro Special Meeting. As of November   , 1997, there were      shares of
Puro Common Stock outstanding, held by approximately    holders of record.
Each holder of record of shares of Puro Common Stock on the record date is
entitled to cast one vote per share on the proposal to approve and adopt the
Merger Agreement and the transactions contemplated thereby, exercisable in
person or by properly executed proxy, at the Puro Special Meeting. The
presence, in person or by properly executed proxy, of the holders of two-
thirds of the outstanding shares of Puro Common Stock entitled to vote at the
Puro Special Meeting is necessary to constitute a quorum at the Puro Special
Meeting.
 
  Shares represented by duly completed proxies submitted by nominee holders on
behalf of beneficial owners will be counted as present for purposes of
determining the existence of a quorum (except to the extent such proxies
reflect "broker non-votes"). Under the rules of the New York Stock Exchange
that govern most domestic stock brokerage firms, member firms that hold shares
in street name for beneficial owners that have received no instructions from
their clients as to "non-discretionary" proposals do not have discretion to
vote on those proposals. The New York Stock Exchange has advised Puro that the
proposal to approve and adopt the Merger Agreement and the transactions
contemplated thereby is "non-discretionary." Accordingly, if a broker
indicates that it does not have authority to vote certain shares with respect
to the proposal ("broker non-votes"), those shares will not be counted for
purposes of determining the existence of a quorum. Abstentions will be counted
as present for purposes of determining the existence of a quorum.
 
  The affirmative vote of the holders of a majority of all shares of Puro
Common Stock entitled to vote on the proposal is required to approve and adopt
the Merger Agreement and the transactions contemplated thereby. Because
abstentions and "broker non-votes" will not be recorded as votes in favor of
the proposal, both abstentions and "broker non-votes" will have the effect of
votes against the proposal.
 
  U.S. Filter has entered into a Stockholder Agreement with each of Peter T.
Dixon, the Dixon Trusts, Beth Levy, Scott Levy, Jack C. West and Edberg
Associates Limited Partnership, pursuant to which each such Puro stockholder
has agreed, among other things, to vote, and at U.S. Filter's request to grant
U.S. Filter an irrevocable proxy to vote, all shares of Puro Common Stock
owned by such stockholder in favor of approval and adoption of the Merger
Agreement and the transactions contemplated thereby. Such stockholder has also
agreed not to sell, transfer or encumber any of the shares of Puro Common
Stock now owned or acquired during the term of the Stockholder Agreement by
such stockholder. As of October 15, 1997, such stockholders owned or had the
sole power to vote an aggregate of 2,139,256 shares, or approximately 62%, of
the outstanding Puro Common Stock. See "The Merger Agreement--The Stockholder
Agreements." No other votes (assuming EAB does not
 
                                      16
<PAGE>
 
exercise any rights of disposition in connection with the Pledged Shares) are
needed to approve the Merger Agreement and the transactions contemplated
thereunder; however, the Puro By-Laws require the presence of the holders of
at least two-thirds of the shares entitled to vote to constitute a quorum for
the transaction of business at any meeting of stockholders. Accordingly, the
presence of at least 178,604 additional shares of Puro Common Stock is
required in order to convene the Special Meeting and permit a vote to be taken
with respect to the Merger Agreement.
 
PROXIES
 
  All properly executed proxy cards delivered by stockholders to Puro in time
to be voted at the Puro Special Meeting and not revoked will be voted at the
Puro Special Meeting in accordance with the directions noted thereon. In the
absence of such instructions, the shares represented by a properly executed
and dated proxy card will be voted "FOR" the proposal to approve and adopt the
Merger Agreement and the transactions contemplated thereby.
 
  Any stockholder delivering a proxy has the power to revoke it at any time
before it is voted by giving written notice to Jack C. West, Secretary of
Puro, at 56-24 58th Street, Maspeth, New York 11378; by executing and
delivering to Mr. West a proxy card bearing a later date; or by voting in
person at the Puro Special Meeting; provided, however, that under the rules of
the New York Stock Exchange, any beneficial owner of Puro Common Stock whose
shares are held in street name by a member brokerage firm may revoke his proxy
and vote his shares in person at the Puro Special Meeting only in accordance
with applicable rules and procedures of the New York Stock Exchange.
 
  Except as described under "The Merger Agreement--Termination; Termination
Fees and Expenses," all expenses of this solicitation, excluding the cost of
printing and mailing this Proxy Statement/Prospectus and the filing fee paid
to the Commission in connection with filing the Registration Statement (which
will be shared equally by Puro and U.S. Filter), will be paid by the party
incurring the expense. In addition to solicitation by use of the mails,
proxies may be solicited by directors, officers and employees of Puro in
person or by telephone, facsimile or other means of communication. Such
directors, officers and employees will not be additionally compensated, but
may be reimbursed for reasonable out-of-pocket expenses in connection with
such solicitation. Arrangements will also be made with custodians, nominees
and fiduciaries for forwarding of proxy solicitation materials to beneficial
owners of shares held of record by such custodians, nominees and fiduciaries,
and Puro will reimburse such custodians, nominees and fiduciaries for
reasonable expenses incurred in connection therewith.
 
  PURO STOCKHOLDERS SHOULD NOT SEND ANY STOCK CERTIFICATES WITH THEIR PROXY
CARDS.
 
                                      17
<PAGE>
 
                        MARKET PRICE AND DIVIDEND DATA
 
  U.S. Filter Common Stock is listed on the New York Stock Exchange and traded
under the symbol "USF." Puro Common Stock is listed on the American Stock
Exchange and traded under the symbol "HHO." The table below sets forth, for
the fiscal quarters indicated, the high and low composite sales prices of U.S.
Filter Common Stock and Puro Common Stock as reported by the New York Stock
Exchange and American Stock Exchange, respectively. Prior to February 7, 1997,
there was no established trading market for the Puro Common Stock. No cash
dividends were declared on U.S. Filter Common Stock or Puro Common Stock
during the periods indicated. Each fiscal year of U.S. Filter is ended March
31, and each fiscal year of Puro is ended December 31.
 
<TABLE>
<CAPTION>
                          U.S. FILTER
                         COMMON STOCK
                         -------------
                          HIGH   LOW
                         ------ ------
<S>                      <C>    <C>
FISCAL 1996
First Quarter........... $13.08 $ 9.92
Second Quarter..........  16.08  12.50
Third Quarter...........  18.00  13.42
Fourth Quarter..........  19.33  16.42
FISCAL 1997
First Quarter...........  23.75  18.42
Second Quarter..........  34.75  18.50
Third Quarter...........  36.25  30.38
Fourth Quarter..........  39.00  28.88
FISCAL 1998
First Quarter...........  33.38  25.75
Second Quarter..........  43.19  26.94
Third Quarter
 (through November 5,
 1997)..................  44.44  32.50
</TABLE>
<TABLE>
<CAPTION>
                              PURO
                             COMMON
                             STOCK
                          -----------
                           HIGH  LOW
                          ----- -----
<S>                       <C>   <C>
FISCAL 1997
First Quarter............ $6.63 $5.25
Second Quarter...........  7.38  5.38
Third Quarter............  6.38  4.13
Fourth Quarter
 (through November 5,
 1997)...................  6.88  4.88
</TABLE>
 
  On October 9, 1997, the last full trading day prior to the date on which the
Merger Agreement was publicly announced, the last reported sales price on the
New York Stock Exchange was $42.125 per share of U.S. Filter Common Stock and
the last reported sales price on the American Stock Exchange was $5.375 per
share of Puro Common Stock.
 
  On November   , 1997, the most recent practicable date prior to the printing
of this Proxy Statement/Prospectus, the last reported sales price on the New
York Stock Exchange was $    per share of U.S. Filter Common Stock and the
last reported sales price on the American Stock Exchange was $    per share of
Puro Common Stock. As of November   , 1997, there were approximately
record holders of U.S. Filter Common Stock and approximately      record
holders of Puro Common Stock.
 
  U.S. Filter currently intends to retain earnings to provide funds for the
operation and expansion of its business and accordingly does not anticipate
paying cash dividends on the U.S. Filter Common Stock in the foreseeable
future. Any payment of cash dividends on the U.S. Filter Common Stock in the
future will depend upon U.S. Filter's financial condition, earnings, capital
requirements and such other factors as the Board of Directors deems relevant.
 
  PURO STOCKHOLDERS ARE URGED TO OBTAIN CURRENT MARKET QUOTATIONS FOR U.S.
FILTER COMMON STOCK AND PURO COMMON STOCK PRIOR TO THE PURO SPECIAL MEETING.
 
 
                                      18
<PAGE>
 
                                  THE MERGER
 
BACKGROUND OF THE MERGER
 
  Early in 1997, U. S. Filter entered the consumer market for water and water
treatment products through the purchase of several businesses, and established
the U. S. Filter Consumer Products Group. In addition to various household and
other consumer businesses, the Consumer Products Group participates in the
five-gallon segment of the bottled water market. In seeking to expand that
business, U. S. Filter identified Puro as a possible acquisition candidate.
 
  In April 1997, Randall C. Easton, Senior Vice President--Consumer Products
Group, contacted Jack C. West, President of Puro, about a possible acquisition
of Puro by U. S. Filter. At a meeting on April 22, 1997, Mr. Easton and
another representative of U. S. Filter exchanged information with Mr. West
regarding their respective companies. On the basis of that discussion, U. S.
Filter concluded that a transaction probably was not feasible, based on the
price in the range of $7.00 per share of Puro Common Stock suggested by Mr.
West.
 
  A second meeting was held on June 13, 1997, in which Scott Levy, Chief
Executive Officer of Puro, also participated. At that meeting, U. S. Filter
received additional financial information which supported payment of a higher
purchase price than originally contemplated by U. S. Filter. After signing a
confidentiality agreement and conducting due diligence, U. S. Filter advised
Puro that it might be prepared to pay $6.75 per share of Puro Common Stock in
shares of U. S. Filter Common Stock, subject to additional due diligence and
certain other conditions.
 
  At a meeting on September 12, 1997, the Board of Directors of Puro
authorized the Puro management to negotiate a possible transaction with U. S.
Filter on the basis of $6.85 per share, and a letter was signed in which U. S.
Filter and Puro agreed to consider a merger on that basis, subject to
negotiation and execution of a definitive agreement, due diligence by both
parties, Board approvals and stockholder approval on the part of Puro.
Beginning September 15, 1997, both parties conducted due diligence and
negotiated the terms of the Merger Agreement, the Stockholder Agreements and
the Employment Agreements.
 
  At a Puro Board of Directors meeting held on October 4, 1997, Peter T.
Dixon, the beneficial owner of 1,290,136 outstanding shares of Puro Common
Stock and Chairman of the Puro Board of Directors, indicated that he would not
be in favor of a transaction at $6.85 per share. Following the meeting, Puro
management advised U. S. Filter that $6.85 per share was inadequate, and
proposed a price of $7.85 per share. After further negotiation, the parties
agreed to a price of $7.20 per share, to be based on the Exchange Ratio, which
was approved by the Puro Board of Directors on October 8, 1997. The Merger
Agreement was executed, and delivered by the parties on October 10, 1997.
 
U.S. FILTER REASONS FOR THE MERGER
 
  U.S. Filter's strategy for its Consumer Products Group includes expansion of
its participation in the bottled water segment of the consumer market. U.S.
Filter believes that the acquisition of Puro will enable U.S. Filter to enter
one of the largest bottled water markets in the United States through one of
the leading of providers five-gallon bottled water in that market.
 
PURO REASONS FOR THE MERGER; RECOMMENDATION OF THE PURO BOARD OF DIRECTORS
 
  The terms of the Merger, including the Exchange Ratio, were determined
through negotiations between Puro and U.S. Filter following extensive
discussions, financial analysis and preliminary due diligence. The Board of
Directors of Puro believes that the terms of the Merger Agreement and the
transactions contemplated thereby are fair to and in the best interests of
Puro and its stockholders and has unanimously approved the Merger Agreement
and recommends the approval and adoption of the Merger Agreement and the
transactions contemplated thereby by the stockholders of Puro.
 
                                      19
<PAGE>
 
  In reaching its decision to approve the Merger Agreement and the
transactions contemplated thereby, Puro's Board of Directors considered a
number of factors, including:
 
  The terms of the Merger, including the Puro Per Share Purchase Price, were
determined through negotiations between Puro and U.S. Filter following
extensive discussions, financial analysis and preliminary due diligence. The
Board of Directors of Puro believes that the terms of the Merger Agreement and
the transactions contemplated thereby are fair and in the best interests of
Puro and its stockholders and has unanimously approved the Merger Agreement
and recommends the approval and adoption of the Merger Agreement and the
transactions contemplated thereby by the stockholders of Puro.
 
  In reaching its decision to approve the Merger Agreement and the
transactions contemplated thereby, Puro's Board of Directors considered a
number of factors, including:
 
    (i) information concerning the financial performance and condition,
  business operations and prospects of each of Puro and U.S. Filter and
  Puro's projected future value and prospects as a separate entity and on a
  combined basis with U.S. Filter;
 
    (ii) current industry, economic and market conditions which have
  encouraged consolidation and business combinations to enable companies to
  provide integrated services in the consumer markets for water and water-
  related products;
 
    (iii) the enhancement of the strategic and market position of the
  combined companies beyond that achievable by Puro alone, and U.S. Filter's
  historic growth pattern as well as its interest in the consumer markets for
  water and water-related products;
 
    (iv) the structure of the transaction and the terms of the Merger
  Agreement, including the Puro Per Share Purchase Price, which were the
  result of arms-length negotiations between Puro and U.S. Filter;
 
    (v) the fact that the Merger would provide the stockholders of Puro with
  the opportunity to receive a significant premium over the recent market
  price for the Puro Common Stock, and to exchange their shares of Puro
  Common Stock for more actively traded U.S. Filter Common Stock;
 
    (vi) the terms of the Merger Agreement that permit Puro's Board of
  Directors, in the exercise of its fiduciary duties and subject to certain
  conditions, to respond to unsolicited inquiries regarding potential
  business combination transactions. Puro's Board of Directors noted that, in
  specified events, U.S. Filter would have certain rights of termination as a
  result of which Puro would be obligated to pay U.S. Filter either $750,000
  or $1,250,000, depending on the circumstances of the termination, which, in
  the view of the Puro Board, would not unreasonably impede any interested
  third party from proposing a superior transaction;
 
    (vii) the financial strength of U.S. Filter and its ability to provide
  Puro with the working capital and business resources necessary to allow it
  to implement its business plan, including the ability and potential to
  exploit Puro's current geographic market and to expand beyond that market;
 
    (viii) the expectation that the Merger will afford Puro's stockholders
  the opportunity to receive U.S. Filter Common Stock in a transaction that
  is non-taxable for United States federal income tax purposes; and
 
    (ix) the likelihood that the Merger would be consummated.
 
  The Puro Board of Directors determined that a merger with U.S. Filter was
the best alternative for achieving the strategic objectives of Puro because,
among other things, the combined entity would have a significant presence in
the overall consumer market for water and water-related products that would
better enable Puro to compete in the industry. Following the Merger, Puro is
expected to have greater business and economic resources. The Board of
Directors believes that the proposed Merger is an opportunity for Puro's
stockholders to
 
                                      20
<PAGE>
 
participate in a combined enterprise which has greater business and financial
resources and long-term growth potential than Puro would have on its own.
 
  The foregoing discussion of the information and factors considered and given
weight by the Puro Board of Directors is not intended to be exhaustive, but
includes the material factors considered by the Puro Board. In addition, in
reaching the determination that the Merger is fair to and in the best interest
of Puro's stockholders, in view of the wide variety of factors considered in
connection with its evaluation of the proposed Merger, Puro's Board considered
the factors above as a whole and did not find it practical to quantify, or
otherwise attempt to assign specific or relative weights to, such factors, and
the individual directors may have given differing weights to different
factors.
 
  THE BOARD OF DIRECTORS OF PURO UNANIMOUSLY RECOMMENDS THAT PURO STOCKHOLDERS
VOTE TO APPROVE AND ADOPT THE MERGER AGREEMENT AND THE TRANSACTIONS
CONTEMPLATED THEREBY.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
 General
 
  In considering the recommendation of Puro's Board of Directors, Puro
stockholders should be aware that certain members of Puro's management and of
the Puro Board of Directors have certain interests in the Merger that are in
addition to any interests they may have as stockholders of Puro generally.
These interests include, among others, employment agreements providing for
certain severance and other employee benefits and the conversion of Employee
and Director Stock Options into options to acquire shares of U.S. Filter
Common Stock on the basis of the Exchange Ratio.
 
 Puro Employment Agreements
 
  In connection with the Merger, Messrs. Levy and West will enter into
Employment Agreements with U.S. Filter. Pursuant to the Employment Agreements,
Mr. Levy would be employed for a four-year term as Regional Manager of
Operations, Northeast of the U.S. Filter Consumer Products Group and Mr. West
would be employed for a two-year term as Regional Manager for Acquisitions of
the U.S. Filter Consumer Products Group. Mr. Levy's and Mr. West's employment
would be at annual salaries of $187,000 and $100,000, respectively, plus
expenses and benefits consistent with their positions. Both agreements contain
confidentiality undertakings respecting proprietary information of U.S.
Filter, and Mr. West's agreement contains a non-competition undertaking. If,
during the term of the Employment Agreement, either of Messrs. Levy or West is
terminated without cause, he will receive the remaining payments due to him
pursuant to his Employment Agreement. Additionally, if Mr. West is terminated
without cause during his initial two-year term, he will receive a severance
payment equivalent to two times his annual base salary as of the last day of
his employment with U.S. Filter. If, following expiration of the second year
of his four-year term, Mr. Levy terminates his Employment Agreement, he will
receive a payment equivalent to his annual base salary as of the last day of
his employment with U.S. Filter, payable in shares of U.S. Filter Common
Stock. If, upon expiration of his two-year term, Mr. West is not offered an
employment arrangement at the same annual base salary that he received as of
the last day of his two-year term pursuant to the Employment Agreement and
that is otherwise on terms substantially similar to the terms of the
Employment Agreement (except with respect to severance payments), he will
receive a payment equivalent to two times his annual base salary as of the
last day of his employment with U.S. Filter.
 
 Other Options
 
  Peter T. Dixon and the Dixon Trusts hold two options to purchase an
aggregate of 73,926 shares of Puro Common Stock (the "Guarantee Options") at
an exercise price of $5.40 per share. The Guarantee Options were issued in
consideration of the collateralization by the Dixon Trusts of certain debt
obligations of Puro in connection with the business acquisitions of American
Eagle Water/Electrified Companies, Inc. ("Electrified") in January 1996 and
Mountainwood Spring Water Co., Inc. ("Mountainwood") in June 1996. Pursuant to
the Electrified transaction, Puro obtained a letter of credit in the amount of
$3,500,000 from EAB to secure seller financing of a like amount. Similarly,
Puro obtained a letter of credit in the amount of $500,000 from EAB in
connection with the Mountainwood transaction. Mr. Dixon secured both letters
of credit with personal assets. The option held by Mr. Dixon to purchase
24,642 shares will expire in April 2001 and the option held by the Dixon
Trusts to purchase 49,284 shares will expire in August 2001.
 
 
                                      21
<PAGE>
 
  Edberg Associates Limited Partnership ("Edberg Associates") holds an option
to purchase 49,284 shares of Puro Common Stock (the "Edberg Option") at an
exercise price of $5.40 per share. This option was issued in November 1996 as
an inducement for an equity investment by Edberg Associates in Puro and to
induce Dr. Stephen C. Edberg, a director of Puro, to serve on the Board of
Directors of Puro. Dr. Edberg is the beneficial owner of the Edberg Option,
which will expire in May 2001.
 
 Employee and Director Stock Options
 
  Pursuant to the Employee Stock Option Plan and the Director Stock Option
Plan and as of the date of this Proxy Statement/Prospectus, options to
purchase 125,000 shares of Puro Common Stock are outstanding. Pursuant to the
Merger Agreement, and subject to adjustment as set forth therein, at the
Effective Time, each such option, whether or not then exercisable in
accordance with its terms, will be converted into options to purchase shares
of U.S. Filter Common Stock on the basis of the Exchange Ratio.
 
  The following table sets forth, with respect to each executive officer of
Puro, all executive officers of Puro as a group and the non-employee directors
of Puro as a group, the number of shares of Puro Common Stock covered by
outstanding options held by such person or group:
 
<TABLE>
<CAPTION>
                        NAME OF PERSON OR GROUP                     OPTIONS HELD
                        -----------------------                     ------------
     <S>                                                            <C>
     Peter T. Dixon................................................    83,926
     Scott Levy....................................................         0
     Jack C. West..................................................         0
     Executive Officer Group.......................................         0
     Non-Employee Director Group (3 persons).......................   153,210*
</TABLE>
- --------
* Includes the Guarantee Options and the Edberg Option. Additionally, each of
  Peter T. Dixon, Stephen C. Edberg and Leonard D. Rosinski own beneficially
  options to purchase 10,000 shares of Puro Common Stock pursuant to the
  Director Stock Option Plan.
 
ACCOUNTING TREATMENT
 
  The Merger is intended to qualify as a pooling of interests for accounting
and financial reporting purposes. Under this method of accounting, the assets
and liabilities of U.S. Filter and Puro will be carried forward to the
combined company at their recorded amounts, income of the combined company
will include income of U.S. Filter and Puro for the entire fiscal period in
which the Merger occurs and the reported income of the separate companies for
prior periods will be combined and restated as income of the combined company.
 
  Pursuant to the Merger Agreement, each of U.S. Filter and Puro is required
to exercise its best efforts to cause the Merger to be accounted for as a
pooling of interests, and Puro has agreed to deliver or cause to be delivered
to U.S. Filter from each of its affiliates an executed agreement as of the
Effective Time to the effect that such person has not transferred shares of
Puro Common Stock or U.S. Filter Common Stock within the preceding 30 days and
will not transfer any shares of U.S. Filter Common Stock prior to the date
that U.S. Filter publishes results covering at least 30 days of post-Merger
operations.
 
  Consummation of the Merger is conditioned upon the qualification of the
Merger as a pooling of interests for accounting purposes. See "The Merger
Agreement--Conditions."
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
  Following is a summary of material United States federal income tax
consequences of the Merger based on current United States law. Neither U.S.
Filter nor Puro has requested or will request any ruling from the United
States Internal Revenue Service as to the United States federal income tax
consequences of the Merger. Future legislative, judicial or administrative
changes or interpretations, which may be retroactive, could alter or modify
the statements set forth herein. This summary may not apply to certain classes
of taxpayers, including, without
 
                                      22
<PAGE>
 
limitation, insurance companies, tax-exempt organizations, financial
institutions, dealers in securities, non-resident aliens, non-U.S.
corporations, persons who acquired shares of Puro Common Stock pursuant to the
exercise of employee stock options or rights or otherwise as compensation and
persons who hold shares of Puro Common Stock in a hedging transaction or as
part of a straddle or conversion transaction. Also, the summary does not
address state, local or non-United States tax consequences of the Merger.
Consequently, each holder of Puro Common Stock (a "Holder") should consult
such Holder's own tax advisor as to the specific tax consequences of the
Merger to the Holder.
 
  The Merger will be treated as a reorganization within the meaning of Section
368(a) of the Code. Accordingly, for United States federal income tax
purposes, no gain or loss will be recognized by either U.S. Filter or Puro as
a result of the Merger, and Holders who exchange shares of Puro Common Stock
for shares of U.S. Filter Common Stock pursuant to the Merger will be treated
as follows:
 
    (i) no gain or loss will be recognized by a Holder with respect to the
  receipt of U.S. Filter Common Stock;
 
    (ii) the aggregate adjusted tax basis of shares of U.S. Filter Common
  Stock (including a fractional share interest in U.S. Filter Common Stock
  deemed received and redeemed as described below) received by a Holder will
  be the same as the aggregate adjusted tax basis of the shares of Puro
  Common Stock exchanged therefor;
 
    (iii) the holding period of shares of U.S. Filter Common Stock (including
  the holding period of a fractional share interest in U.S. Filter Common
  Stock) received by a Holder will include the holding period of the Puro
  Common Stock exchanged therefor, provided that such shares of Puro Common
  Stock are held as capital assets at the Effective Time; and
 
    (iv) a Holder of Puro Common Stock who receives cash in lieu of a
  fractional share interest in U.S. Filter Common Stock will be treated as
  having received such fractional share interest and then as having received
  the cash in redemption of such fractional share interest. Under Section 302
  of the Code, if such deemed distribution is "substantially
  disproportionate" with respect to the Holder or is "not essentially
  equivalent to a dividend" after giving effect to the constructive ownership
  rules of the Code, the Holder generally will recognize capital gain or loss
  equal to the difference between the amount of cash received and the
  Holder's adjusted tax basis in the fractional share interest. Under these
  rules, a minority stockholder of Puro generally should recognize capital
  gain or loss on the receipt of cash in lieu of a fractional share interest
  in U.S. Filter Common Stock.
 
  The obligation of U.S. Filter and Puro to consummate the Merger is
conditioned on the receipt of an opinion of U.S. Filter's counsel, Kirkpatrick
& Lockhart LLP, dated as of the Effective Time, substantially to the effect
that the Merger will be treated for United States federal income tax purposes
as a reorganization within the meaning of Section 368(a) of the Code. The
opinion of Kirkpatrick & Lockhart LLP referred to in this paragraph will be
based upon certain facts, assumptions and representations and/or covenants,
including those contained in certificates of officers of U.S. Filter, Puro
and, possibly, others. Subject to the receipt of such representations and/or
covenants, Kirkpatrick & Lockhart LLP anticipates that it will render such
opinion. If such opinion is not received, the Merger will not be consummated
unless the conditions requiring its receipt are waived and the approval of the
Puro stockholders is resolicited by means of an updated Proxy
Statement/Prospectus. U.S. Filter and Puro currently anticipate that such
opinion will be delivered and that neither U.S. Filter nor Puro will waive the
conditions requiring receipt of such opinions.
 
REGULATORY APPROVALS
 
  Under the HSR Act and the rules promulgated thereunder, the Merger cannot be
consummated until notifications have been given and certain information has
been furnished to the FTC and the Antitrust Division and specified waiting
period requirements have been satisfied. U.S. Filter and Puro filed
notification and report forms under the HSR Act with the FTC and the Antitrust
Division on October 28, 1997. The required waiting period under the HSR Act
expires on November 27, 1997, unless a request for additional information is
received
 
                                      23
<PAGE>
 
prior to that date. At any time before or after consummation of the Merger,
the FTC or the Antitrust Division could take such action under applicable
antitrust laws as it deems necessary or desirable in the public interest,
including seeking to enjoin the consummation of the Merger or seeking
divestiture of substantial assets of Puro or U.S. Filter. At any time before
or after the Effective Time, and notwithstanding that the HSR Act waiting
period has expired, any state could take such action under applicable
antitrust laws as it deems necessary or desirable. Such action could include
seeking to enjoin consummation of the Merger or seeking divestiture of
businesses of Puro or U.S. Filter by U.S. Filter. Private parties may also
seek to take legal action under applicable antitrust laws under certain
circumstances.
 
  Based on information available to them, Puro and U.S. Filter believe that
the Merger will be effected in compliance with United States federal and state
antitrust laws. However, there can be no assurance that a challenge to the
consummation of the Merger on antitrust grounds will not be made or that, if
such a challenge were made, Puro and U.S. Filter would prevail.
 
RESALE RESTRICTIONS
 
  All shares of U.S. Filter Common Stock received by Puro stockholders in the
Merger will be freely transferable, except that shares of U.S. Filter Common
Stock received by persons who are deemed to be "affiliates" (as such term is
defined under the Securities Act) of Puro prior to the Merger may be resold by
them only in transactions permitted by the resale provisions of Rule 145
promulgated under the Securities Act or as otherwise permitted under the
Securities Act. The Merger Agreement requires Puro to deliver or cause to be
delivered to U.S. Filter from each of its affiliates an executed agreement to
the effect that such person will not offer, sell, transfer or otherwise
dispose of any of the shares of U.S. Filter Common Stock issued to such person
in or pursuant to the Merger unless (a) such sale, transfer or other
disposition has been registered under the Securities Act, (b) such sale,
transfer or other disposition is made in conformity with Rule 145 under the
Securities Act or (c) in the opinion of counsel, such sale, transfer or other
disposition is exempt from registration under the Securities Act.
 
  This Proxy Statement/Prospectus does not cover any resales of U.S. Filter
Common Stock received by affiliates of Puro upon consummation of the Merger,
and no person is authorized to make use of this Proxy Statement/Prospectus in
connection with any such resale.
 
NO APPRAISAL RIGHTS
 
  Under applicable Delaware corporate law, holders of Puro Common Stock are
not entitled to dissenters' appraisal rights in connection with the Merger.
 
 
                                      24
<PAGE>
 
               U.S. FILTER SELECTED CONSOLIDATED FINANCIAL DATA
 
  The selected consolidated financial data of U.S. Filter for each of the five
full fiscal years set forth below are derived from audited consolidated
financial statements of U.S. Filter. Each fiscal year of U.S. Filter is ended
March 31. The financial data as of and for the three months ended June 30,
1996 and 1997 are derived from unaudited consolidated financial statements of
U.S. Filter which, in the opinion of U.S. Filter, reflect all adjustments
(consisting principally of normal, recurring amounts) necessary for the fair
statement of the financial position and results of operations for the periods
presented and are not necessarily indicative of the results for any other
interim period or for the full fiscal year. This summary should be read in
conjunction with the financial statements and other financial information
included in documents incorporated herein by reference.
 
<TABLE>
<CAPTION>
                                                                            THREE MONTHS
                                FISCAL YEAR ENDED MARCH 31,(1)             ENDED JUNE 30,
                          ----------------------------------------------  ------------------
                          1993(2)   1994(3)  1995(4)  1996(5)   1997(7)    1996      1997
                          --------  -------  -------  -------  ---------  -------  ---------
                                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                       <C>       <C>      <C>      <C>      <C>        <C>      <C>
CONSOLIDATED STATEMENT
 OF OPERATIONS DATA:
Revenues................  $416,725  475,236  600,832  812,322  1,376,601  222,958    598,234
Cost of sales...........   326,618  376,441  463,959  606,226  1,026,248  163,806    450,427
                          --------  -------  -------  -------  ---------  -------  ---------
   Gross Profit.........    90,107   98,795  136,873  206,096    350,353   59,152    147,807
Selling, general and
 administrative
 expenses...............    84,058  101,153  108,826  160,714    261,859   44,481    109,351
Merger expenses:               --       --       --       --       5,581      --         --
                          --------  -------  -------  -------  ---------  -------  ---------
                            84,058  101,153  108,826  160,714    267,440   44,481    109,351
                          --------  -------  -------  -------  ---------  -------  ---------
   Operating income
    (loss)..............     6,049   (2,358)  28,047   45,382     82,913   14,671     38,456
Other income (expenses):
   Interest expense.....    (4,044)  (4,486)  (8,058) (15,212)   (22,585)  (4,536)    (8,859)
   Other................       915   (7,335)   1,280    4,979      3,350      602        925
                          --------  -------  -------  -------  ---------  -------  ---------
                            (3,129) (11,821)  (6,778) (10,233)   (19,235)  (3,934)    (7,934)
                          --------  -------  -------  -------  ---------  -------  ---------
   Income (loss) before
    income tax expense
    (benefit) and
    extraordinary
    items...............     2,920  (14,179)  21,269   35,149     63,678   10,737     30,522
Income tax expense
 (benefit)..............     1,237   (6,287)   6,002   13,182     17,481    3,043      9,796
                          --------  -------  -------  -------  ---------  -------  ---------
   Income (loss) before
    extraordinary
    items...............     1,683   (7,892)  15,267   21,967     46,197    7,694     20,726
Extraordinary items(2)..       864      --       --       --         --       --         --
                          --------  -------  -------  -------  ---------  -------  ---------
   Net income (loss)....  $  2,547   (7,892)  15,267   21,967     46,197    7,694     20,726
                          ========  =======  =======  =======  =========  =======  =========
Weighted average number
 of common shares
 outstanding............    22,367   25,904   29,763   43,688     60,324   51,480     80,653
PER COMMON SHARE
 DATA:(6)
Income (loss) before
 extraordinary items....  $   0.02    (0.33)    0.49     0.49       0.77     0.15       0.26
Extraordinary items(2)..      0.04      --       --       --         --       --         --
                          --------  -------  -------  -------  ---------  -------  ---------
Net income (loss).......  $   0.06    (0.33)    0.49     0.49       0.77     0.15       0.26
                          ========  =======  =======  =======  =========  =======  =========
CONSOLIDATED BALANCE
 SHEET DATA (END OF
 PERIOD):
Working capital.........  $ 70,258  108,602  126,417  138,652    471,597  152,669    478,673
Total assets............   241,652  377,893  508,083  904,337  2,228,328  915,493  2,439,861
Notes payable and long-
 term debt, including
 current portion........    36,220   33,858   61,916   60,736     31,968   64,005     49,382
Convertible subordinated
 debt...................       --    60,000  105,000  200,000    554,000  199,975    554,000
Shareholders' equity....   121,226  161,004  177,085  379,611  1,028,850  395,526  1,181,744
</TABLE>
 
 
                                      25
<PAGE>
 
  The historical consolidated financial data for the fiscal years ended March
31, 1993, 1994, 1995 and 1996 and the three months ended June 30, 1996 have
been restated to include the accounts and operations of Zimpro Environmental,
Inc. ("Zimpro"), Davis Water and Waste Industries, Inc. ("Davis") and Sidener
Supply Company ("Sidener") which were merged with U.S. Filter in May 1996,
August 1996 and March 1997, respectively, and accounted for as poolings of
interests. Separate results of operations of the combined entities for the
years ended March 31, 1993 through March 31, 1997 and the three months ended
June 30, 1996 and 1997 are presented below:
<TABLE>
<CAPTION>
                                                                         THREE MONTHS
                                FISCAL YEAR ENDED MARCH 31,(1)          ENDED JUNE 30,
                          --------------------------------------------- ----------------
                          1993(2)   1994(3)  1995(4) 1996(5)   1997(7)   1996     1997
                          --------  -------  ------- -------  --------- -------  -------
                                    (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                       <C>       <C>      <C>     <C>      <C>       <C>      <C>
REVENUES
U.S. Filter (as
 previously reported)...  $128,376  180,421  272,032 472,537  1,376,601 150,801  598,234
Zimpro..................    38,675   29,470   31,678  28,877        --      --       --
Davis...................   190,990  202,621  215,649 226,489        --   57,708      --
Sidener.................    58,684   62,724   81,473  84,419        --   14,449      --
                          --------  -------  ------- -------  --------- -------  -------
                          $416,725  475,236  600,832 812,322  1,376,601 222,958  598,234
                          ========  =======  ======= =======  ========= =======  =======
OPERATING INCOME (LOSS)
U.S. Filter (as
 previously reported)...  $    648   (4,874)  14,585  34,955     82,913  13,243   38,456
Zimpro..................     1,454   (1,687)   1,026  (5,200)       --      --       --
Davis...................     1,559    1,506    7,512  10,892        --    1,572      --
Sidener.................     2,388    2,697    4,924   4,735        --     (144)     --
                          --------  -------  ------- -------  --------- -------  -------
                          $  6,049   (2,358)  28,047  45,382     82,913  14,671   38,456
                          ========  =======  ======= =======  ========= =======  =======
NET INCOME (LOSS)
U.S. Filter (as
 previously reported)...  $     67   (2,541)   8,331  20,290     46,197   6,917   20,726
Zimpro..................       471   (1,513)     460  (6,732)       --      --       --
Davis...................       653   (5,340)   3,448   5,749        --    1,086      --
Sidener.................     1,356    1,502    3,028   2,660        --     (309)     --
                          --------  -------  ------- -------  --------- -------  -------
                          $  2,547   (7,892)  15,267  21,967     46,197   7,694   20,726
                          ========  =======  ======= =======  ========= =======  =======
NET INCOME (LOSS) PER
 COMMON SHARE:(6)
As previously reported..  $  (0.08)   (0.17)    0.34    0.54       0.77    0.15     0.26
As restated.............  $   0.06    (0.33)    0.49    0.49        --     0.15      --
</TABLE>
- --------
(1) The historical consolidated financial data for the fiscal years ended
    March 31, 1993 through March 31, 1996 have been restated to include the
    accounts and operations of Zimpro, Davis and Sidener, which were merged
    with U.S. Filter in May 1996, August 1996, and March 1997, respectively,
    and accounted for as poolings of interests.
(2) The fiscal year ended March 31, 1993 includes twelve months of results of
    Societe des Ceramiques Techniques, S.A., acquired April 1, 1992 and three
    months of The Permutit Company, Inc., a United States company acquired
    January 5, 1993, accounted for as purchases. The fiscal year ended March
    31, 1993 also includes extraordinary gains of $.4 million resulting from
    the forgiveness of debt in connection with the buyout of a capital lease
    obligation and $.5 million resulting from U.S. Filter's Davis subsidiary's
    adoption of SFAS No, 109, "Accounting for Income Taxes."
(3) The fiscal year ended March 31, 1994 includes four months of results of
    Ionpure Technologies Corporation and IP Holding Company ("Ionpure"),
    acquired December 1, 1993 and accounted for as a purchase. Selling,
    general and administrative expenses for the year ended March 31, 1994
    reflect four months of integration of Ionpure, certain charges totaling
    $2.4 million related to the rationalization of certain wastewater
    operations and write-off certain intangibles in U.S. Filter's Continental
    Penfield subsidiary
 
                                      26
<PAGE>
 
   totaling $3.7 million. In addition, the year ended March 31, 1994 includes a
   charge of $8.9 million to reflect a plan to shutdown and reorganize certain
   operations of Davis.
(4) The fiscal year ended March 31, 1995 includes the results of operations of
    Smogless S.p.A., Crouzat S.A., Sation S.A., Seral Erich Alhauser GmbH and
    the Cereflo ceramic product line from the dates of their respective
    acquisitions, accounted for as purchases.
(5) The fiscal year ended March 31, 1996 includes the results of operations of
    The Permutit Company Limited and The Permutit Company Pty Ltd., Interlake
    Water Systems, Arrowhead Industrial Water Inc. and Polymetrics Inc. from
    the dates of their respective acquisitions, accounted for as purchases.
    Selling, general and administrative expenses for the year ended March 31,
    1996 includes charges totaling $3.2 million related to the write-down of
    certain patents and equipment of Zimpro.
(6) Net income (loss) per common share amounts are after (i) dividends on the
    Series A Preferred Stock of $.7 million for the fiscal year ended March 31,
    1993, $.7 million for the fiscal year ended March 31, 1994, $.7 million for
    the fiscal year ended March 1995 and $.5 million for the fiscal year ended
    March 31, 1996 and (ii) accretion on the Series A Preferred Stock, a
    noncash accounting adjustment required by Securities and Exchange
    Commission Staff Accounting Bulletin No. 68 ("SAB 68"), in the amount of
    $.6 million for the fiscal year ended March 31, 1993. As of April 1, 1993
    the Company and the holder of the Series A Preferred Stock agreed to a
    fixed dividend of $.7 million per year on the Series A Preferred Stock
    eliminating the increasing rate and, therefore, the accretion of dividends
    pursuant to SAB 68. The Series A Preferred Stock was converted into shares
    of Common Stock in March 1996.
(7) The fiscal year ended March 31, 1997 includes the results of operations of
    The Utility Supply Group, Inc., WaterPro Supplies Corporation, the Water
    Systems and Manufacturing Group of Wheelabrator Technologies Inc., and the
    Process Equipment Division of United Utilities Plc from the dates of their
    respective acquisitions, accounted for as purchases. The year ended March
    31, 1997 also includes merger expenses of $5.6 million, related to the
    acquisition of Davis, which was accounted for as a pooling of interests.
 
                                       27
<PAGE>
 
                          PURO SUMMARY FINANCIAL DATA
 
  The summary financial information presented below for the period from
inception (February 1, 1994) through December 31, 1994 and as of December 31,
1996 and for the years ended December 31, 1995 and 1996 has been derived from
financial statements which have been audited by Arthur Andersen LLP,
independent public accountants, and are included elsewhere in this Prospectus.
The summary financial information as of June 30, 1997 and for the six months
ended June 30, 1996 and 1997 has been derived from unaudited financial
statements which have been prepared on the same basis as the audited financial
statements and, in the opinion of management, includes all adjustments of a
normal recurring nature necessary for the fair presentation of the information
shown therein. The results of operations for the six months ended June 30,
1997 are not necessarily indicative of the results that may be expected for
the full fiscal year. The information set forth below should be read in
conjunction with Puro's financial statements, including the notes thereto, and
"Puro Management's Discussion and Analysis of Financial Condition and Results
of Operations" included elsewhere in this Proxy Statement/Prospectus.
<TABLE>
<CAPTION>
                          PERIOD FROM
                           INCEPTION
                          (FEBRUARY 1,
                             1994)     FISCAL YEAR ENDED    SIX MONTHS ENDED
                            THROUGH       DECEMBER 31,          JUNE 30,
                          DECEMBER 31, -------------------  ------------------
                              1994       1995      1996       1996      1997
                          ------------ --------  ---------  --------  --------
                                (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                       <C>          <C>       <C>        <C>       <C>
STATEMENT OF OPERATIONS
 DATA:
 Revenue:
 Bottled water sales and
  other revenue.........     $2,918       4,175      8,441     4,011     4,853
 Rental revenue.........      1,136       1,326      2,186     1,052     1,054
                             ------    --------  ---------  --------  --------
  Total revenue.........      4,054       5,501     10,628     5,063     5,907
                             ------    --------  ---------  --------  --------
 Costs and expenses
 Costs of goods sold
  (excluding
  depreciation).........      1,147       1,616      3,506     1,318     2,082
 Operating expenses
  (excluding
  depreciation and
  amortization).........      1,197       1,306      1,899     1,070     1,556
 General and
  administrative
  expenses..............        948       1,309      2,172     1,497     1,037
                             ------    --------  ---------  --------  --------
  Total costs and
   expenses.............      3,292       4,231      7,577     3,885     4,675
                             ------    --------  ---------  --------  --------
 Depreciation and
  amortization:
 Cost of goods sold.....        106         237        531       244       296
 Operating expenses.....        113         214        461       202       263
                             ------    --------  ---------  --------  --------
  Total depreciation and
   amortization.........        219         451        992       446       559
                             ------    --------  ---------  --------  --------
 Income from
  operations............        543         819      2,059       732       673
                             ------    --------  ---------  --------  --------
 Other income (expense):
 Interest expense.......       (130)       (303)      (764)     (330)     (237)
 Other income
  (expense).............         47         119         28         4        64
 Plant relocation
  charges (1)...........        --          --        (250)      --        --
                             ------    --------  ---------  --------  --------
  Total other expense...        (83)       (184)      (985)     (326)     (173)
                             ------    --------  ---------  --------  --------
 Income before provision
  for income taxes......        460         635      1,073       406       501
 Provision for income
  taxes.................        204         231        446       170       200
                             ------    --------  ---------  --------  --------
 Net income.............     $  256         404        627       236       300
                             ======    ========  =========  ========  ========
 Earnings per share
  (2)...................     $ 0.14        0.21       0.28      0.11      0.09
                             ======    ========  =========  ========  ========
 Weighted average common
  shares outstanding
  (2)...................      1,843       1,928      2,238     2,238     3,289
                             ======    ========  =========  ========  ========
 Pro forma net income
  (3)...................                      7
                                       ========
 Pro forma earnings per
  share.................                   0.00
                                       ========
 Pro forma weighted
  average common shares
  outstanding...........                  1,928
                                       ========
</TABLE>
 
                                      28
<PAGE>
 
<TABLE>
<CAPTION>
                                                           DECEMBER 31, JUNE 30,
                                                               1996       1997
                                                           ------------ --------
                                                              (IN THOUSANDS)
<S>                                                        <C>          <C>
BALANCE SHEET DATA:
 Cash.....................................................   $   217        388
 Working capital (deficit)................................    (2,549)     1,681
 Total assets.............................................    17,793     17,549
 Long-term debt...........................................     5,903      2,702
 Total stockholders' equity...............................     4,643     11,029
</TABLE>
- --------
(1) Represents non-recurring charges of $250,000 related to the closing of two
    of Puro's bottling plants and the relocation of such production facilities
    to Puro's Commack, Long Island, New York and East Orange, New Jersey
    facilities.
(2) See Notes 2 and 14 of Puro Notes to Financial Statements appearing
    elsewhere herein.
(3) The pro forma statement of operations data for the year ended December 31,
    1995 gives effect to the purchase of Electrified as if it had occurred as
    of January 1, 1995. The effects of this transaction are set forth below.
 
  (i) Reflects the increase of intangible assets as a result of the purchase
      and an increase in the corresponding amortization expense of $272,000
      for the year ended December 31, 1995.
  (ii) Reflects the increase in interest expense of $342,000 as a result of
       the issuance of notes payable to the sellers of Electrified.
  (iii) Income taxes have been decreased by $614,000 to reflect the
        adjustments described in (i) and (ii) above.
 
                                      29
<PAGE>
 
       PURO MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                           AND RESULTS OF OPERATIONS
 
  This section contains forward-looking statements that involve risks and
uncertainties. Puro's actual results may differ significantly from the results
discussed in the forward-looking statements. The following discussion and
analysis should be read in conjunction with Puro's Financial Statements and
the Notes thereto included elsewhere in this Proxy Statement/Prospectus.
 
GENERAL BACKGROUND
 
  Puro is a leading bottler and distributor of spring and purified drinking
water, serving commercial and residential users in the metropolitan New York
area. Puro also rents and services water coolers, filtration systems, and
plumbed-in fountains located in businesses, factories, and homes in the
metropolitan New York area.
 
  Puro was formed in January 1994 and represents the acquisition of LSL Hydro
Corp. and Puro Corporation of America. Subsequently, Puro has acquired 11
additional distributors of high quality drinking water in the New York City,
New Jersey and Long Island markets. Since 1994, Puro has grown from
approximately 5,000 water customers to in excess of 25,000.
 
  Puro's strategy is to capitalize on the growing demand for high quality
drinking water through the expansion of its existing customer base and through
the acquisition of regional water bottlers and distributors in targeted
geographic markets. Puro's acquisition of Electrified's modern high-speed
production facility enables it to absorb new bottling demand without a
commensurate increase in production costs. Similarly, the new bottling
facility in Commack, Long Island, New York can absorb additional volume with
minimum incremental cost. In addition, management continually seeks to grow
revenues by increasing route density through the acquisition and consolidation
of new routes within its existing route structure, thereby minimizing
distribution and administration costs. The continued consolidation of
production and distribution capabilities is a key component of Puro's
operating plans, both within its current markets and any additional markets it
may enter.
 
RESULTS OF OPERATIONS
 
  Puro derives its revenues from two major sources: bottled water sales and
the rental and service of water coolers, filtration systems and plumbed-in
fountains. While most other bottled water companies sell only pre-packaged
bottled water, Puro also rents water treatment equipment which processes and
dispenses drinking water at the point of use which enables the consumer to
enjoy quality drinking water with reduced contaminants.
 
  Additionally, in contrast to most other water treatment dealers and
distributors that have historically sold their water treatment equipment
outright, Puro creates long-term relationships with its own customers by
renting or placing the equipment under lease/service agreements. These
agreements result in revenue streams which provide Puro with a base of
recurring revenue.
 
 
                                      30
<PAGE>
 
  The following table sets forth, for the periods indicated, the percentage
relationship to total revenues of certain items included in Puro's Statement
of Operations:
 
<TABLE>
<CAPTION>
                          PERIOD FROM
                           INCEPTION                               SIX      SIX
                         (FEBRUARY 1,                             MONTHS   MONTHS
                         1994) THROUGH  YEAR ENDED   YEAR ENDED   ENDED    ENDED
                         DECEMBER 31,  DECEMBER 31, DECEMBER 31, JUNE 30, JUNE 30,
                             1994          1995         1996       1996     1997
                         ------------- ------------ ------------ -------- --------
<S>                      <C>           <C>          <C>          <C>      <C>
Revenue:
  Bottled water sales
   and other revenue....      72.0%        75.9%        79.4%      79.2%    82.2%
  Rental Revenue........      28.0         24.1         20.6       20.8     17.8
                             -----        -----        -----      -----    -----
    Total Revenue.......     100.0%       100.0%       100.0%     100.0%   100.0%
                             -----        -----        -----      -----    -----
Costs and Expenses:
  Cost of goods sold
   (excluding
   depreciation)........      28.3         29.4         33.0       26.0     35.3
  Operating expenses
   (excluding
   depreciation and
   amortization)........      29.5         23.7         17.9       21.1     26.3
  General and
   administrative
   expenses.............      23.4         23.8         20.4       29.6     17.6
                             -----        -----        -----      -----    -----
    Total Costs and
     Expenses...........      81.2         76.9         71.3       76.7     79.2
                             -----        -----        -----      -----    -----
Depreciation and
 Amortization:
  Cost of goods sold....       2.6          4.3          5.0        4.8      5.0
  Operating expenses....       2.8          3.9          4.3        4.0      4.4
                             -----        -----        -----      -----    -----
    Total Depreciation
     and Amortization...       5.4          8.2          9.3        8.8      9.4
                             -----        -----        -----      -----    -----
  Income from
   operations...........      13.4         14.9         19.4       14.5     11.4
Other income (expense):
  Interest expense......      (3.2)        (5.5)        (7.2)      (6.5)    (2.9)
  Other income
   (expense)............       1.1          2.2          0.3        0.0      1.1
  Plant relocation
   charges (1)..........       0.0          0.0         (2.4)       0.0      0.0
                             -----        -----        -----      -----    -----
    Total other
     expense............      (2.1)        (3.3)        (9.3)      (6.5)    (1.8)
                             -----        -----        -----      -----    -----
Income before provision
 for income taxes.......      11.3         11.6         10.1        8.0      8.5
Provision for income
 taxes..................       5.0          4.2          4.2        3.4      3.4
                             -----        -----        -----      -----    -----
Net income..............       6.3%         7.4%         5.9%       4.7%     5.1%
                             =====        =====        =====      =====    =====
</TABLE>
- --------
(1) Represents non-recurring charges of $250,000 related to the closing of two
    of Puro's bottling plants and the relocation of such production facilities
    to Puro's Commack, Long Island, New York and East Orange, New Jersey
    facilities.
 
 Quarter ended June 30, 1996 and Quarter ended June 30, 1997
 
  In the quarter ended June 30, 1997, Puro purchased the routes and related
assets of Savoy Refreshment Services, Inc. d/b/a Dial Refreshment Services,
Ozone Water Company, and American Water Group, Inc. d/b/a Virgin Springs.
Estimated annual revenues of these operations are $885,000. On June 30, 1997,
Puro also sold its 23,000 square foot Maspeth, New York bottling facility and
leased 7,500 square foot premises in the area for sales, distribution, cooler
repair, and executive offices.
 
  Revenues. Revenues for the quarter ended June 30, 1997 increased by 12% to
$3.1 million from $2.8 million for the quarter ended June 30, 1996. This
increase in revenues reflects increases in both five gallon and and case goods
sales from the Commack and East Orange plants as well as the office
refreshment sales of the Dial Refreshment division acquired in April. Revenues
for the six months ended June 30, 1997 increased 16.7% to $5.9 million from
$5.1 million for the six months ended June 30, 1996.
 
                                      31
<PAGE>
 
  Cost of Goods Sold. Cost of goods sold (excluding depreciation) for the
quarter ended June 30, 1997 increased by 62.3% to $1.1 million from $0.7
million for the quarter ended June 30, 1996. This increase results principally
from the increase in total water revenues. Cost of goods sold (excluding
depreciation) as a percentage of revenues for the quarter ended June 30, 1997
increased to 35.3% from 24.3% for the same period in 1996. This reflects an
increase in the amount of water sales of one gallon case goods from Puro's
American Eagle bottling facility and the higher cost of goods associated with
office coffee services from the Dial acquisition. Cost of goods sold
(excluding depreciation) as a percentage of revenues for the six months ended
June 30, 1997 increased to 35.3% from 26.0% for the same period in 1996.
 
  Operating Expenses. Operating expenses (excluding depreciation and
amortization) for the quarter ended June 30, 1997 increased by 75.6% to $0.9
million from $0.5 million for the quarter ended June 30, 1996. This increase
reflects the increase in total revenues. Operating expenses (excluding
depreciation and amortization) increased as a percentage of revenues to 28.6%
for the quarter ended June 30, 1997 from 18.2% for the same period in 1996.
This increase reflects additional delivery commissions, temporary help, salary
expense, and route setup and consolidation efforts associated with the
acquisition Dial, Ozone and Virgin Springs. Operating expenses (excluding
depreciation and amortization) as a percentage of revenues for the six months
ended June 30, 1997 increased to 26.3% from 21.1% for the same period in 1996.
 
  General and Administrative Expenses. General and administrative expenses for
the quarter ended June 30, 1997 decreased by 36.3% to $0.5 million from $0.8
million for the quarter ended June 30, 1996. General and administrative
expenses decreased as a percentage of revenues to 16.1 % for the quarter ended
June 30, 1997 from 28.2% for the same period in 1996. This decrease reflects a
portion of the bottling plant relocation charges incurred in 1996 and
efficiencies gained from consolidation of office and clerical staffing, and
was achieved notwithstanding increased expenses incurred in connection with
Puro's status as a public company. General and administrative expenses as a
percentage of revenues for the six months ended June 30, 1997 decreased to
17.6% from 29.6% for the same period in 1996.
 
  Total Depreciation and Amortization. Total depreciation and amortization for
the quarter ended June 30, 1997 increased by 16.7% to $0.3 million from $0.2
million for the quarter ended June 30, 1996. Total depreciation and
amortization rose as a percentage of revenues to 9.0% for the quarter ended
June 30, 1997 from 8.6% for the same period in 1996. This increase results
primarily from the Electrified acquisition and the opening of a new bottling
facility in Commack, New York. Total depreciation and amortization as a
percentage of revenues for the six months ended June 30, 1997 increased to
9.4% from 8.8% for the same period in 1996.
 
  Income from Operations. Decreases in income from operations for the period
discussed above relate to increases in sales, the cost of consolidation of
routes, the higher cost of goods sold in the office refreshment division, and
the decrease in general and administrative expenses.
 
  Interest Expense. Interest expense for the quarter ended June 30, 1997
decreased by 53.0% to $0.09 million from $0.19 million for the quarter ended
June 30, 1996. Interest expense decreased as a percentage of revenues to 2.9%
for the quarter ended June 30, 1997 from 6.4% for the same period in 1996.
This reflects the use of proceeds from Puro's Initial Public Offering
available in late February 1997 to reduce $5.2 million of indebtedness
incurred in connection with Puro's acquisitions.
 
 
 The Period From Inception (February 1, 1994) To December 31, 1994, Year Ended
 December 31, 1995 and Year Ended December 31, 1996
 
  Revenues. Revenues for the year ended December 31, 1996 increased by 93% to
$10.6 million from $5.5 million for the year ended December 31, 1995. This
increase in revenues reflects the acquisition of Electrified's operations in
East Orange, New Jersey for eleven of the twelve months ended December 31,
1996 and the acquisition of the five-gallon routes from Mountainwood for the
six months beginning July 1, 1996 through December 31, 1996. Moreover, this
increase occurred notwithstanding an abnormally harsh winter in 1996 evidenced
by a record snow fall and unusually cold spring and summer seasons during the
same year. This factor
 
                                      32
<PAGE>
 
is even more significant when considering the significantly higher than normal
temperatures experienced in the summer of 1995. Revenues in 1995 increased by
34% to $5.5 million from $4.1 million in the period from inception (February
1, 1994) to December 31, 1994. The growth in revenues was attributable to the
increase in the number of coolers in operation as well as the acquisition of
smaller distributors in Puro's market area.
 
  Cost of Goods Sold. Cost of goods sold (excluding depreciation) for the year
ended December 31, 1996 increased to $3.5 million from $1.6 million, or 118%
over that incurred in 1995. This increase results principally from increases
in volume relating to the acquisitions referred to previously. Cost of goods
sold (excluding depreciation) as a percentage of revenues for the year ended
December 31, 1996 increased to 33% from 29% for the same period in 1995. The
increase reflects entry into the case goods product market which is
traditionally a more costly product due to packaging. Cost of goods sold
(excluding depreciation) increased by 45% to $1.6 million in 1995 from $1.1
million in the period from inception (February 1, 1994) to December 31, 1994.
Cost of goods sold (excluding depreciation) increased as a percentage of
revenues to 29% in 1995 from 28% in the period from inception (February 1,
1994) to December 31, 1994. This increase is reflective of the trend to a
higher percentage of natural spring water sold compared to processed drinking
water.
 
  Operating Expenses. Operating expenses (excluding depreciation and
amortization) increased by 46% to $1.9 million for the year ended December 31,
1996 from $1.3 million for the year ended December 31, 1995. The increase
reflects the acquisition of Electrified's operations for eleven of the twelve
months ended December 31, 1996, and the acquisition of Mountainwood's delivery
routes for the six months from July 1, 1996 through December 31, 1996.
However, operating expenses (excluding depreciation and amortization)
decreased as a percentage of revenues to 18% for the year ended December 31,
1996 compared to 24% from the year ended December 31, 1995. This decrease was
also due primarily to the efficiencies achieved in Puro's bottling operations,
route delivery and servicing system. It was also reflective of entry into the
case goods product market, delivery costs of which are less intensive than the
five gallon market. Operating expenses (excluding depreciation and
amortization) increased by 8% to $1.3 million in 1995 from $1.2 million in the
period from inception (February 1, 1994) to December 31, 1994. However,
operating expenses (excluding depreciation and amortization) decreased as a
percentage of revenues to 24% in 1995 from 30% for the period from inception
(February 1, 1994) to December 31, 1994. This decrease was due to efficiencies
achieved in Puro's bottling operations, route delivery and servicing system--
primarily from the addition of new accounts in existing market areas.
 
  General and Administrative Expenses. General and administrative expenses
increased by 69% to $2.2 million in the year ended December 31, 1996 from $1.3
million for the same period in 1995 due to the acquisitions referred to above.
However, such expenses decreased as a percentage of revenues to 20% for the
year ended December 31, 1996 from 24% for the same period in 1995. This
decrease in general and administrative expenses reflects efficiencies gained
from the Electrified and Mountainwood transactions with respect to office and
clerical staffing. General and administrative expenses increased by 44% to
$1.3 million in 1995 from $0.9 million in the period from inception (February
1, 1994) to December 31, 1994. General and administrative expenses increased
as a percentage of revenues to 24% in 1995 from 23% in the period from
inception (February 1, 1994) to December 31, 1994. This increase was the
result of increased insurance costs associated with an increase in the number
of Puro's delivery vehicles.
 
  Total Depreciation and Amortization. Total depreciation and amortization for
the year ended December 31, 1996 increased by 100% to $1.0 million from $0.5
million for the same period in 1995. Total depreciation and amortization
increased as a percentage of revenues to 9% for the year ended December 31,
1996 from 8% for the same period in 1995. This increase resulted primarily
from the Electrified acquisition, which included a modern high-capacity
bottling facility and the opening of a new bottling facility in Commack, Long
Island, New York. Total depreciation and amortization increased by 150% to
$0.5 million in 1995 from $0.2 million in the period from inception (February
1, 1994) to December 31, 1994. Total depreciation and amortization increased
as a percentage of revenues to 8% from 5% in the period from inception
(February 1, 1994) to December 31, 1994. This increase was due primarily to
Puro's continued investment in new coolers and route acquisitions.
 
 
                                      33
<PAGE>
 
  Income From Operations. Increases in income from operations for all periods
discussed above relate to increases in sales, the consolidation of production
facilities and an improvement in route densities and scheduling.
 
  Interest Expense. For the year ended December 31, 1996, interest expense
increased by 167% to $0.8 million for the same period in 1995. Interest
expense increased as a percentage of revenues to 7% for the year ended
December 31, 1996 from 6% for the same period in 1995. This increase was due
to additional borrowings in connection with the acquisitions discussed
previously. Approximately $5.3 million of the $10.0 million total debt
outstanding at December 31, 1996 was repaid with proceeds from Puro's initial
public offering as further discussed below. Interest expense increased by 200%
to $0.3 million in 1995 from $0.1 million in the period from inception
(February 1, 1994) to December 31, 1994. Interest expense increased as a
percentage of revenues to 6% in 1995 from 3% in the period from inception
(February 1, 1994) to December 31, 1994. This increase was primarily due to
increased borrowing in order to fund Puro's expansion.
 
  Plant Relocation Charges. During the year ended December 31, 1996, Puro
relocated all bottled water production from its plants in Maspeth, New York,
and Port Jefferson, New York, to the Electrified facility in East Orange, New
Jersey, and the newly opened bottling plant in Commack, Long Island, New York.
The Maspeth and Port Jefferson bottling plants were subsequently closed. Non-
recurring plant relocation charges of $0.3 million or 2% of revenues for the
period ended December 31, 1996 were incurred.
 
  Provision for Income Taxes. The effective income tax rate was 42% for the
year ended December 31, 1996 and 36% for the year ended December 31, 1995. The
increase in the effective rate in 1996 is primarily attributable to non-
recurring write-offs of certain accounts receivable for income tax purposes in
1995.
 
LIQUIDITY AND CAPITAL RESOURCES
 
  Puro's primary sources of liquidity and capital resources have been cash
flow from operations, proceeds from the sale of equity securities to Puro's
current stockholders, purchase money financing for business acquisitions and
borrowings under Puro's bank agreement described below.
 
  In February 1997, Puro completed an initial public offering of 1,350,000
shares of common stock raising net proceeds of $6.1 million. Puro used
substantially all of the proceeds to retire $5.4 million of debt related
primarily to the acquisitions referred to below. As a result of the offering,
Puro is now able to borrow an additional $1.5 million under its bank
agreement.
 
  During the quarter ended June 30, 1997 net cash provided by operating
activities was $0.02 million, and net cash used by operating activities for
the six months ended June 30, 1997 was $0.4 million. During the quarter ended
June 30, 1997 Puro used $0.6 million to purchase capital equipment, and for
the six months ended June 30, 1997 cash used to purchase capital equipment was
$0.8 million. The sale of the Maspeth building generated net cash of $0.03
million after mortgage retirement and expenses. Cash at the end of the period
was $0.4 million.
 
  During 1996 and 1995, net cash provided by operating activities was $0.7
million and $0.4 million, respectively. During 1996, Puro made capital
expenditures in the amount of $2.8 million. In addition, Puro acquired the net
assets of two of its competitors whose aggregate purchase price was $5.5
million. The equipment purchases and the acquisitions were funded by
operations as well as seller financing. In 1995, Puro made capital
expenditures for coolers, other equipment and routes aggregating $2.8 million,
which was funded by cash from operations, private equity placement, purchase
money financing of business acquisitions and borrowings under Puro's bank
agreement.
 
  At December 31, 1996, cash totaled $0.2 million and no additional borrowing
was available under Puro's bank agreement. As of December 31, 1995, cash
totaled $0.7 million, and approximately $1.0 million of additional borrowings
were available under Puro's bank agreement.
 
  Puro's bank agreement provides for aggregate long-term borrowings of up to
$3.0 million, approximately all of which was currently outstanding as of
December 31, 1996, maturing between May 31, 1997 and December
 
                                      34
<PAGE>
 
31, 2001, bearing interest at prime plus .25%-.50% per annum, secured by
substantially all of the assets of Puro and guaranteed by certain stockholders
of Puro. Puro has also borrowed $0.5 million from the same lender under
another agreement. These borrowings are also secured by certain stockholders
of Puro and were used for the acquisitions referred to above. In addition, the
bank agreement contains covenants that include requirements to maintain
certain working capital, debt coverage and other financial ratios and
restrictions and limitations on the payment of dividends, guaranty payments,
additional borrowings and the amount of compensation paid to employees who are
stockholders.
 
  Puro's continued success is dependent upon the maintenance of its delivery
truck fleet and bottling equipment and its access to water sources. These
activities are currently funded through operations and bank financing. Puro
believes that it has sufficient sources of funding to achieve its business
objectives in the future.
 
 
                                      35
<PAGE>
 
                             THE MERGER AGREEMENT
 
  Following is a brief summary of certain provisions of the Merger Agreement,
a copy of which is attached as Annex A to this Proxy Statement/Prospectus and
is incorporated herein by reference. Such summary is qualified in its entirety
by reference to the Merger Agreement. Stockholders of Puro are urged to read
the Merger Agreement in its entirety for a more complete description of the
Merger.
 
THE MERGER
 
  The Merger Agreement provides that, following the approval and adoption of
the Merger Agreement and the transactions contemplated thereby by the
stockholders of Puro and the satisfaction or waiver of the other conditions to
the Merger, Sub will be merged with and into Puro, whereupon Puro will become
a wholly owned subsidiary of U.S. Filter.
 
  If all such conditions to the Merger are satisfied or waived, the Merger
will become effective upon the filing of a duly executed certificate of merger
with the Secretary of State of the State of Delaware, or at such time
thereafter as is provided in the certificate of merger.
 
  At the Effective Time the Articles of Incorporation of Puro, the continuing
corporation, as in effect immediately prior to the Effective Time will be
amended and restated in their entirety to read as set forth in an exhibit to
the Merger Agreement. The By-Laws of Puro as in effect immediately prior to
the Effective Time will be the By-Laws of the continuing corporation. The
directors and officers of Sub immediately prior to the Effective Time will,
from and after the Effective Time, be the directors and officers,
respectively, of the continuing corporation until their successors are duly
elected or appointed or until their earlier death, resignation or removal.
 
CONVERSION OF PURO COMMON STOCK
 
  Upon consummation of the Merger, pursuant to the Merger Agreement, Sub will
be merged with and into Puro and each issued and outstanding share of Puro
Common Stock (other than shares held in Puro's treasury immediately prior to
the Effective Time, all of which will be canceled) will be converted on the
basis of the Exchange Ratio into the right to receive a fraction of a share of
U.S. Filter Common Stock.
 
  Neither certificates nor scrip for fractional shares of U.S. Filter Common
Stock will be issued in the Merger, but in lieu thereof each holder of Puro
Common Stock otherwise entitled to a fraction of a share of U.S. Filter Common
Stock will be entitled to receive a cash payment. The amount of such cash
payment will be equal, in the case of each fractional share, to an amount,
without interest, calculated as the product of (i) such fraction, multiplied
by (ii) the closing per share sale price of U.S. Filter Common Stock on the
New York Stock Exchange Composite Tape for the day of the Effective Time. No
U.S. Filter stock split or dividend will relate to any fractional share
interest, and no such fractional share interest will entitle the owner thereof
to vote or to any rights of a stockholder of U.S. Filter.
 
  Promptly after the Effective Time, the Exchange Agent will mail transmittal
forms and exchange instructions to each holder of record of Puro to be used to
surrender and exchange certificates evidencing shares of Puro Common Stock for
certificates evidencing the shares of U.S. Filter Common Stock to which such
holder has become entitled. After receipt of such transmittal forms, each
holder of certificates formerly representing Puro Common Stock will be able to
surrender such certificates to the Exchange Agent, and each such holder will
receive in exchange therefor certificates evidencing the number of shares of
U.S. Filter Common Stock to which such holder is entitled and cash in lieu of
fractional shares as indicated above. Such transmittal forms will be
accompanied by instructions specifying other details of the exchange. PURO
STOCKHOLDERS SHOULD NOT SEND IN THEIR CERTIFICATES UNTIL THEY RECEIVE A
TRANSMITTAL FORM.
 
  After the Effective Time, each certificate evidencing Puro Common Stock,
until so surrendered and exchanged, will be deemed, for all purposes, to
evidence only the right to receive the number of shares of U.S.
 
                                      36
<PAGE>
 
Filter Common Stock (and cash in lieu of fractional shares) which the holder
of such certificate is entitled to receive, without interest. The holder of
such unexchanged certificate will not be entitled to receive any dividends or
other distributions payable by U.S. Filter until the certificate has been
exchanged. Following such exchange, such dividends or other distributions will
be paid to the holder entitled thereto, without interest.
 
EMPLOYEE AND DIRECTOR STOCK OPTIONS
 
  At the Effective Time, each outstanding and unexercised Employee or Director
Stock Option to purchase shares of Puro Common Stock, issued by Puro, whether
or not then exercisable in accordance with its terms, will be converted into
options to purchase the same number of shares of U.S. Filter Common Stock as
the holder of such employee or director stock option would have been entitled
to receive pursuant to the Merger had such holder exercised such option in
full immediately prior to the Effective Time, at a price per share equal to
(y) the aggregate exercise price for the shares of Puro Common Stock deemed
otherwise purchasable pursuant to such Employee or Director stock option
divided by (z) the number of full shares of U.S. Filter Common Stock deemed
purchasable pursuant to such Employee or Director stock option; provided,
however, that, in the case of any Employee Stock Option to which Section 421
of the Code applies by reason of its qualification under any of Sections 422-
424 of the Code ("qualified stock options"), the option price, the number of
shares purchasable pursuant to such option and the terms and conditions of
exercise of such option shall be determined in order to comply with Section
425(a) of the Code.
 
OTHER OPTIONS
 
  At the Effective Time, each of the Guarantee Options, the Edberg Option and
an option held by Glenn Downing to purchase 22,500 shares of Puro Common Stock
at an exercise price of $5.40 per share, issued in connection with Puro's
acquisition of Downmorr Water Corporation (the "Downing Option" and together
with the Guarantee Options and the Edberg Option, the "Non-Plan Options"),
whether or not exercisable, shall be deemed to constitute an option to
acquire, on the same terms and conditions as were applicable under each
respective Non-Plan Option, the same number of shares of U.S. Filter Common
Stock as the holder of such Non-Plan Option would have been entitled to
receive pursuant to the Merger had such holder exercised such option in full
immediately prior to the Effective Time, at a price per share equal to (y) the
aggregate exercise price for the shares of Puro Common Stock deemed otherwise
purchasable pursuant to such Non-Plan Option divided by (z) the number of full
shares of U.S. Filter Common Stock deemed purchasable pursuant to such Non-
Plan Option.
 
UNDERWRITERS' WARRANTS
 
  At the Effective Time, the Underwriters' Common Stock Purchase Warrants
dated as of February 7, 1997 (the "Underwriters' Warrants") shall be deemed to
constitute the right to acquire, on the same terms and conditions as were
applicable under such Underwriters' Warrants, the same number of shares of
U.S. Filter Common Stock as the holders of such Underwriters' Warrants would
have been entitled to receive pursuant to the Merger had such holders
exercised such Underwriters' Warrants in full immediately prior to the
Effective Time, at an exercise price per share equal to (y) the aggregate
exercise price for the shares of Puro Common Stock deemed otherwise
purchasable pursuant to such Underwriters' Warrants divided by (z) the number
of full shares of U.S. Filter Common Stock deemed purchasable pursuant to such
Underwriters' Warrants.
 
CONVERTIBLE NOTES
 
  At the Effective Time, the Variable Promissory Notes issued in connection
with the acquisitions of Bark Water Co. Ltd. and Downmorr Water Corporation
and convertible into shares of Puro Common Stock (the "Convertible Notes")
will be deemed to be convertible, on the same terms and conditions as were
applicable under each respective Convertible Note, into the same number of
shares of U.S. Filter Common Stock as the holders of such Convertible Notes
would have been entitled to receive pursuant to the Merger had such holders
converted such Convertible Notes in full immediately prior to the Effective
Time, at an aggregate conversion price per share equal to (y) the aggregate
conversion price for the shares of Puro Common Stock deemed
 
                                      37
<PAGE>
 
otherwise purchasable pursuant to such Convertible Notes divided by (z) the
number of full shares of U.S. Filter Common Stock deemed purchasable pursuant
to such Convertible Notes.
 
REPRESENTATIONS AND WARRANTIES
 
  The Merger Agreement contains representations and warranties of Puro, on the
one hand, and U.S. Filter and Sub, on the other, which are customary in
transactions of this type, relating to, among other things, (a) the corporate
organization, qualification and capitalization of Puro and of U.S. Filter and
Sub and certain similar corporate matters; (b) the authorization, execution,
delivery and enforceability of the Merger Agreement and the consummation of
the transactions contemplated thereby and related matters; (c) required
governmental filings and absence of violations under charters, bylaws, and
certain instruments and laws; (d) documents and financial statements filed by
each of Puro and U.S. Filter with the Commission and the accuracy of
information contained therein; (e) the absence of certain material adverse
changes or events; (f) litigation and (g) the accuracy of information supplied
by each of Puro and U.S. Filter in connection with the Registration Statement
and this Proxy Statement/Prospectus.
 
  Puro has made representations and warranties with respect to, among other
things, its equity interests in subsidiaries; indebtedness; tax matters;
certain "related party" transactions; compliance with laws; required
authorizations; agreements, contracts and commitments; insurance; real
property; personal property; intellectual property rights; environmental
matters; products liability; insurance; employment and change of control
agreements; labor relations; employee benefit plans; certain accounting
matters and; brokers and finders fees. In addition, U.S. Filter and Sub have
made certain representations and warranties with respect to the interim
operation of Sub.
 
  Each of the representations and warranties of Puro, U.S. Filter and Sub in
the Merger Agreement will terminate upon consummation of the Merger.
 
CERTAIN COVENANTS
 
  Pursuant to the Merger Agreement, Puro has agreed that, during the period
from the date of the Merger Agreement until the earlier of the termination of
the Merger Agreement in accordance with its terms or the Effective Time,
except as consented to in writing by U.S. Filter, it will, with certain
exceptions: (a) preserve and maintain its corporate existence; (b) not acquire
any stock or other interest in any corporation or similar entity; (c) not
sell, lease, assign, transfer or otherwise dispose of any of its assets, nor
create any mortgage, security interest or other lien thereon, except in the
ordinary course of business and except for any assets which are obsolete; (d)
not incur any indebtedness for borrowed money or any obligation under any
guarantee except for certain indebtedness which may be incurred under Puro's
existing bank loan agreement only for working capital purposes; (e) not (i)
alter, amend or repeal any provision of its articles or certificate of
incorporation or bylaws; (ii) change the number or identity of its directors
(other than as a result of the death, retirement or resignation of a
director); (iii) form or acquire any subsidiaries; (iv) except in the ordinary
course of business, enter into, modify or terminate any material contract or
agreement to which it is a party or agree to do so; (v) modify any employment
agreements; or (vi) incur any obligation for the payment of any bonus,
additional salary or compensation or retirement, termination, welfare or
severance benefits payable or to become payable to any of its employees or
other persons, except in any such case for obligations incurred pursuant to
the terms of any existing employment agreement or benefit plan; (f) maintain
its books, accounts and records in the usual, ordinary and regular manner; (g)
pay and discharge all Taxes imposed upon it or upon its income or profits,
prior to the date on which penalties attach thereto, except to the extent that
Puro is currently contesting, in good faith, the payment of such Taxes and
Puro maintains appropriate reserves with respect thereto; (h) not settle any
tax claim against it or any litigation (net of applicable insurance proceeds)
in excess of $10,000 in the aggregate; (i) use it best efforts to meet its
obligations under all Contracts, and not become in default thereunder; (j)
maintain its business and assets in working repair, order and condition,
reasonably wear and tear expected, and maintain insurance upon such business
and assets at least comparable in amount and kind to that in effect as of the
date of the Merger Agreement; (k) use its best efforts to maintain its present
relationships and goodwill with
 
                                      38
<PAGE>
 
suppliers, brokers, manufacturers, representatives, distributors, customers
and others having business relations with it; (l) carry on its business in the
ordinary course in substantially the same manner as previously conducted; (m)
not declare, set aside, make or pay any dividends or other distributions with
respect to its capital stock; (n) not authorize or make any capital
expenditure if the aggregate of the amount of such capital expenditure
together with the amounts of all other capital expenditures since the date of
the Merger Agreement shall exceed $50,000; (o) use its best efforts not to
violate any law or regulation applicable to it nor violate any order,
injunction or decree; and (p) not increase the number of shares authorized or
issued and outstanding of its capital stock, nor grant or make any pledge,
option, warrant, call, commitment, right or agreement of any character
relating to its capital stock, nor issue or sell any shares of its capital
stock.
 
  Puro has also agreed that it will, until the earlier of the Effective Time
or termination of the Merger Agreement in accordance with its terms, deliver
to U.S. Filter within 45 days after the end of each calendar month, unaudited
balance sheets, together with unaudited summaries of earnings. In addition,
Puro has agreed that, it will, until the earlier of the Effective Time or
termination of the Merger Agreement in accordance with its terms, deliver to
U.S. Filter within 45 days after the end of each fiscal quarter of Puro,
commencing with September 30, 1997, and within 60 days after the end of the
fiscal year ended December 31, 1997, as the case may be, unaudited balance
sheets, together with the related unaudited statements of income and cash
flows for the fiscal quarters then ended.
 
  In addition, Puro has agreed, subject to fiduciary obligations of the Puro
Board of Directors under applicable law as advised in writing by outside legal
counsel, that the Puro Board will recommend adoption and approval of the
Merger Agreement and shall use its best efforts to solicit and secure from its
stockholders their adoption and approval of the Merger Agreement.
 
NO SOLICITATION
 
  The Merger Agreement provides that Puro will not, directly or indirectly,
through any officer, director, employee, representative or agent of it: (a)
solicit, initiate or encourage any inquiries or proposals that constitute, or
could reasonably be expected to lead to, a proposal or offer for a merger,
consolidation, business combination, sale of substantial assets, sale of
shares of capital stock (including without limitation by way of a tender
offer) or similar transactions involving Puro, other than the transactions
contemplated by the Merger Agreement (any of the foregoing inquiries or
proposals being referred to in this Agreement as an "Acquisition Proposal");
(b) engage in negotiations or discussions concerning, or provide any non-
public information to any person or entity relating to, any Acquisition
Proposal; or (c) agree to, approve or recommend any Acquisition Proposal;
provided, however, that nothing contained in the Merger Agreement shall
prevent Puro or its Board of Directors from (x) furnishing non-public
information to, or entering into discussions or negotiations with, any person
or entity in connection with an unsolicited bona fide written Acquisition
Proposal by such person or entity or recommending an unsolicited bona fide
written Acquisition Proposal to the stockholders of Puro, if and only to the
extent that (1) the Puro Board believes in good faith that such Acquisition
Proposal would, if consummated, result in a transaction (an "Acquisition
Transaction") more favorable to Puro's stockholders from a financial point of
view than the transaction contemplated by the Merger Agreement (any such more
favorable Acquisition Transaction being referred to in the Merger Agreement as
a "Superior Proposal") and the Puro Board determines in good faith, based on
written advice of outside legal counsel, that such action is necessary for
Puro to comply with its fiduciary duties to stockholders under applicable law
and (2) prior to furnishing such non-public information to, or entering into
discussions or negotiations with, such person or entity, the Puro Board
receives from such person or entity an executed confidentiality agreement with
terms no more favorable to such party than those contained in the
Confidentiality Agreement dated July 30, 1997 between U.S. Filter and Puro
(the "Confidentiality Agreement"); or (y) taking any position with regard to
an Acquisition Proposal pursuant to Rules 14d-9 and 14e-2 under the Exchange
Act which is consistent with the advice of counsel concerning the Puro Board's
fiduciary duties under applicable law with respect to a tender offer commenced
by a third party (other than by public announcement alone).
 
 
                                      39
<PAGE>
 
  Puro is required to notify U.S. Filter upon receipt of any Acquisition
Proposal or request for non-public information or access to its properties,
books or records in connection with an Acquisition Proposal.
 
CONDITIONS
 
  The respective obligations of U.S. Filter, Sub and Puro to effect the Merger
are subject to the following conditions, among others: (a) the Merger
Agreement shall have been approved and adopted by the stockholders of Puro and
no right of dissent shall be applicable in connection therewith; (b) all
Required Authorizations shall have been obtained; (c) the Registration
Statement shall have become effective and shall not be the subject of a stop
order or proceedings seeking a stop order; (d) the absence of any temporary
restraining order, injunction or other order or legal or regulatory restraint
or prohibition preventing, or the enactment of any law making illegal, the
consummation of the Merger, or limiting or restricting U.S. Filter's conduct
or operation of Puro's business after the merger; (e) the approval of the
shares of U.S. Filter Common Stock to be issued in the Merger for listing on
the New York Stock Exchange upon official notice of issuance; (f) the accuracy
in all material respects of the representations and warranties of Puro, in the
case of U.S. Filter and Sub, and of U.S. Filter and Sub, in the case of Puro,
set forth in the Merger Agreement; (g) the performance in all material
respects of all obligations of Puro, in the case of U.S. Filter and Sub, and
of U.S. Filter and Sub, in the case of Puro, required to be performed under
the Merger Agreement; and (h) the receipt of certain legal opinions, including
the opinion of Kirkpatrick & Lockhart LLP, counsel to U.S. Filter, to the
effect that the Merger will be treated for federal income tax purposes as a
tax-free reorganization within the meaning of Section 368(a) of the Code.
 
  The obligations of U.S. Filter and Sub to consummate the Merger are also
subject to the following conditions among others: (a) all required
governmental and material third party authorizations shall have been obtained;
(b) the qualification of the Merger as a pooling of interests for accounting
purposes; (c) the receipt of an opinion from Lev, Berlin & Dale, P.C., counsel
to Puro; (d) the receipt of letters from the affiliates of Puro, within the
meaning of Rule 145 under the Securities Act, with respect to their
obligations under the Securities Act upon resale of any shares of U.S. Filter
Common Stock issued to them in connection with the Merger and to the effect
that such persons have not transferred shares of Puro Common Stock or U.S.
Filter Common Stock within the 30 days preceding the Effective Time and will
not transfer any shares of U.S. Filter Common Stock prior to the date that
U.S. Filter publishes results covering at least 30 days of post-merger
operations; (f) the resignation of all directors of Puro; (g) all holders of
outstanding options under the Employee Stock Option Plan and the Director
Stock Option Plan, and all holders of Convertible Notes shall have consented
in writing to the conversion of such options or rights to acquire Puro Common
Stock into options or rights to acquire U.S. Filter Common Stock; and (h)
certain employees of Puro shall have entered into employment agreements with
U.S. Filter.
 
TERMINATION; TERMINATION FEES AND EXPENSES
 
  The Merger Agreement may be terminated at any time prior to the Effective
Time:
 
    (a) by mutual written consent of U.S. Filter and Puro; or
 
    (b) by either U.S. Filter or Puro if the Merger shall not have been
  consummated by March 31, 1998 (provided that the right to terminate
  Agreement on this basis will not be available to any party whose failure to
  fulfill any material obligation under the Merger Agreement has been a cause
  of or has resulted in the failure of the Merger to occur on or before such
  date); or
 
    (c) by U.S. Filter or Puro, if (i) the other party has breached any
  representation or warranty contained in the Merger Agreement (except where
  such breach would not have a material adverse effect on the party having
  made such representation or warranty and its subsidiaries taken as a whole
  and would not have a material adverse effect upon the transactions
  contemplated by the Merger Agreement), or (ii) there has been a breach of a
  covenant or agreement set forth in the Merger Agreement on the part of the
  other party, which shall not have been cured within ten business days
  following receipt by the breaching party of written notice of such breach
  from the other party (other than those described under " No Solicitation,"
  as to which there shall be no cure period); or
 
                                      40
<PAGE>
 
    (d) by either U.S. Filter or Puro if a court of competent jurisdiction or
  other governmental authority shall have issued a nonappealable final order,
  decree or ruling or taken any other action, in each case having the effect
  of permanently restraining, enjoining or otherwise prohibiting the Merger;
  or
 
    (e) by either U.S. Filter or Puro, if, at the Puro stockholders' meeting
  (including any adjournment or postponement thereof), the requisite vote of
  the stockholders of Puro in favor of the Merger Agreement and the Merger
  shall not have been obtained; or
 
    (f) by U.S. Filter, if, after the date of the Merger Agreement, (i) Puro
  shall provide information to or engage in negotiations regarding any
  Acquisition Proposal with any person other than U.S. Filter or its
  affiliates, (ii) the Puro Board shall have withdrawn or modified its
  recommendation of the Merger Agreement or the Merger or shall have resolved
  to do any of the foregoing; (iii) the Puro Board shall have recommended to
  the stockholders of Puro an Acquisition Proposal other than one made by
  U.S. Filter or an affiliate of U.S. Filter; or (iv) a tender offer or
  exchange offer for 50% or more of the outstanding shares of Puro Common
  Stock is commenced other than by U.S. Filter or an Affiliate of U.S.
  Filter.
 
  In the event of any termination of the Merger Agreement by either U.S.
Filter or Puro as provided above, the Merger Agreement will become void and
there will be no liability or obligation on the part of U.S. Filter, Sub or
Puro or their respective officers, directors, stockholders or affiliates,
except to the extent that such termination results from the willful breach by
a party of the Merger Agreement, provided that the provisions relating to fees
and expenses shall survive such termination.
 
  Except as set forth below, whether or not the Merger is consummated, all
fees and expenses incurred in connection with the Merger Agreement and the
transactions contemplated thereby will be paid by the party incurring such
expenses, except that all fees and expenses, other than attorneys' fees,
incurred in relation to the printing and filing of this Proxy
Statement/Prospectus and the Registration Statement will be shared equally by
U.S. Filter and Puro.
 
  The Merger Agreement provides that Puro will reimburse U.S. Filter for out-
of-pocket expenses incurred by U.S. Filter relating to the transactions
contemplated by the Merger Agreement prior to termination (including, but not
limited to, fees and expenses of counsel, accountants and financial advisors)
upon the termination of the Merger Agreement by U.S. Filter pursuant to
paragraphs (c), (e) or (f) above. The Merger Agreement also provides that U.S.
Filter will reimburse Puro for out-of-pocket expenses incurred by Puro
relating to the transactions contemplated by the Merger Agreement prior to
termination (including, but not limited to, fees and expenses of counsel,
accountants and financial advisors) upon the termination of the Merger
Agreement by Puro pursuant to paragraph (c) above.
 
  Puro will be obligated to pay U.S. Filter a termination fee of $1,250,000
upon the earliest to occur of the following events: (x) the termination of the
Merger Agreement by U.S. Filter or Puro pursuant to paragraph (e) above or (y)
by U.S. Filter pursuant to clauses (ii), (iii) or (iv) of paragraph (f) above.
Puro will be obligated to pay U.S. Filter a termination fee of $750,000 upon
the termination of the Merger Agreement pursuant to clause (i) of paragraph
(f) above.
 
AMENDMENT AND WAIVER
 
  The Merger Agreement may be amended at any time by action taken or
authorized by the respective Boards of Directors of U.S. Filter, Sub and Puro,
but after approval by the stockholders of Puro of the Merger Agreement and the
transactions contemplated thereby, no amendment shall be made which by law
requires further approval by such stockholders, without such further approval.
The parties to the Merger Agreement, by action taken or authorized by their
respective Boards of Directors, may extend the time for performance of the
obligations or other acts of the other parties to the Merger Agreement, may
waive inaccuracies in the representations or warranties contained in the
Merger Agreement and may waive compliance with any agreements or conditions
contained in the Merger Agreement.
 
 
                                      41
<PAGE>
 
THE STOCKHOLDER AGREEMENTS
 
  Following is a summary of the Stockholder Agreements. Such summary is
qualified in its entirety by reference to the full text of the form of
Stockholder Agreement attached to this Proxy Statement/Prospectus as Annex B.
 
  Pursuant to the Stockholder Agreements, the individual parties thereto
(each, a "Stockholder") have each agreed that, until the earlier of (i) the
Effective Time or (ii) the date on which the Merger Agreement is terminated in
accordance with its terms (the earlier of such time and such date being
referred to herein as the "Stockholder Expiration Date"), the Stockholder will
vote, or take action by written consent with respect to, all of his shares of
Puro Common Stock (x) in favor of the adoption and approval of the Merger
Agreement and the transactions contemplated thereby, as such Merger Agreement
may be modified or amended from time to time (but not to reduce the
consideration to be received thereunder), and (y) against any action, omission
or agreement which would or could impede or interfere with, or have the effect
of discouraging, the Merger, including, without limitation, any Acquisition
Proposal other than the Merger.
 
  At the request of U.S. Filter the Stockholder will execute and deliver to
U.S. Filter an irrevocable proxy and irrevocably appoint U.S. Filter or its
designee his or her attorney and proxy to vote or give consent with respect to
all of his or her shares of Puro Common Stock for the purposes set forth
above. Any such proxy will terminate on the Stockholder Expiration Date.
 
  Each Stockholder Agreement contains the agreement of the Stockholder that,
among other things, until the Stockholder Expiration Date, he will: (a) not,
and will not agree to, sell, transfer, pledge, hypothecate, encumber, assign,
tender or otherwise dispose of any of his shares of Puro Common Stock (or any
interest therein) (other than in connection with certain transfers for estate
planning purposes, provided certain conditions are met); (b) other than as
expressly contemplated by the Stockholder Agreement, not grant any powers of
attorney or proxies or consents in respect of any of his or her shares of Puro
Common Stock, deposit any of his or her shares of Puro Common Stock into a
voting trust, enter into a voting agreement with respect to any of his or her
shares of Puro Common Stock or otherwise restrict the ability of the holder of
any of his or her shares of Puro Common Stock freely to exercise all voting
rights with respect thereto; (c) not initiate, solicit or encourage, directly
or indirectly, any inquiries or the making or implementation of any
Acquisition Proposal or engage in any negotiations concerning, or provide any
confidential information or data to, or have any discussions with, any person
relating to an Acquisition Proposal, or otherwise facilitate any effort or
attempt to make or implement an Acquisition Proposal, and will cease any
existing activities related to the foregoing; (d) notify U.S. Filter if any
such inquiry or proposal is received by such Stockholder; and (e) not take any
action that, based upon the advice of U.S. Filter's accountants, would or
could prevent the Merger from qualifying for pooling of interests accounting
treatment.
 
                                      42
<PAGE>
 
                          INFORMATION CONCERNING PURO
 
BUSINESS
 
  Puro is a leading bottler and distributor of spring and purified drinking
water, serving commercial and residential users in the metropolitan New York
area. Puro markets its drinking water under the brand names Puro, American
Eagle Spring Water, Nature's Best Spring Water and Lectro-Still. Puro also
rents and services water coolers, filtration systems and plumbed-in fountains
numbering in excess of 25,000 located in businesses, factories and homes in
the metropolitan New York area. Puro's facilities consist of NSF (National
Sanitation Foundation) certified bottling plants in East Orange, New Jersey
and Commack, Long Island, New York. In addition, Puro is an authorized factory
service center for all major water cooler manufacturers and provides warranty
repair coverage to many of its competitors.
 
  According to a study prepared by the Beverage Marketing Corporation, bottled
water has been the fastest growing segment of the beverage industry for the
past ten years. This growth has been fueled by increasing public concern about
the taste and safety of municipal water supplies and the desire among today's
increasingly diet and health conscious consumers for an "ideal" beverage.
 
  Puro's strategy is to capitalize on the growing demand for high quality
drinking water through the expansion of its existing customer base and through
the acquisition of regional bottlers and distributors in targeted geographic
markets. The bottled water distribution market is highly fragmented and
composed of many small regional companies, as well as a few larger companies
which own several brands, thus providing Puro with acquisition opportunities.
In addition, Puro continually seeks to grow revenues by increasing route
density through the acquisition and consolidation of new routes within the
existing route structure, thereby minimizing distribution and administration
costs. The continued consolidation of production and distribution capabilities
is a key component of Puro's operating plans, both within its current markets
and in any additional markets that it may enter.
 
  Puro is also the manager of a cooperative buying group, Quality Bottlers
Cooperative, Inc. (the "Cooperative"). Membership consists of the twelve
leading regional bottled water companies located throughout the United States
which are similar in size to Puro. Members are contractually required to
purchase all of their coolers, bottles, closures and other key items on a
group basis. Puro believes that the purchasing power of the Cooperative
permits the group to buy at prices that are no higher than those charged the
largest buyer in the industry, Nestle's Perrier group (whose brands in Puro's
markets include Poland Spring, Great Bear and Deer Park). The By-Laws of the
Cooperative require that each member derives more than 51% of its gross sales
from the sale of bottled water and/or the rental of related products and
materials. If a member fails to continue to satisfy this requirement, such
member may be expelled from the Cooperative upon the affirmative vote of a
majority of the members of the Cooperative. Immediately following the Merger,
U.S. Filter will fail to satisfy this requirement. As a result, Puro has
entered into discussions with the Cooperative in an attempt to obtain a waiver
of the requirement.
 
  Puro was incorporated in January 1994 and represents the acquisition of LSL
Hydro Corp. and Puro Corporation of America. Puro is organized under the laws
of the State of Delaware. Puro's principal executive offices are located at
56-24 58th Street, Maspeth, New York 11378 and its telephone number is (718)
326-7000.
 
INDUSTRY OVERVIEW
 
  Bottled water has been the fastest growing segment of the beverage industry
for the last ten years. According to "Bottled Water in the United States, May
1996", a study prepared by the Beverage Marketing Corporation of New York (the
"Beverage Market Survey"), total bottled water consumption in the United
States has more than tripled from 1983 to 1995. Annual consumption increased
from 2.8 gallons per capita in 1980 to 11.0 gallons per capita in 1995, and it
is projected to reach 14.2 gallons per capita by the year 2000. Bottled water
volume in the United States has grown significantly, increasing from
approximately 1.1 billion gallons in
 
                                      43
<PAGE>
 
1984 to approximately 2.9 billion gallons in 1995; from approximately $1.3
billion in sales in 1984 to over $3.3 billion in 1995.
 
                         1995 U.S. BOTTLED WATER SALES
                             (AMOUNTS IN MILLIONS)
 
<TABLE>
<CAPTION>
       GALLONS SOLD
       ------------
       <S>                                                      <C>       <C>
       Nonsparkling............................................  2,430.20 84.30%
       Imported................................................     97.10  3.40%
       Sparkling...............................................    356.20 12.40%
                                                                ---------
         Total.................................................  2,883.50
       DOLLAR SALES
       ------------
       Nonsparkling............................................ $2,121.20 62.90%
       Imported................................................ $  425.00 12.60%
       Sparkling............................................... $  828.80 24.60%
                                                                ---------
         Total................................................. $3,375.00
</TABLE>
- --------
Source: Beverage Market Survey
 
  The bottled water market is comprised of three segments: non-sparkling
(domestic), sparkling (domestic) and imported water (both sparkling and non-
sparkling). Non-sparkling water, which is consumed as an alternative to tap
water, is the segment in which Puro competes, is the largest of the three
segments and represented 84.3% of the total market in terms of gallons of
water sold in 1995. Sparkling water contains carbonation and is positioned to
compete in the broad "refreshment beverage" category. In 1995, domestic
sparkling water accounted for approximately 12.4% of total bottled water
consumption and the remaining 3.4% consisted of imported bottled water brands.
 
<TABLE>
<CAPTION>
                                                 NON-SPARKLING SPARKLING IMPORTS
                                                 ------------- --------- -------
                                                    (IN MILLIONS OF GALLONS)
       <S>                                       <C>           <C>       <C>
       1977.....................................     256.7        85.6      3.2
       1978.....................................     352.9       113.5     13.4
       1979.....................................     401.2       133.8     28.1
       1980.....................................     463.1       155.2     11.4
       1981.....................................     537.7       175.9     11.6
       1982.....................................     614.0       196.5     12.9
       1983.....................................     722.4       210.3     13.6
       1984.....................................     843.3       230.3     16.5
       1985.....................................     953.1       254.8     29.8
       1986.....................................    1070.4       281.6     30.8
       1987.....................................    1223.4       300.6     37.2
       1988.....................................    1406.9       316.5     49.7
       1989.....................................    1623.5       329.5     55.6
       1990.....................................    1753.5       371.3     73.9
       1991.....................................    1770.5       368.0     71.4
       1992.....................................    1839.5       365.9     86.3
       1993.....................................    1990.5       366.4     92.5
       1994.....................................    2214.6       366.4    104.0
       1995.....................................    2430.2       356.2     97.0
</TABLE>
- --------
Source: Beverage Market Survey
 
                                      44
<PAGE>
 
  Puro believes this growth in bottled water consumption is largely a function
of two consumer trends. First, consumers have increasingly turned to
alternative sources of drinking water as a result of growing concerns about
the perceived decline in the quality of the tap water available in their homes
and offices. Second, an increasing diet and health consciousness among
consumers has led many consumers to seek a beverage choice which closely
resembles the "ideal" refreshment beverage. That is, one that has no calories,
no preservatives, no additives or sugar, no sodium and no alcohol. High
quality bottled drinking water meets these demands.
 
  According to the Beverage Market Survey, the bottled water market has grown
at an average annual rate of 5.5% (1990-1995), and the Beverage Marketing
Corporation of New York projects that it will grow at a slightly higher rate
of 6.5% between 1995 and 2000. Bottled water volume in the United States is
projected to grow from approximately 2.9 billion gallons in 1995 to
approximately 3.9 billion gallons by the year 2000. Per capita consumption is
projected to reach 14.2 gallons for every person in the United States by the
year 2000.
 
                      PROJECTED U.S. BOTTLED WATER MARKET
                                   1995-2000
 
<TABLE>
<CAPTION>
                                         MILLIONS OF 5 YEARS' AVERAGE  GALLONS
       YEAR                                GALLONS    ANNUAL GROWTH   PER CAPITA
       ----                              ----------- ---------------- ----------
       <S>                               <C>         <C>              <C>
       1995.............................   2,883.5         5.5%          11.0
       2000.............................   3,943.2         6.5%          14.2
</TABLE>
- --------
Source: Beverage Market Survey
 
  Bottled water channels of distribution consist of drinking water purchased
in pre-filled containers from retail locations (primarily supermarkets), water
delivered in pre-filled containers to residential or commercial establishments
and water sold through a self-service or "vended" format to retail consumers
who fill their own containers. The market share of each of these distribution
channels varies considerably by geographical area. According to the Beverage
Market Survey, the total share of the national bottled water of these
distribution channels for 1995 was: retail (53.0%), home delivery (20.6%),
commercial delivery (18.4%) and vended (8.0%).
 
  Further impetus for consumers' tap water concern took place on August 6,
1996 when President Clinton signed into law the Safe Drinking Water
Reauthorization Act of 1996. For the first time, federal law requires all
local water utilities to issue annual reports disclosing the chemicals and
bacteria that the tap water contains. The language must be simple and sent
directly to customers with their water utility bills. Especially important is
a 24-hour notification requirement when any contaminant poses a significant
risk. Puro believes that this change in the nation's law will increase the
public's concern over the quality and safety of public water supplies. Usage
of high quality bottled water and drinking water filtration systems can be
expected to benefit from this increased awareness.
 
BUSINESS STRATEGY
 
  The bottled water distribution market is highly fragmented and composed of
many small regional companies as well as a few larger companies which own
several brands. Puro's strategy is to capitalize on the growing demand for
high quality drinking water resulting from the increasing public concern about
the taste and safety of municipal water supplies and the desire among today's
increasingly diet and health conscious consumers for an "ideal" beverage
through the expansion of its existing customer base and through the
acquisition of regional water bottlers and distributors in targeted geographic
markets. In addition, management continually seeks to grow revenues by
increasing route density through the acquisition and consolidation of new
routes within its existing route structure, thereby minimizing distribution
and administration costs. The continued consolidation of production and
distribution capabilities is a key component of Puro's operating plans, both
within its current markets and any additional markets it may enter.
 
                                      45
<PAGE>
 
  In support of its growth strategy Puro is continuing to pursue the
acquisition of regional water bottlers and distributors, as well as mergers
with certain members of the Cooperative. As of the date of this Proxy
Statement/Prospectus, Puro has ten companies under active review as candidates
for acquisition or merger, although Puro has no agreements, commitments or
arrangements with respect to any material proposed mergers or acquisitions.
 
BOTTLED WATER PROCESSING
 
  Puro employs a broad spectrum of treatment technologies for its various
bottled waters, ranging from minimum treatment of its natural spring waters to
extensive treatment of public water sources for its distilled and drinking
waters. Manufacturing practices, quality standards and labeling of Puro's
bottled water products are regulated by the Federal Food and Drug
Administration ("FDA") as well as the states and some localities in which the
water is distributed. In addition, Puro participates in the International
Bottled Water Association's inspection program which incorporates quality
standards stricter than those prescribed by law.
 
  Natural Spring Water. As "natural" waters, Puro's state-certified spring
sources may not be subjected to any treatment which alters the mineral
composition of the product. Spring water, by law, may not be derived from a
municipal system or public water supply, and must be derived from an
underground source, free of surface water influence, which flows continuously
to the surface under its own pressure. A hydrogeological report must validate
the integrity of the source and safety of the water-collection operations
before any groundwater source can be certified as a spring. Regular
bacteriological and chemical compliance monitoring of Puro's springs assures
that these sources remain uncontaminated.
 
  Puro's water sources, at Mountainwood Spring and Indian Camp Spring, are
located in remote, pristine environments where each spring's recharge areas
have not been encroached by industry, agriculture or housing development.
Consequently, the spring water must be transported to Puro's plants by
stainless steel tanker trucks used solely for its water. At the spring source
the water is filtered and ozonated (see below) prior to loading. This
disinfects the spring water, and the residual ozone in the water disinfects
the inside of the tanker, thereby insuring that bacteria are not transferred
from the spring or the tanker to Puro's bottling plants. Samples for each
tanker load are tested for bacterial safety, consistency and ozone residual.
 
  Sanitary bulk, stainless tanks at Puro's bottling plants protect the spring
water while it is again ozonated and finally filtered through one-micron
absolute filters immediately before being bottled in sanitized containers.
Puro employs this "multiple barrier" approach to protect its natural spring
water from contaminants, including dangerous protozoan cysts such as
Cryptosporidium which can survive municipal tap water disinfection with
chlorine.
 
  Distilled Water. Puro uses more extensive treatment techniques for its
processed waters. For example, Puro's distilled water is produced by the
recapture of condensed steam, one of the oldest water purification mechanisms
known. Automated distillation units at Puro's East Orange bottling plant
vaporize the local municipal water through heating, leaving behind impurities
of minerals and other compounds. The condensed water vapor produces a water of
extremely high purity and very low mineral content (typically less than
10mg/liter of total dissolved solids). This level of purity enables distilled
water to be used for pharmaceutical purposes, photographic processes,
humidifiers and similar applications as well as for drinking.
 
  Drinking Water. The processes involved in producing Puro's drinking waters
include particle filtration, carbon adsorption (molecular adhesion),
ultraviolet disinfection, deionization, one-micron absolute filtration and
ozonation. Public water is initially filtered using a five-micron filter to
remove sedimentation. The water is then processed through an activated carbon
bed to remove organic compounds and associated tastes and odors. This step
also removes chlorine which is added as a disinfectant to public supplies. The
by-products of chlorine disinfection, such as trihalomethanes, are also
removed by activated carbon adsorption. Ultraviolet treatment is a precaution
against any microbial contamination which might be transported further along
in the production line. Deionization is used at Puro's East Orange plant to
reduce dissolved minerals in the final drinking water. As is
 
                                      46
<PAGE>
 
the case with all of Puro's waters, a one-micron absolute filter is the final
filtration stage prior to ozonation and bottling.
 
  Ozonation involves a special form of oxygen, ozone (O/3/), which is the
strongest disinfectant and oxidizing agent available for water treatment. It
is the standard disinfectant for bottled water processing. A highly unstable
gas, ozone must be generated on site, prior to transport at the spring
locations, and at Puro's bottling plants. Because it is only partially soluble
in water, sufficient ozone contact with the water is established by special
contact tanks and mixing vessels. These extended contact times and the closely
monitored ozone concentrations are the reason that properly ozonated bottled
water can be assured to be free of chlorine-resistant organisms such as the
recently publicized parasitic cyst, Cryptosporidium. A special "hyperozonator"
provides a final disinfecting rinse of ozonated water in the bottle washing
and sanitizing machines at both of Puro's plants.
 
  After the appropriate treatments, the product water is piped to the Clean
Room, which houses the automatic filling and capping equipment. Its design
mandated by the FDA, the Clean Room is totally enclosed with a positive-
pressure ventilation system which feeds filtered, sterilized air into the
room. This room and its equipment are sanitized every day. The final product,
whether natural spring water, distilled or drinking water, is a high quality,
clean bottled water that is one of the most strictly regulated and reliable
pure food products available to the American consumer.
 
WATER SUPPLY AGREEMENTS
 
  Spring Water Suppliers. On June 13, 1996, Puro entered into a long-term
spring water supply contract for its Commack, Long Island, New York bottling
facility with Shawangunk Bulk Spring Water. This agreement provides for "most-
favored-customer" treatment with respect to pricing and priority water rights
for the next forty-five years to the Indian Camp Spring source which is owned
by Shawangunk Bulk Spring Water and located in the foothills of the Catskill
Mountains in New York.
 
  On June 27, 1996, Puro entered into a long-term spring water supply contract
for its East Orange, New Jersey bottling facility with its primary bulk spring
water supplier, Mountainwood. The agreement provides for "most-favored-
customer" treatment with respect to priority water rights over a forty-three
year period. Management believes that Mountainwood's spring source, in the
foothills of the Kittatinny Mountains near the Delaware Water Gap, is
considered the highest volume, free flowing certified natural spring water
source in the northeastern United States. Effective July 1, 1996, Puro also
acquired Mountainwood's five-gallon bottled water direct delivery and bottled
water cooler rental routes.
 
  Purified Water Suppliers. Puro obtains the water for distilled and purified
drinking water from public water sources. The public water source for Puro's
East Orange, New Jersey facility is the East Orange public water supply and
the public water source for Puro's Commack Long Island, New York facility is
the Suffolk County Water Authority.
 
DRINKING WATER SYSTEMS
 
  In addition to the rapid growth in bottled water consumption, the past
decade has also seen the emergence of water treatment technologies which can
produce high quality water economically at the point of use (rather than
delivered in bottles). These technologies, including micron filtration, have
had a major impact on the growth and development of water processed at the
point of use. Puro's non-bottled water dispensing systems are equipped with
filtration systems which remove substantial amounts of the chlorine, dirt
particles, rust, lead and other objectionable materials from the source tap
water.
 
  Puro believes that it is the only full-service provider in its market to
provide its customers with a "one-stop" solution to drinking water needs. If a
customer has neither the space nor the budget for bottled water, Puro can
provide a wide variety of filtration and treatment units to meet any drinking
water needs. A staff of installers and plumbers will assume responsibility for
survey, equipment selection, installation, contract
 
                                      47
<PAGE>
 
maintenance and rental/service. As a factory authorized sales and service
center for all of the major types of drinking fountains and coolers, Puro can
offer the customer a complete choice of models: wall-hung, recessed, stand-
alone, handicapped, under the sink, drainless, counter-top, etc. A
computerized follow-up system insures that cartridge changes and routine
service are performed on a timely basis by Puro's field staff. This reliance
upon Puro for installation, equipment and maintenance is a firm basis for the
long-term relationship that Puro enjoys with its point of use customers.
 
  Most of Puro's equipment is placed in the customer's home or office under a
standard two-year rental contract which is renewable thereafter on a month to
month basis and is terminable by either party upon 30 days notice. The
attachment of its point of use equipment to the plumbing makes it less likely
that a customer will request that the equipment be removed.
 
EQUIPMENT SUPPLY, ASSEMBLY AND RENTAL SERVICES
 
  Puro purchases the various water treatment systems and bottled water
dispensers used in its home and office equipment from major suppliers such as
EBCO Manufacturing Company and Sunroc Corp. through the Cooperative. Once a
customer has chosen a water treatment system and a dispenser, the two
components are connected as a unit, tested and installed by Puro's service
personnel. Puro is not dependent on any single supplier for any of these
components.
 
  Puro rents a broad range of water treatment and dispensing units to
commercial and residential customers. Puro generally rents such units to
customers at prices ranging from $6.00 to $45.00 per month depending on the
components selected. As of December 31, 1996, Puro had in excess of 25,000
water treatment and dispensing units in service, located in the metropolitan
New York area, which accounted for approximately 20.6% of Puro's revenues. In
addition, from time to time Puro has sold water treatment and dispensing units
to customers upon request; such outright sales accounted for less than 8% of
revenues during the twelve months ended December 31, 1996.
 
  Puro uses its factory authorized warranty and repair facilities to
recondition most of the rental water coolers which have been returned from the
field. The cost associated with this refurbishment of returned rental units is
expensed on a current basis. The reconditioned units are available for rental
placement in the field at a cost lower than that of newly purchased coolers.
 
SALES AND MARKETING
 
  Puro markets its commercial and residential water treatment and dispensing
units to commercial customers that are using or have used bottled water
coolers as an alternative to providing tap water to their employees and to
residential customers who have been introduced to Puro's water treatment and
bottled water units through Puro's commercial customers. Puro markets its
products principally through the effort of salaried and independent sales
personnel as well as through print advertising, telemarketing, trade shows,
its Internet Website, sponsored community events, field delivery/service
personnel and customer referrals. To date, Puro has concentrated its marketing
efforts on targeting commercial customers in the metropolitan New York markets
where demographic, economic and water consumption trends, as well as the
overall quality of municipal water supplies, indicate a growing demand for
affordable, high quality drinking water. Puro expects to increase its
marketing efforts, principally through increased print and broadcast media
advertising, additional sales personnel and attendance at additional trade-
shows.
 
CUSTOMERS
 
  Since 1994, Puro has grown from approximately 5,000 water customers to in
excess of 25,000 currently served. Puro's customer base for its bottled water
and water treatment and dispensing units is currently comprised of
approximately 90% commercial accounts and 10% residential accounts. Through
its American Eagle Spring and Lectro-Still retail brands Puro markets one-
gallon natural spring and distilled waters in supermarkets and pharmacies in
the northeastern United States.
 
                                      48
<PAGE>
 
  In addition, Puro has been selected by several distributors to bottle under
their own label on a contract basis. Given Puro's ability to absorb such
additional volume at its plants with little marginal cost and no disruption to
existing business, management will continue to do such private label bottling
for selected accounts. In the past two years, such five-gallon private label
bottling relationships have resulted in Puro's ability to acquire a number of
the distributors' routes and blend them into Puro's route structure. The East
Orange, New Jersey facility will also continue to provide one-gallon private
label water bottling on a select basis for local supermarket chains and health
care stores so long as there is no adverse impact on Puro's production of its
own brands.
 
COMPETITION
 
  Puro competes with numerous well-established companies, including Nestle's
Perrier group (whose brands in Puro's market include Poland Spring, Great Bear
and Deer Park), which distribute drinking water sold off the shelf at retail
(primarily supermarket) locations. Many of Puro's competitors have achieved
significant national, regional and local brand name and product recognition
and additional competitors have sought to enter the drinking water market.
 
  In recent years, several companies have introduced drinking water products
positioned to capitalize on the growing consumer preference for purified and
aesthetically pleasing water. It can be expected that Puro will be subject to
increasing competition from companies whose products or marketing strategies
address these consumer preferences. Some of Puro's competitors and potential
competitors possess substantially greater financial, personnel, marketing and
other resources than Puro and have established reputations for success in the
sale of purified water products. Puro believes that it competes on the basis
of quality of service, convenience and price.
 
SEASONALITY
 
  The revenues of Puro have been subject to seasonal variations with decreased
revenues during cold weather months and increased revenues during the hot
weather months.
 
PATENTS AND TRADEMARKS
 
  Puro holds two patents related to bacteriostatic carbon formulation and
production.
 
  Puro has registered the Puro trademark and service mark in the United States
Patent and Trademark Office. Puro acquired the American Eagle Spring Water
trademark among others in its acquisition of the assets of Electrified. Puro
has no reason to believe that there are any conflicting rights which might
impair Puro's use of its marks outside the United States; however, there can
be no assurance that such conflicting rights do not exist. Puro believes that
the trademarks and service mark are valuable to the operation of its business.
Puro's policy is to pursue registration of its marks whenever possible and to
oppose vigorously any infringement of its marks.
 
  As is typically the case with drinking water treatment components, Puro does
not believe its business is materially dependent upon obtaining patent
protection for its various systems.
 
REGULATION
 
  Puro's business is subject to various federal, state and local laws and
regulations which require Puro, among other things, to obtain licenses for its
business and equipment, to pay annual license and inspection fees, to comply
with certain detailed design and quality standards regarding Puro's bottling
plant and equipment and to continuously control the quality and quantity of
the water dispensed. Several states have regulations that require Puro to
obtain certification for its bottled water. Puro believes that it is currently
in compliance with these laws and regulations and has passed all regulatory
inspections. In addition, Puro does not believe that the cost of compliance
with applicable governmental laws and regulations is material to its business.
However, recent media attention has been given to the health and safety
standards and to the degree of governmental oversight in the drinking water
industry. To the extent that additional regulations are imposed as a result of
these or other concerns and such regulations are unreasonably burdensome, such
regulations could significantly increase the costs of compliance and reduce
the ability of Puro to maintain or increase its customer base.
 
                                      49
<PAGE>
 
PRODUCT LIABILITY AND INSURANCE
 
  Puro is engaged in a business which could expose it to possible claims for
personal injury resulting from contamination of water produced by its bottling
plants or dispensing equipment. While Puro believes that through regular
testing it carefully monitors the quality of water produced by its plants, it
may be subject to exposure in the case of customer misuse of a cooler or
bottle storage. Puro maintains blanket "claims made" product liability
insurance against liability resulting from certain types of injuries in
amounts that it believes to be adequate. Additionally, Puro maintains an
umbrella policy that it believes to be adequate to cover claims above the
limits of the product liability insurance. Although no claims have been made
against Puro or any of its customers to date and Puro believes that its
current level of insurance is adequate for its present business operations,
there can be no assurance that such claims will not arise in the future or
that the proceeds of Puro's policy will be sufficient to pay such claims.
 
EMPLOYEES
 
  As of October 15, 1997, Puro had 122 full-time employees, of which eight are
in executive positions, 48 in distribution, 20 in maintenance and service,
four in sales, 13 in manufacturing and 29 in administration. Certain of Puro's
employees are represented by Teamsters, Chauffeurs, Warehousemen & Helpers
Local Union No. 560. Puro is a party to a collective bargaining agreement
expiring February 28, 1999. Puro considers its employee relations to be
satisfactory.
 
LITIGATION
 
  Puro is not a party to any legal proceedings which individually or in the
aggregate are believed to be material to Puro's business.
 
MATERIAL ACQUISITIONS
 
  Consistent with its strategy of acquiring regional water bottlers and
distributors, on January 31, 1996, Puro purchased the assets and assumed
certain liabilities of Electrified. Electrified was a direct competitor of
Puro in the bottled water distribution and water cooler rental business in the
New York City area. Puro's acquisition of Electrified's modern high-speed
production facility in East Orange, New Jersey, together with its new bottling
facility in Commack, Long Island, New York, permits it to absorb additional
bottling demand without a commensurate increase in production costs.
 
  On June 13, 1996, Puro entered into a long-term spring water supply contract
for its Commack, Long Island, New York, bottling facility with Shawangunk Bulk
Spring Water. The agreement provides for "most-favored-customer" treatment
with respect to pricing and priority water rights for the next forty-five
years to the Indian Camp Spring source which is owned by Shawangunk Bulk
Spring Water and located in the foothills of the Catskill Mountains in New
York.
 
  On June 27, 1996, Puro entered into a long-term spring water supply contract
for its East Orange, New Jersey bottling facility with its primary bulk spring
water supplier, Mountainwood. The agreement provides for "most-favored-
customer" treatment with respect to priority water rights over a forty-three
year period. Management believes that Mountainwood's spring source, in the
foothills of the Kittatinny Mountains near the Delaware Water Gap, is
considered the highest volume, free flowing certified natural spring water
source in the northeastern United States. Effective July 1, 1996, Puro also
acquired Mountainwood's five-gallon bottled water direct delivery and bottled
water cooler rental routes.
 
  In addition to the foregoing, during 1994 through 1997, consistent with its
acquisition strategy, Puro acquired 11 other regional water bottlers and
distributors.
 
RESEARCH AND DEVELOPMENT
 
  Puro has not spent any material amounts during either of the last two fiscal
years on research and development activities.
 
                                      50
<PAGE>
 
COMPLIANCE WITH ENVIRONMENTAL LAWS
 
  Puro has not incurred any material costs in connection with compliance with
United States federal, state and local environmental laws.
 
PROPERTY
 
  Puro's offices and plants are located in East Orange, New Jersey, Commack,
Long Island, New York and Maspeth, New York. The following table sets forth
certain information relating to the leased and owned space for each location.
 
<TABLE>
<CAPTION>
                          SQUARE FEET                          EXPIRATION
 LOCATION OF FACILITY    (APPROXIMATE) LEASE TERM MONTHLY RENT    DATE
 --------------------    ------------- ---------- ------------ ----------
<S>                      <C>           <C>        <C>          <C>
East Orange                 48,000      10 Years   $10,000(1)     2007
101 North Park Street
East Orange, New Jersey
Commack                     23,000       5 Years   $10,200(2)     2001
76-78 Mall Drive
Commack, New York (Long
Island)
Maspeth                      7,500       3 Years   $ 5,000(3)     2000
56-24 58th Street
Maspeth, New York
</TABLE>
- --------
(1) Rent is fixed through January 31, 2001 and thereafter adjusts annually
    based upon the change in the consumer price index.
(2) Commencing November 1, 1997, and continuing through the lease term, rent
    is subject to periodic increases averaging approximately $550 per month.
(3) Commencing July 1, 1999, the annual rent will be increased to $5,250 per
    month.
 
  At the East Orange, New Jersey facility, Puro bottles spring, purified and
distilled water in five and one-gallon sizes. This modern production plant
features high-speed sanitizing and filling equipment. Management believes that
this facility contains the only fully automatic five-gallon bottle rack loader
in the metropolitan New York area. Additional bottling volume can be added at
low incremental production cost for both the five-gallon and one-gallon lines.
 
  Puro's most recent 1996 plant inspection at East Orange resulted in a
sanitary compliance rating in excess of 97%, making the facility eligible to
receive the International Bottled Water Association's Excellence in
Manufacturing recognition.
 
  In addition, Puro performs water cooler servicing and refurbishment
activities at this facility including warranty repairs, filtration system
installation and renovation of rental units for placement back in service in
the field. This facility services Puro's bottled water and water cooler
customers in Manhattan, the Bronx, Staten Island and New Jersey.
 
  Puro's Long Island bottling plant in Commack was opened in the summer of
1996 with a modern high-speed five-gallon sanitizing and filling line for
spring and purified drinking water. This facility, which replaced a smaller
plant in Port Jefferson, Long Island, New York, serves Puro's Brooklyn, Queens
and Long Island customers. Additional bottling volume can be added at low
incremental production costs.
 
  Puro currently utilizes its Maspeth, New York facility for servicing of
water coolers, limited water distribution and corporate headquarters. Puro
believes its facilities are adequate for its present needs.
 
 
                                      51
<PAGE>
 
                              SECURITY OWNERSHIP
 
  The following table sets forth information as of October 15, 1997 with
respect to the beneficial ownership of Puro Common Stock by (i) each person
(including any group) known to Puro to be the beneficial owner of more than 5%
of the outstanding Puro Common Stock, (ii) each director of Puro, (iii) each
executive officer of Puro and (iv) all directors and executive officers of
Puro as a group. Except as may be indicated in the footnotes to the table,
each such person has the sole voting and investment power with respect to the
shares owned, subject to applicable community property laws.
 
<TABLE>
<CAPTION>
                                                       NUMBER OF    PERCENT OF
   BENEFICIAL OWNER(1)                                 SHARES(2)     CLASS(3)
   -------------------                                 ---------    ----------
   <S>                                                 <C>          <C>
   Peter T. Dixon..................................... 1,374,062(4)    38.6%
   Scott Levy.........................................   391,047(5)    11.2%
   Jack C. West.......................................   359,505(6)    10.3%
   Stephen C. Edberg..................................   157,852(7)     4.5%
   Leonard D. Rosinski................................    10,000(8)     *
   All directors and executive officers as a group (5
    persons).......................................... 2,292,466       63.2%
</TABLE>
- --------
  * Indicates ownership of less than one percent.
(1) Unless otherwise indicated, the address of each beneficial owner is c/o
    Puro, 56-24 58th Street, Maspeth, New York 11378.
(2) Beneficial ownership is determined in accordance with the rules of the
    Commission and generally includes voting or investment power with respect
    to securities and includes options exercisable within 60 days of the date
    of this filing. Except as indicated by footnote, and subject to community
    property laws where applicable, the persons named in the table above have
    sole voting and investment power with respect to all shares of Common
    Stock shown as beneficially owned by them.
(3) The percentage of class is calculated in accordance with Rule 13d-3 under
    the Exchange Act and assumes that the beneficial owner has exercised any
    options or other rights to subscribe which are exercisable within 60 days
    and that no other options or rights have been exercised by anyone else.
(4) These shares consist of (i) 357,991 shares of Common Stock held by Peter
    T. Dixon, (ii) 932,145 shares of Common Stock held by the Dixon Trusts,
    and (iii) 83,926 shares of Puro Common Stock issuable upon the exercise of
    outstanding options, of which options to purchase 34,642 shares of Puro
    Common Stock are held by Peter T. Dixon and options to purchase 49,284
    shares of Puro Common Stock are held by the Dixon Trusts.
(5) These shares are jointly held by Mr. Levy with his spouse.
(6) These shares have been pledged pursuant to a Stock Pledge Agreement dated
    as of October 9, 1997 by and between Mr. West and EAB.
(7) Stephen C. Edberg is the general partner of Edberg Associates. These
    shares consist of (i) 98,568 shares of Puro Common Stock held by Edberg
    Associates, and (ii) 59,284 shares of Puro Common Stock issuable upon the
    exercise of outstanding options, of which options to purchase 10,000
    shares are held by Mr. Edberg and options to purchase 49,284 shares are
    held by Edberg Associates.
(8) These shares of Puro Common Stock are issuable upon the exercise of
    outstanding options.
 
                                      52
<PAGE>
 
                                 LEGAL MATTERS
 
  The validity of the shares of U.S. Filter Common Stock to be issued in
connection with the Merger and certain other legal matters in connection with
the Merger will be passed upon for U.S. Filter by Kirkpatrick & Lockhart LLP,
Pittsburgh, Pennsylvania. Certain legal matters in connection with the Merger
will be passed upon for Puro by Lev, Berlin & Dale, P.C., Norwalk,
Connecticut.
 
                   INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
 
  The consolidated financial statements of United States Filter Corporation
and its subsidiaries as of March 31, 1996 and 1997 and for each of the three
years in the period ended March 31, 1997 have been incorporated herein by
reference in reliance upon the report of KPMG Peat Marwick LLP, independent
certified public accountants, which report is incorporated herein by
reference, and upon the authority of said firm as experts in accounting and
auditing.
 
  The financial statements of the Puro Water Group, Inc. as of December 31,
1996 and 1995 and for each of the two years ended December 31, 1996 included
in this Proxy Statement/Prospectus have been audited by Arthur Andersen LLP,
independent public accountants, as indicated in their reports with respect
thereto, and are included herein in reliance upon the authority of said firm
as experts in giving said reports.
 
                                      53
<PAGE>
 
                         INDEX TO FINANCIAL STATEMENTS
 
                             PURO WATER GROUP, INC.
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Report of Independent Public Accountants................................... F-2
Balance Sheets............................................................. F-3
Statements of Operations................................................... F-4
Statements of Stockholders' Equity......................................... F-5
Statements of Cash Flows................................................... F-6
Notes to Financial Statements.............................................. F-7
</TABLE>
 
                                      F-1
<PAGE>
 
                   REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To Puro Water Group, Inc.:
 
  We have audited the accompanying balance sheet of Puro Water Group, Inc. (a
Delaware corporation) as of December 31, 1996, and the related statements of
operations, stockholders' equity and cash flows for each of the two years then
ended. These financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements based on our audits.
 
  We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.
 
  In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Puro Water Group, Inc. as
of December 31, 1996, and the results of its operations and its cash flows for
each of the two years then ended, in conformity with generally accepted
accounting principles.
 
                                          Arthur Andersen LLP
 
New York, New York
April 11, 1997
 
                                      F-2
<PAGE>
 
                             PURO WATER GROUP, INC.
 
                                 BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                       DECEMBER 31,  JUNE 30,
                                                           1996        1997
                                                       ------------ -----------
                                                                    (UNAUDITED)
<S>                                                    <C>          <C>
                       ASSETS
CURRENT ASSETS:
  Cash...............................................  $   216,960  $   387,610
  Accounts receivable, less allowance for doubtful
   accounts of $201,205..............................    2,527,915    2,997,416
  Inventory..........................................      550,243      571,528
  Prepaid expenses...................................      211,282      537,196
                                                       -----------  -----------
    Total current assets.............................    3,506,400    4,493,750
PROPERTY, PLANT AND EQUIPMENT, net of accumulated
 depreciation of $1,263,994 and $940,969,
 respectively (Note 4)...............................    5,781,005    5,171,730
INTANGIBLE ASSETS, net of accumulated amortization of
 $941,708 and $712,734, respectively (Note 5)........    7,638,884    7,763,035
DEFERRED REGISTRATION COSTS..........................      729,934          --
OTHER ASSETS.........................................      136,491      120,229
                                                       -----------  -----------
      TOTAL ASSETS...................................  $17,792,714  $17,548,744
                                                       ===========  ===========
        LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Accounts payable...................................  $   619,985  $   657,679
  Accrued expenses and other current liabilities.....      223,290      198,235
  Accrued registration costs.........................      454,647          --
  Income taxes payable...............................      179,422      145,535
  Deferred income....................................      236,184      236,184
  Short-term borrowings (Note 6).....................    2,100,000      365,000
  Current portion of long-term debt (Note 7).........    2,040,361    1,000,972
  Current portion of capital lease obligations (Note
   10)...............................................      201,649      209,304
                                                       -----------  -----------
    Total current liabilities........................    6,055,538    2,812,909
LONG-TERM LIABILITIES:
  Long-term debt (Note 7)............................    5,903,120    2,702,428
  Capital lease obligations (Note 10)................      217,081      192,520
  Deferred tax liability.............................      765,000      765,000
  Other liabilities..................................      208,970       46,692
                                                       -----------  -----------
    Total Long-term Liabilities......................    7,094,171    3,706,640
COMMITMENTS (Note 13)
STOCKHOLDERS' EQUITY:
  Common stock, $.0063 par value; 10,000,000 shares
   authorized; 2,126,789 and 3,476,789 shares issued
   and outstanding, respectively.....................       13,399       21,904
  Additional paid-in capital.........................    3,342,715    9,420,019
  Retained earnings..................................    1,286,891    1,587,272
                                                       -----------  -----------
    Total stockholders' equity.......................    4,643,005   11,029,195
                                                       -----------  -----------
      TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY.....  $17,792,714  $17,548,744
                                                       ===========  ===========
</TABLE>
 
      The accompanying notes are an integral part of these balance sheets.
 
                                      F-3
<PAGE>
 
                             PURO WATER GROUP, INC.
 
                            STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                          YEARS ENDED DECEMBER 31,     SIX MONTHS    SIX MONTHS
                          --------------------------      ENDED         ENDED
                              1995          1996      JUNE 30, 1996 JUNE 30, 1997
                          ------------  ------------  ------------- -------------
                                                       (UNAUDITED)   (UNAUDITED)
<S>                       <C>           <C>           <C>           <C>
REVENUE:
  Bottled water sales
   and other revenue....  $  4,175,395  $  8,441,326   $4,010,633    $4,852,744
  Rental revenue........     1,325,769     2,186,264    1,052,164     1,053,916
                          ------------  ------------   ----------    ----------
    Total revenue.......     5,501,164    10,627,590    5,062,797     5,906,660
COST OF GOODS SOLD:
  Cost of goods sold
   (excluding
   depreciation)........     1,615,228     3,506,321    1,317,959     2,082,492
  Depreciation..........       237,518       530,814      243,537       296,160
                          ------------  ------------   ----------    ----------
GROSS PROFIT............     3,648,418     6,590,455    3,501,301     3,528,008
OPERATING EXPENSES:
  Operating expenses
   (excluding
   depreciation and
   amortization)........     1,305,786     1,898,610    1,070,260     1,555,582
  General and
   administrative
   expenses.............     1,309,478     2,172,039    1,496,628     1,037,411
  Depreciation and
   amortization.........       213,855       461,118      202,452       261,663
                          ------------  ------------   ----------    ----------
    Total operating
     expenses...........     2,829,119     4,531,767    2,769,340     2,854,656
                          ------------  ------------   ----------    ----------
INCOME FROM OPERATIONS..       819,299     2,058,688      731,961       673,352
OTHER INCOME/(EXPENSE):
  Other
   income/(expense).....       118,577        28,299        4,184        64,189
  Interest expense......      (302,973)     (763,604)    (329,684)     (236,907)
  Plant relocation
   charges..............           --       (250,000)         --           --
                          ------------  ------------   ----------    ----------
                              (184,396)     (985,305)    (325,500)     (172,718)
                          ------------  ------------   ----------    ----------
INCOME BEFORE PROVISION
 FOR INCOME TAXES.......       634,903     1,073,383      406,461       500,634
PROVISION FOR INCOME
 TAXES..................       231,000       446,220      170,000       200,253
                          ------------  ------------   ----------    ----------
NET INCOME..............  $    403,903  $    627,163   $  236,461    $  300,381
                          ============  ============   ==========    ==========
PER SHARE INFORMATION:
  Earnings per share
   (Note 2).............  $       0.21  $       0.28   $     0.11    $     0.09
                          ============  ============   ==========    ==========
  Weighted average
   common shares
   outstanding (Note
   2)...................     1,927,662     2,237,679    2,237,679     3,289,043
                          ============  ============   ==========    ==========
</TABLE>
 
 
        The accompanying notes are an integral part of these statements.
 
                                      F-4
<PAGE>
 
                             PURO WATER GROUP, INC.
 
                       STATEMENTS OF STOCKHOLDERS' EQUITY
 
<TABLE>
<CAPTION>
                              COMMON STOCK
                            ----------------- ADDITIONAL
                            NUMBER OF   PAR    PAID-IN    RETAINED
                             SHARES    VALUE   CAPITAL    EARNINGS     TOTAL
                            --------- ------- ---------- ---------- -----------
<S>                         <C>       <C>     <C>        <C>        <C>
BALANCE, December 31,
 1994...................... 1,577,089 $ 9,936 $  845,178 $  255,825 $ 1,110,939
  Issuance of common
   stock...................   394,272   2,484  1,997,516        --    2,000,000
  Net income...............       --      --         --     403,903     403,903
                            --------- ------- ---------- ---------- -----------
BALANCE, December 31,
 1995...................... 1,971,361  12,420  2,842,694    659,728   3,514,842
  Issuance of common stock
   (Note 9)................    98,568     621    499,379        --      500,000
  Exercise of stock
   warrants
   (Note 9)................    56,860     358        642        --        1,000
  Net income...............       --      --         --     627,163     627,163
                            --------- ------- ---------- ---------- -----------
BALANCE, December 31,
 1996...................... 2,126,789  13,399  3,342,715  1,286,891   4,643,005
  Issuance of common stock
   (unaudited)............. 1,350,000   8,505  6,077,304        --    6,085,809
  Net income (unaudited)...       --      --         --     300,381     300,381
                            --------- ------- ---------- ---------- -----------
BALANCE, June 30, 1997
 (unaudited)............... 3,476,789 $21,904 $9,420,019 $1,587,272 $11,029,195
                            ========= ======= ========== ========== ===========
</TABLE>
 
 
 
 
        The accompanying notes are an integral part of these statements.
 
                                      F-5
<PAGE>
 
                             PURO WATER GROUP, INC.
 
                            STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                          YEARS ENDED DECEMBER 31,     SIX MONTHS    SIX MONTHS
                          --------------------------      ENDED         ENDED
                              1995          1996      JUNE 30, 1996 JUNE 30, 1997
                          ------------  ------------  ------------- -------------
                                                       (UNAUDITED)   (UNAUDITED)
<S>                       <C>           <C>           <C>           <C>
CASH FLOWS FROM
 OPERATING ACTIVITIES:
  Net income............  $    403,903  $    627,163   $   236,461   $   300,380
  Adjustments to
   reconcile net income
   to net cash provided
   by operating
   activities:
  Depreciation and
   amortization.........       451,373       991,932       445,989       557,823
  Deferred income
   taxes................       187,000       393,000        50,000           --
  Provision for
   allowance for
   doubtful accounts....       (11,026)        5,300        36,195           --
  Changes In Assets And
   Liabilities--
  Increase in accounts
   receivable...........      (535,069)   (1,384,028)     (806,006)     (469,501)
  Increase in
   inventory............       (91,960)     (201,283)      (93,632)      (21,285)
  Increase in prepaid
   expenses and other
   assets...............       (36,516)     (205,394)     (280,912)     (333,168)
  Increase (decrease) in
   accounts payable,
   accrued expenses and
   other liabilities....        (1,363)      337,199       510,939      (410,697)
  Increase in deferred
   income...............        26,386       119,718       110,625           --
                          ------------  ------------   -----------   -----------
    Net cash (used in)
     provided by
     operating
     activities.........       392,728       683,607       209,659      (376,448)
                          ------------  ------------   -----------   -----------
CASH FLOWS FROM INVEST-
 ING ACTIVITIES:
  Purchase of property,
   plant and equipment..    (1,143,105)   (2,802,887)   (1,983,924)     (840,846)
  Advance on
   acquisition..........           --            --       (500,000)          --
  Net assets acquired
   (Note 3).............    (1,683,135)   (5,458,663)   (4,583,085)        1,168
  Sale of building......           --            --            --        989,550
                          ------------  ------------   -----------   -----------
    Net cash provided by
     (used in) investing
     activities.........    (2,826,240)   (8,261,550)   (7,067,009)      149,872
                          ------------  ------------   -----------   -----------
CASH FLOWS FROM FINANC-
 ING ACTIVITIES:
  Proceeds from
   /(repayment of)
   short-term
   borrowings, net......      (100,000)    2,050,000     2,500,000       315,000
  Repayment of capital
   lease obligations....      (149,623)     (192,758)      (93,806)      (89,404)
  Repayment short-term
   debt.................           --            --       (570,868)   (2,050,000)
  Repayment long-term
   debt.................      (373,517)     (727,384)      500,000    (4,334,422)
  Proceeds from long-
   term debt............     1,686,386     5,750,000
  Proceeds from exercise
   of stock warrants....           --          1,000
  Proceeds from sale of
   common stock.........     2,000,000       500,000     4,000,000     6,556,052
  Increase in deferred
   offering costs.......           --       (275,287)
                          ------------  ------------   -----------   -----------
    Net cash provided by
     financing
     activities.........     3,063,246     7,105,571     6,335,326       397,226
                          ------------  ------------   -----------   -----------
NET INCREASE (DECREASE)
 IN CASH................       629,734      (472,372)     (522,024)      170,650
CASH, beginning of peri-
 od.....................        59,598       689,332       689,332       216,960
                          ------------  ------------   -----------   -----------
CASH, end of period.....  $    689,332  $    216,960   $   167,308   $   387,610
                          ------------  ------------   -----------   -----------
SUPPLEMENTAL DISCLOSURE
 OF CASH FLOW
 INFORMATION:
  Cash paid for:
    Interest............  $    302,973  $    719,410   $   317,684   $   463,003
                          ------------  ------------   -----------   -----------
    Income taxes........  $    121,039  $     56,520   $   218,624   $   521,375
                          ------------  ------------   -----------   -----------
SUPPLEMENTAL DISCLOSURE
 OF NONCASH IN VESTING
 AND FINANCING ACTIVI-
 TIES:
  Capital lease
   obligations
   incurred.............  $    113,041  $    127,803   $    80,395   $   100,350
                          ------------  ------------   -----------   -----------
  Deferred offering
   costs not yet paid...  $        --   $    454,647   $       --    $   197,872
                          ------------  ------------   -----------   -----------
</TABLE>
 
        The accompanying notes are an integral part of these statements.
 
                                      F-6
<PAGE>
 
                            PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                            AS OF DECEMBER 31, 1996
 
1. ORGANIZATION AND BUSINESS:
 
  Puro Water Group, Inc. (the "Company"), a Delaware corporation, is a bottler
and distributor of spring and purified drinking water, serving commercial and
residential users in the metropolitan New York area. The Company markets its
drinking water under the brand names Puro, American Eagle Spring Water,
Nature's Best Spring Water and Lectro-Still. The Company also rents and
services water coolers, filtration systems, and plumbed-in fountains located
in businesses, factories and homes in the metropolitan New York area.
 
  On February 1, 1994, the Company, a holding company, completed the
acquisition of all of the outstanding common stock of Puro Corporation of
America, a New York Corporation ("Puro NY"), and LSL Hydro Systems, Inc.
("Hydro"). Immediately, prior to the acquisition, Puro NY and Hydro purchased
stock owned by certain stockholders which represented ownership of 50% of each
of the companies for cash of $1,000,000 and the issuance of $100,000 in notes
payable. The transaction was accounted for under the purchase method with the
purchase price deemed to be $1,500,000 based on the ultimate ownership and
management's estimate of fair value at the time of the acquisition. Because
Hydro and Puro NY had a common control group, that portion of the assets of
the Company attributable to the control group (approximately 26%), were
accounted for as having been acquired at a carryover historical basis of
$31,000. The purchase price has been allocated to the fair market value of the
assets acquired and liabilities assumed which resulted in goodwill of
approximately $1,200,000. This amount is being amortized over fifteen years.
 
2. SIGNIFICANT ACCOUNTING POLICIES:
 
 Management Estimates
 
  The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements, and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
 Inventory
 
  Inventory is stated at the lower of cost or market and cost is determined
using the first-in, first-out method. Inventory is comprised of water coolers
and parts, office refreshment supplies and water.
 
 Property, Plant and Equipment
 
  Property, plant and equipment is stated at historical cost. The Company's
building is depreciated utilizing the straight-line method over 40 years and
equipment is depreciated utilizing the straight-line method over the estimated
useful lives of 8 to 25 years. Equipment held under capital leases is
amortized utilizing the straight-line method over the lesser of the term of
the lease or estimated useful life of the asset in accordance with Statement
of Financial Accounting Standards ("SFAS") No. 13 "Accounting for Leases".
 
 Intangible Assets
 
  Intangible assets are recorded based on the value of certain assets obtained
in the acquisition of other companies and are amortized on the straight-line
method over the following periods:
 
<TABLE>
   <S>                                                               <C>
   Goodwill......................................................... 15-30 years
   Customer lists...................................................     6 years
   Covenants-not-to-compete.........................................   3-7 years
</TABLE>
 
 
                                      F-7
<PAGE>
 
                            PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                     AS OF DECEMBER 31, 1996--(CONTINUED)
  Subsequent to its acquisitions, the Company continually evaluates whether
later events and circumstances have occurred that indicate the remaining
estimated useful life of the intangible assets may warrant revision or that
the remaining balance may not be recoverable. The Company has completed its
first year of operations with Electrified Companies, Inc. and Mountain Spring
Water Co., Inc. and White Mountain Company, Inc. (Note 3). Based on customer
activity, including retention rate, management believes that the useful life
on the goodwill related to these acquisitions should be 30 years. When factors
indicate that intangible assets should be evaluated for possible impairment,
the Company uses an estimate of the undiscounted cash flows over the remaining
life of the intangible assets in measuring whether it is recoverable.
 
 Revenue Recognition
 
  Revenue on sales of bottled water and coolers is recognized upon delivery.
Leases of water coolers and filters are accounted for under the operating
method and, accordingly, rental income is reported over the terms of the
leases.
 
 Income Taxes
 
  The Company accounts for its income taxes under SFAS No. 109, "Accounting
for Income Taxes", which requires recognition of deferred tax liabilities and
assets for the estimated future tax effects of events that have been
recognized in the financial statements or income tax returns. Under this
method, deferred tax liabilities and assets are determined based on
differences between the financial accounting and income tax bases of assets
and liabilities, and the use of carryforwards, if any, using enacted tax rates
in effect for the years in which the differences and carryforwards are
expected to reverse and be utilized.
 
 Earnings Per Share
 
  Earnings per share ("EPS") was computed by dividing net income by the
weighted average number of common share equivalents outstanding during the
respective periods, which includes for all periods, (i) the retroactive effect
of the April 1996 stock split (Note 9) and the reverse stock split, which
occurred upon the consummation of the Company's initial public offering (Note
14), (ii) the sale of 98,568 shares of common stock in May 1996 (Note 9),
(iii) the impact of options held by two stockholders, to purchase 123,210
shares of Common Stock at $5.40 per share (Note 12) and (iv) the impact of the
exercise of 56,860 warrants (Note 9).
 
 New Accounting Pronouncements
 
  During March 1995, the Financial Accounting Standards Board ("FASB") issued
SFAS No. 121, "Accounting for the Impairment of Long Lived Assets", which is
effective for fiscal years beginning after December 15, 1995. The adoption of
this standard did not have an effect on the Company's financial position or
results of operations.
 
  During October 1995, the FASB issued SFAS No. 123, "Accounting for Stock
Based Compensation". This statement establishes financial accounting and
reporting standards for stock-based employee compensation plans. SFAS No. 123
encourages entities to adopt a fair value based method of accounting for stock
compensation plans. However, SFAS No. 123 also permits the Company to continue
to measure compensation costs under pre-existing accounting pronouncements. If
the fair value based method of accounting is not adopted, SFAS No. 123
requires pro forma disclosures of net income and net income per common share
in the notes to financial statements. The accounting requirements of SFAS No.
123 are effective for transactions entered into in fiscal years that begin
after December 15, 1995. The disclosure requirements of SFAS No. 123 are
effective for financial statements for fiscal years beginning after December
15, 1995, or for an earlier fiscal year for which SFAS No. 123 is initially
adopted for recognizing compensation cost.
 
 
                                      F-8
<PAGE>
 
                            PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                     AS OF DECEMBER 31, 1996--(CONTINUED)
  Subsequent to December 31, 1996, the FASB issued SFAS No. 128, "Earnings Per
Share." This statement establishes standards for computing and presenting EPS,
replacing the presentation of currently required primary EPS with a
presentation of Basic EPS. For entities with complex capital structures, the
statement requires the dual presentation of both Basic EPS and Diluted EPS on
the face of the statement of operations. Under this new standard, Basic EPS is
computed based on weighted average shares outstanding and excludes any
potential dilution; Diluted EPS reflects potential dilution from the exercise
or conversion of securities into common stock or from other contracts to issue
common stock and is similar to the currently-required fully diluted EPS. SFAS
128 is effective for financial statements issued for periods ending after
December 15, 1997, including interim periods, and earlier application is not
permitted. When adopted, the Company will be required to restate its EPS data
for all prior periods presented. If this statement had been adopted, the
Company's basic earnings per share, as defined in the statement, would have
been $0.30 and $0.23, respectively, for the years ended December 31, 1996 and
1995.
 
3. ACQUISITIONS:
 
  During 1995, the Company acquired certain assets and assumed certain
liabilities of several companies operating in the bottled water industry. The
acquisitions were paid for with cash and the issuance of notes (Note 7). All
acquisitions have been accounted for under the purchase method and therefore
operations of the companies acquired have been included in the statement of
operations from their respective dates of acquisition. Although the individual
acquisitions were not material to the Company's financial position or results
of operations, the total purchase price for all of the Company's 1995
acquisitions was approximately $2,200,000. Pro forma results of operations
have not been provided as the information was neither readily available nor
material to the Company's overall results of operations. Additionally, the
Company incurred certain non-recurring expenses resulting from the integration
of these acquisitions into the Company's operations which have been reflected
in the Company's statement of operations for the year ended December 31, 1995.
 
  On January 31, 1996, the Company acquired the net assets of Electrified
Companies, Inc., a company operating in the bottled water industry. The
purchase agreement called for total payments to be made to the seller in the
aggregate amount of $5,000,000, payments totaling $437,801 to satisfy two bank
loans of the seller and certain consideration for other outstanding
liabilities. The $5,000,000 was paid through a cash payment of $1,000,000 at
the closing and the issuance of three note payables for $2,900,000, $600,000
and $500,000, respectively, bearing interest at the prime rate (8.25% at
December 31, 1996). Interest payments, only, are due through February 1997,
and then equal monthly principal installments will be made from March 1997
through February 2000. Subsequent to December 31, 1996, and in connection with
the initial public offering of the Company's common stock (Note 14), the
Company paid the $2,900,000 note payable.
 
  Summarized below is the unaudited pro forma results of operations of the
Company for the year ended December 31, 1995 as though this acquisition had
occurred on January 1, 1995. Adjustments have been made for pro forma income
taxes, amortization of intangible assets related to this acquisition and
interest expense as a result of this acquisition. Pro Forma results of
operations of the Company, for the year ended December 31, 1996, are not
provided as the information was not material to the Company's overall results
of operations.
 
<TABLE>
<CAPTION>
                                                             FOR THE YEAR ENDED
                                                             DECEMBER 31, 1995
                                                             ------------------
                                                                (UNAUDITED)
   <S>                                                       <C>
   Pro Forma:
     Revenues...............................................    $10,659,418
     Net income.............................................         91,000
     Earnings per share.....................................    $      0.05
</TABLE>
 
 
                                      F-9
<PAGE>
 
                            PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                     AS OF DECEMBER 31, 1996--(CONTINUED)
  These pro forma results of operations are not necessarily indicative of the
actual results of operations that would have occurred had the acquisition been
made at the beginning of 1995, or of results which may occur in the future.
 
  On June 27, 1996, the Company entered into an agreement to acquire certain
assets of Mountainwood Spring Water Co., Inc., and White Mountain Company,
Inc., (collectively "Mountainwood") both operating in the bottled water
industry. Under the terms of the agreement, the acquisition was effective as
of July 1, 1996. The purchase agreement called for total payments to be made
to the seller in the aggregate amount of $1,250,000 which was comprised of a
cash payment of $500,000 at the closing, and two separate notes payable for
$500,000 and $250,000 bearing interest at 8%. The $500,000 note will have
interest payments through July 1, 1999, at which time a $125,000 principal
payment will be made. Thereafter, and through July 1, 2003, monthly principal
payments of $10,000 will be paid. The principal and interest on the $250,000
note shall be paid through monthly payments of interest only through June 30,
1999, at which time the entire unpaid principal and interest is due (Note 7).
The $500,000 cash payment was borrowed from a bank, and secured by the
Company's majority shareholder, and is included in long-term debt (Note 7) on
the accompanying balance sheet as of December 31, 1996.
 
4. PROPERTY, PLANT AND EQUIPMENT:
 
  Property, plant and equipment are comprised of the following:
 
<TABLE>
<CAPTION>
                                                        DECEMBER 31,  JUNE 30,
                                                            1996        1997
                                                        ------------ -----------
                                                                     (UNAUDITED)
<S>                                                     <C>          <C>
Land and building......................................  $  946,088  $      --
Building improvements..................................     192,818      89,213
Rental equipment.......................................   2,324,508   2,724,508
Vehicles held under capital leases.....................     805,917     825,917
Vehicles...............................................     396,826     666,826
Bottles and crates.....................................     483,634     505,634
Machinery and equipment................................   1,378,176   1,409,964
Furniture and fixtures.................................     194,007     213,662
                                                         ----------  ----------
                                                          6,721,974   6,435,724
Less: Accumulated depreciation.........................     940,969   1,263,994
                                                         ----------  ----------
  Property, plant and equipment, net...................  $5,781,005  $5,171,730
                                                         ==========  ==========
</TABLE>
 
  Depreciation aggregated $555,925 and $262,074, respectively, for the years
ended December 31, 1996 and 1995.
 
 
                                     F-10
<PAGE>
 
                             PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                      AS OF DECEMBER 31, 1996--(CONTINUED)
5. INTANGIBLE ASSETS:
 
  Intangible assets are comprised of the following:
 
<TABLE>
<CAPTION>
                                                        DECEMBER 31,  JUNE 30,
                                                            1996        1997
                                                        ------------ -----------
                                                                     (UNAUDITED)
<S>                                                     <C>          <C>
Goodwill...............................................  $7,749,071  $8,102,196
Covenants-not-to-compete...............................     338,333     338,333
Customer lists.........................................     264,214     264,214
                                                         ----------  ----------
                                                          8,351,618   8,704,743
Less: Accumulated amortization.........................     712,734     941,708
                                                         ----------  ----------
  Intangible assets, net...............................  $7,638,884  $7,763,035
                                                         ==========  ==========
</TABLE>
 
  Amortization expense on intangible assets aggregated $427,115 and $189,299,
respectively, for the years ended December 31, 1996 and 1995.
 
6. SHORT-TERM BORROWINGS:
 
  The Company has a line of credit available with a bank for $3,000,000 as of
December 31, 1996. No amounts were available under the $3,000,000 line of
credit, as the Company converted the outstanding amounts into a $1,550,000
short-term note, described below, and a $1,450,000 note payable which is
included in long-term debt in the accompanying balance sheet (Note 7).
 
  The outstanding amounts on short-term borrowings are as follows:
 
<TABLE>
<CAPTION>
                                                       DECEMBER 31,  JUNE 30,
                                                           1996        1997
                                                       ------------ -----------
                                                                    (UNAUDITED)
<S>                                                    <C>          <C>
Note payable with bank, bearing interest at prime
 plus .25%, due in full on May 31, 1997, secured by a
 letter of credit of $1,500,000 issued by the bank,
 which is guaranteed by the Company's principal
 stockholder.........................................   $1,550,000   $    --
Outstanding amount on line of credit with bank.......          --     365,000
Promissory note payable to bank, bearing interest at
 prime plus .50%, due in full in June 1997, secured
 by a letter of credit which is guaranteed by the
 Company's principal stockholder.....................      500,000        --
Demand note with stockholder with interest at prime
 plus .75%...........................................       50,000        --
                                                        ----------   --------
  Total short-term debt..............................   $2,100,000   $365,000
                                                        ==========   ========
</TABLE>
 
  The prime rate was 8.25% as of December 31, 1996.
 
 
                                      F-11
<PAGE>
 
                             PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                      AS OF DECEMBER 31, 1996--(CONTINUED)
7. LONG-TERM DEBT:
 
  Long-term debt consists of the following:
 
<TABLE>
<CAPTION>
                                                       DECEMBER 31,  JUNE 30,
                                                           1996        1997
                                                       ------------ -----------
                                                                    (UNAUDITED)
<S>                                                    <C>          <C>
BANK FINANCING
Mortgage payable, due in monthly installments of
 $9,941 including interest at 10.75%, balloon payment
 of $886,873 due June 1, 1998, secured by the land
 and building, with a net book value of $897,613.....   $  921,611  $      --
Promissory note payable to bank, bearing interest at
 prime plus .50%, due in monthly installments through
 September 2001, secured by certain fixed assets of
 the Company.........................................    1,446,429   1,417,918
ACQUISITION FINANCING (NOTE 3)
Note payable to bank of $500,000, related to
 Mountainwood acquisition, bearing interest at 8%,
 monthly interest payments only through July 1, 1999,
 principal payment of $125,000 on July 1, 1999 and
 then equal monthly installments through July 1,
 2003................................................      500,000     500,000
Note payable to seller of $250,000, related to
 Mountainwood acquisition, bearing interest at 8%,
 monthly interest payments only through June 30, 1999
 and then balloon payment of full principal due on
 June 30, 1999.......................................      250,000     250,000
Notes payable to seller of $2,900,000 and $600,000,
 related to Electrified Companies, Inc. bearing
 interest at prime rate, interest payments only due
 through February 1997, and then equal monthly
 installments from March 1997 through February 2000..    3,500,000     600,000
Notes payable associated with 1996 and 1995
 acquisition financing, bearing interest at rates
 ranging from 8-9% (certain non-interest bearing
 notes include interest at rates reflecting the
 Company's incremental borrowing rate), due in
 monthly installments through January 2001...........    1,036,786     932,227
STOCKHOLDER NOTES PAYABLE
Loan from stockholder, bearing interest at prime plus
 .75%, due in equal monthly installments commencing
 April 1997 through January 2001.....................      250,000         --
Other notes payable..................................       38,655       3,255
                                                        ----------  ----------
Total................................................    7,943,481   3,703,400
Less: current portion................................    2,040,361   1,000,972
                                                        ----------  ----------
Long-term debt.......................................   $5,903,120  $2,702,428
                                                        ==========  ==========
</TABLE>
 
  Maturities of long-term debt over the next five years are as follows:
 
<TABLE>
   <S>                                                                <C>
   Year Ended December 31,
     1997............................................................ $2,040,361
     1998............................................................  2,924,691
     1999............................................................  1,886,680
     2000............................................................    587,487
     2001 and thereafter.............................................  1,004,262
                                                                      ----------
                                                                      $8,443,481
                                                                      ==========
</TABLE>
 
 
                                      F-12
<PAGE>
 
                            PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                     AS OF DECEMBER 31, 1996--(CONTINUED)
8. INCOME TAXES:
 
  Components of the income tax provision for the year ended December 31, 1996
and 1995 are as follows:
 
<TABLE>
<CAPTION>
                                                      CURRENT  DEFERRED  TOTAL
                                                      -------- -------- --------
   <S>                                                <C>      <C>      <C>
   1996:
     Federal......................................... $106,220 $207,000 $313,220
     State and local.................................   45,000   88,000  133,000
                                                      -------- -------- --------
                                                      $151,220 $295,000 $446,220
                                                      ======== ======== ========
   1995:
     Federal......................................... $ 20,000 $152,000 $172,000
     State and local.................................   24,000   35,000   59,000
                                                      -------- -------- --------
                                                      $ 44,000 $187,000 $231,000
                                                      ======== ======== ========
</TABLE>
 
  The actual tax expense differed from the "expected" amounts by applying the
U.S. Federal income tax rate of 34% as follows:
 
<TABLE>
<CAPTION>
                                                                     1996  1995
                                                                     ----  ----
   <S>                                                               <C>   <C>
   Federal income tax at statutory rate............................. 34%   34%
   Non-deductible goodwill amortization.............................  2%    --
   Purchase accounting reversal.....................................  --   (3%)
   State income taxes net of federal income tax benefit.............  9%    6%
   Other............................................................ (3%)  (1%)
                                                                     ---   ---
     Actual income tax provision.................................... 42%   36%
                                                                     ===   ===
</TABLE>
 
  The net deferred tax liability at December 31, 1996 and 1995 primarily
consists of the differences between depreciation recorded for tax and book
purposes and the allowance for doubtful accounts.
 
9. STOCKHOLDERS' EQUITY:
 
  In October 1995, the Company entered into a Stock Purchase Agreement with
certain stockholders of the Company to purchase 394,272 shares of the
Company's stock for an aggregate purchase price of $2,000,000.
 
 Stock Split
 
  In April 1996, the Company approved an increase in the amount of authorized
common stock from 2,000,000 to 10,000,000 shares and a change in the common
stock par value from $.01 to $.003125. Immediately thereafter, the Company
authorized a 3.2 for 1 stock split on all common stock outstanding. All
information in the accompanying financial statements has been retroactively
restated to give effect to the stock split.
 
 Sale of Common Stock
 
  On May 1, 1996, a third party investor purchased 98,568 shares of common
stock for an aggregate purchase price of $500,000. In November 1996, the
investor was also granted options to purchase 49,284 shares of the Company's
common stock at $5.40 per share. These options are still outstanding.
 
 
                                     F-13
<PAGE>
 
                            PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                     AS OF DECEMBER 31, 1996--(CONTINUED)
 Exercise of Stock Warrants
 
  In October 1996, certain entities, under the control of the Company's
principal stockholder, exercised stock warrants for an aggregate 2.5% of the
outstanding common stock and stock options of the Company, immediately after
said exercise, for a total of $1,000. Said warrants were issued on January 28,
1994, in connection with the initial capitalization of the Company and the
investment in the Company by the holder. The fair market value of the stock
underlying the warrants was $31,000 at the time of issuance. The warrants were
not subject to any restrictions. Pursuant to the exercise of the
aforementioned warrants, the stockholders received a total of 56,860 shares of
common stock.
 
10. CAPITAL LEASE OBLIGATIONS:
 
  The Company is the lessee of certain fixed assets under capital leases
expiring through 2000. The assets and liabilities under capital leases are
recorded at the lower of the present value of minimum lease payments or the
fair market value of the asset. The assets are depreciated over their
estimated useful lives. Interest rates on capital leases vary from 3.5% to
7.00%.
 
  Future minimum payments under these lease agreements are as follows:
 
<TABLE>
   <S>                                                                 <C>
   Year Ended December 31,
     1997............................................................. $220,318
     1998.............................................................  176,192
     1999.............................................................   42,823
     2000.............................................................    7,671
                                                                       --------
       Total minimum lease payments...................................  447,004
   Less: Amount representing interest.................................   28,274
                                                                       --------
   Present value of net minimum lease payments........................ $418,730
                                                                       ========
</TABLE>
 
11. BENEFIT PLANS:
 
  The Company's noncontributory pension plan provides benefits upon the death
or retirement of eligible employees. The Company's policy is to fund the
annual amount deductible for Federal income tax purposes. During 1995, the
Company elected to freeze the plan and accordingly, no further voluntary
contributions will be made on behalf of the Company, however, the Company is
required to make certain payments in order to fund the plan. Such payments
totalled approximately $10,000 and $12,000, respectively, for the years ended
December 31, 1996 and 1995.
 
  The Company maintains a defined contribution savings plan for eligible
employees pursuant to Section 401(k) of the Internal Revenue Code ("IRC").
Pursuant to the plan, employees can contribute a maximum established by the
IRC. Although the Company is not obligated to contribute to the plan, the
Company contributed approximately $10,000 and $2,500 for the years ended
December 31, 1996 and 1995, respectively.
 
12. STOCK-BASED COMPENSATION:
 
  During 1996, the Company adopted the 1996 Stock Option Plan (the "Stock
Option Plan") for the purpose of granting incentive stock options to employees
of the Company. The Company reserved 400,000 shares of common stock for
issuance under the Stock Option Plan.
 
 
                                     F-14
<PAGE>
 
                            PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                     AS OF DECEMBER 31, 1996--(CONTINUED)
  In November 1996, the Company granted options to purchase 49,284 shares of
common stock and 24,642 shares of common stock, respectively, to a principal
stockholder of the Company, who is also a member of the Board of Directors,
and certain entities controlled by him. These options may be exercised 120
days after the closing of the Company's initial public offering over fifty-
four and fifty-seven month periods and are exercisable at $5.40 per share.
Additionally, in November 1996, the Company granted options to purchase 49,284
shares of the Company's common stock at $5.40 per share to another
stockholder, who is also a member of the Board of Directors. These options may
be exercised 120 days after the closing of the Company's initial public
offering over fifty-four month period. All of these options are still
outstanding. No stock options were granted during 1995.
 
  The Company accounts for this plan under APB Opinion No. 25, under which no
compensation cost has been recognized.
 
  Had compensation cost for this plan been determined consistent with SFAS No.
123, the Company's net income and net income per share would have been changed
to the following pro forma amounts:
 
<TABLE>
<CAPTION>
                                                                          1996
                                                                        --------
   <S>                                                                  <C>
   Net income:
     As Reported....................................................... $627,163
     Pro Forma.........................................................  444,884
   Earnings per share:
     As Reported....................................................... $   0.28
     Pro Forma.........................................................     0.20
</TABLE>
 
  Because the SFAS No. 123 method of accounting has not been applied to
options granted prior to January 1, 1995, the resulting pro forma compensation
cost may not be representative of that to be expected in future years.
 
  A summary of the status of the Stock Option Plan at December 31, 1996, and
changes during the year then ended, is presented in the table and narrative
below:
 
<TABLE>
<CAPTION>
                                                                 1996
                                                       ------------------------
                                                               WEIGHTED AVERAGE
                                                       SHARES   EXERCISE PRICE
                                                       ------- ----------------
   <S>                                                 <C>     <C>
   Outstanding at beginning of year...................     --         n/a
   Granted............................................ 123,210      $5.40
   Exercised..........................................     --         --
   Forfeited..........................................     --         --
   Outstanding at end of year......................... 123,210       5.40
   Exercisable at end of year.........................     --         n/a
   Weighted average fair value of options granted..... $  1.48        n/a
</TABLE>
 
  The fair value of each option grant is estimated on the date of grant using
the Black-Scholes option pricing model with the following weighted-average
assumptions used for grants in 1996: risk-free interest rates of 5.61%;
expected dividend yields of 0%; expected lives of 1 year; expected stock price
volatility of 64%.
 
 
                                     F-15
<PAGE>
 
                            PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                     AS OF DECEMBER 31, 1996--(CONTINUED)
13. COMMITMENTS:
 
 Leases
 
  As of December 31, 1996, the Company had leased certain office and warehouse
space. Leases for this space expire through March 2001, and call for annual
rent with immaterial escalations through the end of the leases. The Company
has also entered into several operating leases for office equipment.
 
  Future minimum payments for operating leases at December 31, 1996 are as
follows:
 
<TABLE>
   <S>                                                                  <C>
   Year ended December 31,
     1997.............................................................. $282,407
     1998..............................................................  261,764
     1999..............................................................  253,843
     2000..............................................................  259,310
     2001 and thereafter...............................................  765,669
</TABLE>
 
  Rental expense for the years ended December 31, 1996 and 1995 was $295,659
and $139,660, respectively.
 
 Employment Agreements
 
  The Company has entered into employment agreements with its President and
Chief Executive Officer. The President's agreement provides for an annual base
salary of $100,000 for a term of five years. The agreement may be extended at
the sole discretion of the Board of Directors upon the same terms and
conditions. In the event that the Board of Directors does not extend the term
of the agreement and a mutually acceptable alternative agreement cannot be
negotiated with the Board of Directors upon the expiration of this agreement,
the President will be entitled to a severance payment equal to two times his
annual base salary. The Chief Executive Officer's agreement will provide for
an annual base salary of $187,000 for a term of five years. The agreement may
be extended at the sole discretion of the Board of Directors upon the same
terms and conditions. In the event that the Board of Directors does not extend
the term of the agreement and a mutually acceptable alternative agreement
cannot be negotiated with the Board of Directors upon the expiration of this
agreement, the Chief Executive Officer will be entitled to a severance payment
equal to three times his annual base salary.
 
14. SUBSEQUENT EVENTS:
 
 Initial Public Offering
 
  On February 7, 1997, the Company completed an initial public offering of its
common stock. The offering resulted in the sale of 1,350,000 shares of common
stock at $6.00 per share, less underwriters discounts and commissions, for
total net proceeds of approximately $6,086,000. The Company used a portion of
the proceeds of the offering to repay approximately $5,300,000 of the
acquisition and bank financing, described in Note 7, outstanding at December
31, 1996. The supplementary earnings per share for the year ended December 31,
1996, which follows, gives supplemental effect to the issuance of 749,226
shares of common stock for the entire period during which the acquisition and
bank financing was outstanding, which is the number of shares issued in the
initial public offering, the proceeds of which were used to repay
approximately $5,300,000 of debt outstanding at December 31, 1996, as well as
to effect the reduction of related interest expense for the year then ended.
These shares are presumed outstanding for supplementary purposes only, and
were neither issued nor outstanding for any purpose during the year ended
December 31, 1996.
 
 
                                     F-16
<PAGE>
 
                            PURO WATER GROUP, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
 
                     AS OF DECEMBER 31, 1996--(CONTINUED)
<TABLE>
<CAPTION>
                                                            FOR THE YEAR ENDED
                                                            DECEMBER 31, 1996
                                                            ------------------
   <S>                                                      <C>
   Supplementary earnings per share........................     $    0.29
   Supplementary weighted average common shares
    outstanding............................................     2,986,905
</TABLE>
 
 Reverse Stock Split and Recapitalization
 
  In connection with the initial public offering described above, the Company
effected a recapitalization whereby the presently outstanding common stock was
converted to shares of common stock on a .4928 to 1 share basis and the common
stock par value was converted from $.003125 to $.0063. All information
contained in the accompanying financial statements and footnotes has been
retroactively restated to give effect to these transactions.
 
15. UNAUDITED INTERIM FINANCIAL INFORMATION:
 
  The unaudited financial information included herein for the six months ended
June 30, 1996 and 1997 has been prepared in accordance with generally accepted
accounting principles for interim financial information. In the opinion of the
Company, these unaudited financial statements reflect all adjustments
necessary, consisting of normal recurring adjustments, for a fair presentation
of such data on a basis consistent with that of the audited data presented
herein. The results of operations for interim periods are not necessarily
indicative of the results to be expected for a full year.
 
16. EVENTS (UNAUDITED) OCCURRING SUBSEQUENT TO THE DATE OF REPORT OF
   INDEPENDENT PUBLIC ACCOUNTANTS:
 
  On October 8, 1997, the Company entered into an agreement and plan of merger
with USF/PW Acquisition Corporation ("Sub"), a wholly owned subsidiary of
United States Filter Corporation ("US Filter"). Pursuant to the agreement, the
Sub would merge with and into the Company and the Company will become a wholly
owned subsidiary of US Filter. Under the terms of the agreement, each existing
holder of the Company's common stock, will have the right to convert each
share into a fraction of US Filter common stock determined by dividing $7.20
by the average market price of the US Filter common stock during the 10
consecutive trading days beginning on the 16th trading day prior to a special
meeting of the Company's shareholders.
 
                                     F-17
<PAGE>
 
 
                                                                         ANNEX A
 
                          AGREEMENT AND PLAN OF MERGER
 
                          DATED AS OF OCTOBER 8, 1997
 
                                     AMONG
 
                       UNITED STATES FILTER CORPORATION,
 
                         USF/PW ACQUISITION CORPORATION
 
                                      AND
 
                             PURO WATER GROUP, INC.
 
                                      A-1
<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                        PAGE
                                                                        ----
<S>             <C>                                                     <C>
ARTICLE I       THE MERGER
   Section 1.01 Effective Time of the Merger...........................  A-5
   Section 1.02 Closing................................................  A-5
   Section 1.03 Effects of the Merger..................................  A-5
ARTICLE II      CONVERSION OF SECURITIES
   Section 2.01 Conversion of Capital Stock............................  A-6
   Section 2.02 Exchange of Certificates...............................  A-6
   Section 2.03 No Further Transfers...................................  A-7
   Section 2.04 No Fractional Shares...................................  A-7
   Section 2.05 Anti-Dilution Provisions...............................  A-8
   Section 2.06 Stock Legends; Agreements by Certain Stockholders......  A-8
   Section 2.07 Company Stock Option Plans.............................  A-8
   Section 2.08 Options................................................  A-8
   Section 2.09 Underwriter's Warrant..................................  A-9
   Section 2.10 Convertible Notes......................................  A-9
ARTICLE III     REPRESENTATIONS AND WARRANTIES OF THE COMPANY
   Section 3.01 Organization...........................................  A-9
   Section 3.02 Capitalization.........................................  A-9
   Section 3.03 Charter Documents...................................... A-10
   Section 3.04 Subsidiaries........................................... A-10
   Section 3.05 Authority; No Conflict; Required Filings and Consents.. A-10
   Section 3.06 SEC Filings; Financial Statements...................... A-11
   Section 3.07 Indebtedness; Absence of Undisclosed Liabilities....... A-11
   Section 3.08 Absence of Certain Changes or Events................... A-12
   Section 3.09 Tax Matters............................................ A-12
   Section 3.10 Certain Transactions................................... A-13
   Section 3.11 Required Authorizations................................ A-13
   Section 3.12 Litigation............................................. A-13
   Section 3.13 Compliance with Law; Regulatory Compliance............. A-13
   Section 3.14 Contracts.............................................. A-14
   Section 3.15 Real Property.......................................... A-14
   Section 3.16 Personal Property...................................... A-14
   Section 3.17 Intellectual Property Rights........................... A-15
   Section 3.18 Environmental Matters.................................. A-15
   Section 3.19 Products Liability..................................... A-16
   Section 3.20 Insurance.............................................. A-16
   Section 3.21 Employment and Change in Control Agreements............ A-16
   Section 3.22 Labor Relations........................................ A-16
   Section 3.23 Employee Benefit Plans................................. A-16
   Section 3.24 Pooling of Interests................................... A-18
   Section 3.25 Registration Statement; Proxy Statement/Prospectus..... A-18
   Section 3.26 Certain Fees........................................... A-18
   Section 3.27 Section 203 of the DGCL Not Applicable................. A-18
   Section 3.28 Disclosure............................................. A-18
</TABLE>
 
                                      A-2
<PAGE>
 
<TABLE>
<CAPTION>
                                                                             PAGE
                                                                             ----
<S>             <C>                                                          <C>
ARTICLE IV      REPRESENTATIONS AND WARRANTIES OF USF AND SUB
   Section 4.01 Organization of USF and Sub................................. A-18
   Section 4.02 Capitalization of USF and Sub............................... A-19
   Section 4.03 Authority; No Conflict; Required Filings and Consents....... A-19
   Section 4.04 SEC Filings; Financial Statements........................... A-20
   Section 4.05 Absence of Certain Changes or Events........................ A-20
   Section 4.06 Litigation.................................................. A-20
   Section 4.07 Registration Statement; Proxy Statement/Prospectus.......... A-20
   Section 4.08 Interim Operations of Sub................................... A-21
ARTICLE V       COVENANTS
   Section 5.01 No Solicitation............................................. A-21
   Section 5.02 Stockholder Approval........................................ A-21
   Section 5.03 Conduct of the Business of the Company...................... A-22
   Section 5.04 Access to Information....................................... A-23
   Section 5.05 Required Authorizations..................................... A-24
   Section 5.06 Financial Statements of the Company......................... A-24
   Section 5.07 Public Announcements........................................ A-25
   Section 5.08 Benefit Plans............................................... A-25
   Section 5.09 Tax-Free Reorganization..................................... A-25
   Section 5.10 Pooling Accounting.......................................... A-25
   Section 5.11 Affiliate Agreements........................................ A-25
   Section 5.12 Representations, Covenants and Conditions;
                Further Assurances.......................................... A-26
ARTICLE VI      CONDITIONS TO MERGER
   Section 6.01 Conditions to Each Party's Obligation To Effect the Merger.. A-26
   Section 6.02 Additional Conditions to Obligations of USF and Sub......... A-26
   Section 6.03 Additional Conditions to Obligations of the Company......... A-27
ARTICLE VII     TERMINATION AND AMENDMENT
   Section 7.01 Termination................................................. A-28
   Section 7.02 Effect of Termination....................................... A-29
   Section 7.03 Fees and Expenses........................................... A-29
   Section 7.04 Amendment................................................... A-29
   Section 7.05 Extension; Waiver........................................... A-29
ARTICLE VIII    MISCELLANEOUS
   Section 8.01 Nonsurvival of Representations, Warranties and Agreement.... A-30
   Section 8.02 Notices..................................................... A-30
   Section 8.03 Interpretation.............................................. A-31
   Section 8.04 Knowledge................................................... A-31
   Section 8.05 Counterparts................................................ A-31
   Section 8.06 Entire Agreement; No Third Party Beneficiaries.............. A-31
   Section 8.07 Governing Law............................................... A-31
   Section 8.08 Assignment.................................................. A-31
</TABLE>
 
                                      A-3
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                           PAGE
                                                                                           ----
<S>          <C>                                                                           <C>
ANNEX 1      DEFINITIONS
   EXHIBIT A Amended and Restated Certificate of Incorporation of Puro Water Group, Inc... A-37
   EXHIBIT B Form of Puro Water Group, Inc. Affiliate Agreement........................... A-38
</TABLE>
- -
 
                                      A-4
<PAGE>
 
                         AGREEMENT AND PLAN OF MERGER
 
  Agreement and Plan of Merger ("Agreement"), dated as of October 8, 1997, by
and among United States Filter Corporation, a Delaware corporation ("USF"),
USF/PW Acquisition Corporation, a Delaware corporation and a wholly owned
subsidiary of USF ("Sub"), and Puro Water Group, Inc., a Delaware corporation
(the "Company"). The Company and Sub are the only parties to the merger hereby
contemplated and are sometimes referred to herein as the "Constituent
Corporations", and the Company is sometimes referred to herein as the
"Continuing Corporation".
 
  Whereas, the respective Boards of Directors of the Constituent Corporations
have approved this Agreement and deem it advisable and in the best interests
of their respective corporations and stockholders that Sub merge with and into
the Company on the terms and conditions herein set forth, whereby the Company
will become a wholly owned subsidiary of USF and the stockholders of the
Company will become stockholders of USF (the "Merger");
 
  Whereas, concurrently with the execution and delivery of this Agreement and
as a condition and inducement to USF's willingness to enter into this
Agreement, Peter T. Dixon, The Trusts Under Article 16 of the Will of W.
Palmer Dixon for the Benefit of Peter T. and Palmer Dixon (the "Dixon
Trusts"), Beth Levy, Scott Levy, Jack C. West and Edberg Associates Limited
Partnership, each of whom is a stockholder of the Company ("Stockholders"),
have entered into Stockholder Agreements (the "Stockholder Agreements") with
USF pursuant to which the Stockholders have agreed to vote their shares of
Common Stock, $.0063 par value, of the Company ("Company Common Stock") in
favor of the Merger;
 
  Whereas, for United States federal income tax purposes, it is intended that
the Merger shall qualify as a reorganization within the meaning of Section
368(a) of the Internal Revenue Code of 1986, as amended (the "Code"); and
 
  Whereas, for financial accounting purposes, it is intended that the Merger
shall be accounted for as a pooling of interests.
 
  Now, Therefore, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth below, the
parties agree as follows:
 
                                   ARTICLE I
 
                                  THE MERGER
 
  Section 1.01 Effective Time of the Merger. Subject to the provisions of this
Agreement, a certificate of merger (the "Certificate of Merger") in such form
as is required by the relevant provisions of the Delaware General Corporation
Law ("DGCL") shall be duly prepared, executed and acknowledged by the
Continuing Corporation and thereafter delivered to the Secretary of State of
the State of Delaware, for filing, as provided in the DGCL, as soon as
practicable on or after the Closing Date. The Merger shall become effective
upon the filing of the Certificate of Merger with the Secretary of State of
the State of Delaware or at such time thereafter as is provided in the
Certificate of Merger (the "Effective Time").
 
  Section 1.02 Closing The closing of the Merger (the "Closing") will take
place at 10:00 a.m., prevailing time, on a date to be specified by USF and the
Company, which shall be as soon as practicable after all of the conditions to
the Merger set forth in Article VI have been satisfied or waived, subject to
the rights of termination and abandonment hereinafter set forth (the "Closing
Date"), at a place mutually agreed to in writing by USF and the Company.
 
  Section 1.03 Effects of the Merger.
 
  (a) At the Effective Time (i) the separate existence of Sub shall cease and
Sub shall be merged with and into the Company, (ii) the Certificate of
Incorporation of the Continuing Corporation shall be amended to read in
 
                                      A-5
<PAGE>
 
its entirety as set forth in Exhibit A, (iii) the Bylaws of the Company as in
effect immediately prior to the Effective Time shall be the Bylaws of the
Continuing Corporation, and (iv) the directors of Sub at the Effective Time
shall be the directors of the Continuing Corporation and hold office as
provided in the Bylaws of the Continuing Corporation.
 
  (b) The Merger will have the effects specified in the DGCL. Without limiting
the generality of the foregoing, and subject thereto, at the Effective Time,
all of the properties, rights, privileges, powers, franchises, debts,
liabilities, obligations and duties of the Constituent Corporations will
continue in the Surviving Corporation unaffected by the Merger.
 
                                  ARTICLE II
 
                           CONVERSION OF SECURITIES
 
  Section 2.01 Conversion of Capital Stock. As of the Effective Time, by
virtue of the Merger and without any action on the part of the holder of any
shares of Company Common Stock or capital stock of Sub:
 
  (a) Each issued and outstanding share of the capital stock of Sub shall be
converted into and become one fully paid and nonassessable share of Common
Stock, par value $.01 per share, of the Continuing Corporation.
 
  (b) Subject to Section 2.01(c) hereof, each issued and outstanding share of
Company Common Stock, but other than shares of Company Common Stock issued and
held in the treasury of the Company or owned of record by USF, Sub or any
direct or indirect subsidiary thereof, shall be converted into and shall
become, by virtue of the Merger and without any further action by the holder
thereof that certain fraction of a share of Common Stock of USF, par value
$.01 per share ("USF Common Stock") (subject to adjustment as provided in
Section 2.01(c)) as shall be determined by dividing $7.20 (the "Per Share
Purchase Price") by the "average market price" of the USF Common Stock during
the 10 consecutive trading day period beginning on the 16th trading day prior
to the Stockholders' Meeting (rounding the result to two decimal places). The
"average market price" of a share of USF Common Stock shall be calculated by
(x) averaging the high and low per share sale prices for each trading day
during such period on which there were any trades in USF Common Stock, (y)
adding such daily averages together, and (z) dividing the sum by 10 (reduced
by the number of such trading days during which there were no trades). In such
"average market price" calculations, numbers shall be carried to four decimal
places. The daily high and low per share sale prices shall be those on the New
York Stock Exchange Composite Tape.
 
  (c) Each share of Company Common Stock issued and held in the treasury of
the Company or owned of record by USF, Sub or any direct or indirect
subsidiary thereof immediately prior to the Effective Time shall automatically
be canceled and retired without any conversion thereof, and no cash shall be
exchangeable therefor.
 
  Section 2.02 Exchange of Certificates.
 
  (a) After the Effective Time, each holder of a certificate formerly
evidencing shares of Company Common Stock which have been converted pursuant
to Section 2.01(b), upon surrender of the same to American Stock Transfer &
Trust Company or another exchange agent selected by USF and reasonably
satisfactory to the Company (the "Exchange Agent") as provided in Section
2.02(b) hereof, shall be entitled to receive in exchange therefor (i) a
certificate or certificates representing the number of whole shares of USF
Common Stock into which such shares of Company Common Stock shall have been
converted as provided in this Article II and (ii) as provided in Section 2.04,
cash in lieu of any fractional share of USF Common Stock into which such
shares of Company Common Stock would have otherwise been converted, without
any interest thereon. Until so surrendered, each certificate formerly
evidencing shares of Company Common Stock which have been so converted will be
deemed for all corporate purposes of USF to evidence ownership of the number
of whole shares of USF Common Stock for which the shares of Company Common
Stock formerly represented thereby were exchanged and the right to receive
cash as herein provided, without any interest thereon; provided, however, that
until such certificate is so surrendered, no dividend payable to holders of
record of USF Common Stock as
 
                                      A-6
<PAGE>
 
of any date subsequent to the Effective Time shall be paid to the holder of
such certificate in respect of the shares of USF Common Stock evidenced
thereby and such holder shall not be entitled to vote such shares of USF
Common Stock. Upon surrender of a certificate formerly evidencing shares of
Company Common Stock which have been so converted, there shall be paid to the
record holder of the certificates of USF Common Stock issued in exchange
therefor (i) at the time of such surrender, the amount of dividends and any
other distributions with a record date after the Effective Time and
theretofore paid with respect to such shares of USF Common Stock to the extent
the same has not yet been paid to a public official pursuant to abandoned
property, escheat or similar laws and (ii) at the appropriate payment date,
the amount of dividends and any other distributions with a record date after
the Effective Time but prior to surrender and a payment date subsequent to
surrender payable with respect to such shares of USF Common Stock. No interest
shall be payable with respect to the payment of such dividends or
distributions.
 
  (b) As soon as practicable after the Effective Time, the Exchange Agent
shall send a notice and a transmittal form to each holder of certificates
formerly evidencing shares of Company Common Stock (other than certificates
formerly representing shares of Company Common Stock to be canceled pursuant
to Section 2.01(c)) advising such holder of the effectiveness of the Merger
and the procedure for surrendering to the Exchange Agent (who may appoint
forwarding agents with the approval of USF) such certificates for exchange
into certificates evidencing USF Common Stock (including cash in lieu of any
fractional share). Each holder of certificates theretofore evidencing shares
of Company Common Stock, upon proper surrender thereof to the Exchange Agent
together and in accordance with such transmittal form, shall be entitled to
receive in exchange therefor certificates evidencing USF Common Stock
(including cash in lieu of any fractional share) deliverable in respect of the
shares of Company Common Stock theretofore evidenced by the certificates so
surrendered. Notwithstanding the foregoing, neither the Exchange Agent nor any
party hereto shall be liable to a holder of certificates theretofore
representing shares of Company Common Stock for any amount which may be
required to be paid to a public official pursuant to any applicable abandoned
property, escheat or similar law.
 
  (c) If any certificate evidencing shares of USF Common Stock is to be
delivered to a person other than the person in whose name the certificates
surrendered in exchange therefor are registered, it shall be a condition to
the issuance of such certificate evidencing shares of USF Common Stock that
the certificates so surrendered shall be properly endorsed or accompanied by
appropriate stock powers and otherwise in proper form for transfer, that such
transfer otherwise be proper and that the person requesting such transfer pay
to the Exchange Agent any transfer or other taxes payable by reason of the
foregoing or establish to the satisfaction of the Exchange Agent that such
taxes have been paid or are not required to be paid.
 
  (d) In the event any certificate shall have been lost, stolen or destroyed,
upon the making of an affidavit of that fact by the person claiming such
certificate to be lost, stolen or destroyed, the Continuing Corporation will
issue in exchange for such lost, stolen or destroyed certificate the
certificate evidencing shares of USF Common Stock deliverable in respect
thereof, as determined in accordance with this Article II. When authorizing
such issue of the certificate of shares of USF Common Stock in exchange
therefor, the Board of Directors of the Continuing Corporation may, in its
discretion and as a condition precedent to the issuance thereof, require the
owner of such lost, stolen or destroyed certificate to give the Continuing
Corporation a bond in such sum as it may direct as indemnity against any claim
that may be made against the Continuing Corporation with respect to the
certificate alleged to have been lost, stolen or destroyed.
 
  (e) Adoption of this Agreement by the stockholders of the Company shall
constitute, as an integral part of the Merger, ratification of the appointment
of, and the reappointment of, said Exchange Agent.
 
  Section 2.03 No Further Transfers. After the Effective Time, there shall be
no registration of transfers of shares on the stock transfer books of the
Company of the shares of Company Common Stock that were outstanding
immediately prior to the Effective Time.
 
  Section 2.04 No Fractional Shares. Neither certificates nor scrip for
fractional shares of USF Common Stock will be issued, but in lieu thereof each
holder of Company Common Stock otherwise entitled to a fraction of a share of
USF Common Stock shall receive from USF an amount in cash equal to the average
of the high
 
                                      A-7
<PAGE>
 
and low per share sale prices of a share of USF Common Stock on the New York
Stock Exchange Composite Tape for the day of the Effective Time, multiplied by
the fraction of a share of USF Common Stock to which such stockholder would be
otherwise entitled. No USF stock split or dividend shall relate to any
fractional share interest, and no such fractional share interest shall entitle
the owner thereof to vote or to any rights of a stockholder of USF.
 
  Section 2.05 Anti-Dilution Provisions. In the event USF changes the number
of shares of USF Common Stock issued and outstanding prior to the Effective
Time as a result of a stock split, stock dividend or similar recapitalization
with respect to such stock and the record date therefor (in the case of a
stock dividend) or the effective date thereof (in the case of a stock split or
similar capitalization for which a record date is not established) shall be
prior to the Effective Time, the Per Share Purchase Price shall be
proportionately adjusted to reflect such stock split, stock dividend or other
recapitalization.
 
  Section 2.06 Stock Legends; Agreements by Certain Stockholders. Certificates
representing shares of USF Common Stock issued to persons deemed to be
affiliates of the Company (as that term is used for purposes of Rule 145 under
the United States Securities Act of 1933, as amended (the "Securities Act"))
on the date of the Stockholders' Meeting shall bear the legend set forth in
paragraph E of Exhibit B hereto.
 
  Section 2.07 Company Stock Option Plans.
 
  (a) At the Effective Time, each outstanding option to purchase shares of
Company Common Stock (an "Employee Stock Option") under the Company 1996 Stock
Option Plan (the "Employee Stock Option Plan"), whether or not exercisable,
shall be deemed to constitute an option to acquire, on the same terms and
conditions as were applicable under such Employee Stock Option, the same
number of shares of USF Common Stock as the holder of such Employee Stock
Option would have been entitled to receive pursuant to the Merger had such
holder exercised such option in full immediately prior to the Effective Time,
at a price per share equal to (y) the aggregate exercise price for the shares
of Company Common Stock deemed otherwise purchasable pursuant to such Employee
Stock Option divided by (z) the number of full shares of USF Common Stock
deemed purchasable pursuant to such Employee Stock Option; provided, however,
that, in the case of any Employee Stock Option to which Section 421 of the
Code applies by reason of its qualification under any of Sections 422-424 of
the Code ("qualified stock options"), the option price, the number of shares
purchasable pursuant to such option and the terms and conditions of exercise
of such option shall be determined in order to comply with Section 425(a) of
the Code.
 
  (b) At the Effective Time, each outstanding option to purchase shares of
Company Common Stock (a "Director Stock Option") under the Director Stock
Option Plan (the "Director Stock Option Plan"), whether or not exercisable,
shall be deemed to constitute an option to acquire, on the same terms and
conditions as were applicable under such Director Stock Option, the same
number of shares of USF Common Stock as the holder of such Director Stock
Option would have been entitled to receive pursuant to the Merger had such
holder exercised such option in full immediately prior to the Effective Time,
at a price per share equal to (y) the aggregate exercise price for the shares
of Company Common Stock deemed otherwise purchasable pursuant to such Director
Stock Option divided by (z) the number of full shares of USF Common Stock
deemed purchasable pursuant to such Director Stock Option.
 
  Section 2.08 Options. At the Effective Time, each outstanding option to
purchase Company Common Stock listed on Schedule 2.08 ("Non-Employee
Options"), whether or not exercisable, shall be deemed to constitute an option
to acquire, on the same terms and conditions as were applicable under each
respective Non-Employee Option, the same number of shares of USF Common Stock
as the holder of such Non-Employee Option would have been entitled to receive
pursuant to the Merger had such holder exercised such option in full
immediately prior to the Effective Time, at a price per share equal to (y) the
aggregate exercise price for the shares of Company Common Stock deemed
otherwise purchasable pursuant to such Non-Employee Option divided by (z) the
number of full shares of USF Common Stock deemed purchasable pursuant to such
Non-Employee Stock Option.
 
                                      A-8
<PAGE>
 
  Section 2.09 Underwriter's Warrant. At the Effective Time, the Underwriter's
Common Stock Purchase Warrant dated as of February 7, 1997 (the "Underwriter's
Warrant") shall be deemed to constitute the right to acquire, on the same
terms and conditions as were applicable under such Underwriter's Warrant, the
same number of shares of USF Common Stock as the holder of such Underwriter's
Warrant would have been entitled to receive pursuant to the Merger had such
holder exercised such Underwriter's Warrant in full immediately prior to the
Effective Time, at an exercise price per share equal to (y) the aggregate
exercise price for the shares of Company Common Stock deemed otherwise
purchasable pursuant to such Underwriter's Warrant divided by (z) the number
of full shares of USF Common Stock deemed purchasable pursuant to such
Underwriter's Warrant.
 
  Section 2.10 Convertible Notes. At the Effective Time, the Notes of the
Company listed on Schedule 2.10 (the "Convertible Notes") shall be deemed to
be convertible, on the same terms and conditions as were applicable under each
respective Convertible Note, into the same number of shares of USF Common
Stock as the holders of each such Convertible Note would have been entitled to
receive pursuant to the Merger had such holders converted such Convertible
Notes in full immediately prior to the Effective Time, at a conversion price
per share equal to (y) the conversion price for the shares of Company Common
Stock deemed otherwise purchasable pursuant to each respective Convertible
Note divided by (z) the number of full shares of USF Common Stock deemed
purchasable pursuant to each such Convertible Note.
 
                                  ARTICLE III
 
                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY
 
  The Company hereby represents and warrants to USF and Sub as follows:
 
  Section 3.01 Organization. The Company is a corporation duly organized,
validly existing and in good standing under the laws of the State of Delaware,
has all requisite corporate power to own, lease and operate its property and
to carry on its business as now being conducted, and is duly qualified to do
business and is in good standing as a foreign corporation in each jurisdiction
in which the failure to be so qualified would have a material adverse effect
on the business, assets (including intangible assets), condition (financial or
otherwise), results of operations or prospects ("Material Adverse Effect") of
the Company.
 
  Section 3.02 Capitalization.
 
  (a) The authorized capital stock of the Company consists of 10,000,000
shares of Common Stock, $.0063 par value per share. As of August 31, 1997, (i)
3,476,789 shares of Company Common Stock were issued and outstanding, all of
which are validly issued, fully paid and nonassessable, (ii) no shares of
Company Common Stock were held in the treasury of the Company, (iii) 400,000
shares of Company Common Stock were reserved for issuance pursuant to stock
options granted and outstanding under the Employee Stock Option Plan, (iv)
30,000 shares of Company Common Stock were reserved for issuance pursuant to
stock options granted and outstanding under the Director Stock Option Plan,
(v) 121,068 shares of Company Common Stock were reserved for issuance pursuant
to the Non-Employee Options, (vi) 135,000 shares of Company Common Stock were
reserved for issuance pursuant to the Underwriter's Warrant, (vii) 80,165
shares of Company Common Stock were reserved for issuance pursuant to the
Convertible Notes and (viii) 32,000 shares of Company Common Stock were
reserved for issuance pursuant to the Savoy Asset Purchase Agreement. All
shares of Company Common Stock subject to issuance as specified above, upon
issuance on the terms and conditions specified in the instruments pursuant to
which they are issuable, will be duly authorized, validly issued, fully paid
and nonassessable.
 
  (b) There are no obligations, contingent or otherwise, of the Company to
repurchase, redeem or otherwise acquire any shares of Company Common Stock or
to provide funds to or make any investment (in the form of a loan, capital
contribution or otherwise) in any other entity.
 
  (c) Except for restrictions on transfer arising under the Federal securities
laws, included in the Stockholders Agreements or as described in Schedule
3.02, there are no existing restrictions on transfer, voting
 
                                      A-9
<PAGE>
 
trusts, stockholder agreements or registration covenants known to the Company
relating to any outstanding shares of capital stock of the Company. None of
the outstanding shares of Company Common Stock was issued in violation of the
preemptive rights of any present or former stockholder and the Company's
stockholders are not entitled to preemptive rights.
 
  (d) Except as set forth in this Section 3.02, there are no equity securities
of any class of the Company, or any security exchangeable into or exercisable
for such equity securities, issued, reserved for issuance or outstanding.
Except as set forth in this Section 3.02 or in Schedule 3.02, there are no
options, warrants, equity securities, calls, rights, commitments or agreements
of any character to which the Company is a party or by which it is bound
obligating the Company to issue, deliver or sell, or cause to be issued,
delivered or sold, additional shares of capital stock of the Company or
obligating the Company to grant, extend, accelerate the vesting of or enter
into any such option, warrant, equity security, call, right, commitment or
agreement. Except for the Stockholder Agreements, there are no voting trusts,
proxies or other agreements or understandings with respect to the shares of
capital stock of the Company.
 
  Section 3.03 Charter Documents. The copies of the Certificate of
Incorporation of the Company, as amended, and Amended and Restated Bylaws of
the Company as currently in effect, are complete and correct.
 
  Section 3.04 Subsidiaries. Except as set forth on Schedule 3.04, the Company
does not directly or indirectly own any equity or similar interest in, or any
interest convertible into or exchangeable or exercisable for, any corporation,
partnership, joint venture or other business association or entity.
 
  Section 3.05 Authority; No Conflict; Required Filings and Consents.
 
  (a) The Company has all requisite corporate power and authority to enter
into this Agreement and to consummate the transactions contemplated hereby and
thereby. The execution and delivery of this Agreement and the consummation of
the transactions contemplated hereby and thereby have been duly authorized by
all necessary corporate action on the part of the Company, subject only (in
the case of this Agreement) to the approval of this Agreement and the Merger
by the Company's stockholders under the DGCL. The Board of Directors of the
Company (the "Company Board") has directed that this Agreement and the Merger
be submitted to the stockholders for adoption, in accordance with the law of
the State of Delaware and the Company's Certificate of Incorporation, as
amended, and Amended and Restated Bylaws, and has recommended that the
stockholders of the Company approve and adopt this Agreement and the Merger.
This Agreement has been duly executed and delivered by the Company and,
assuming the due authorization, execution and delivery by USF and Sub,
constitute the valid and binding obligations of the Company, enforceable in
accordance with their respective terms, except as such enforceability may be
limited by (i) bankruptcy, insolvency, reorganization, moratorium or other
similar laws affecting or relating to creditors rights generally and (ii) the
availability of injunctive relief and other equitable remedies.
 
  (b) The execution and delivery of this Agreement by the Company does not,
and the consummation of the transactions contemplated hereby and thereby will
not, (i) conflict with, or result in any violation or breach of any provision
of the Certificate of Incorporation, as amended or Amended and Restated Bylaws
of the Company, (ii) result in any violation or breach of, or constitute (with
or without notice or lapse of time, or both) a default (or give rise to a
right of termination, cancellation or acceleration of any obligation or loss
of any material benefit) under any of the terms, conditions or provisions of
any note, bond, mortgage, indenture, lease, contract or other agreement,
instrument or obligation to which the Company is a party or pursuant to which
it or any of its properties or assets may be bound, or (iii) subject to
obtaining the approval of the Company's stockholders of the Merger and
compliance with the requirements set forth in Section 3.05(c) below, conflict
with or violate any permit, concession, franchise, license, judgment, order,
decree, statute, law, ordinance, rule or regulation applicable to the Company
or any of its properties or assets, except in the case of (ii) and (iii) for
any such conflicts, violations, defaults, terminations, cancellations or
accelerations which would not have a Material Adverse Effect on the Company.
 
                                     A-10
<PAGE>
 
  (c) No consent, approval, order or authorization of, or registration,
declaration or filing with any Governmental Authority is required by or with
respect to the Company in connection with the execution and delivery of this
Agreement or the consummation of the transactions contemplated hereby and
thereby, except for (i) the filing of the Certificate of Merger with the
Delaware Secretary of State, (ii) the filing of the Proxy Statement with the
United States Securities and Exchange Commission ("SEC") in accordance with
the United States Securities Exchange Act of 1934, as amended (the "Exchange
Act"), and (iii) such consents, approvals, orders, authorizations,
registrations, declarations and filings as may be required under applicable
state securities laws and the laws of any country.
 
  Section 3.06 SEC Filings; Financial Statements.
 
  (a) The Company has filed all forms, reports and documents required to be
filed by the Company with the SEC and has previously furnished to USF a true
and complete copy of each of (i) its Prospectus dated February 7, 1997, (ii)
its Annual Report on Form 10-KSB for the year ended December 31, 1996 (iii)
its Quarterly Reports on Form 10-QSB for the periods ended March 31, 1997 and
June 30, 1997, and (iv) all other reports or other correspondence filed by it
with the SEC pursuant to the Exchange Act, since January 1, 1997, in each case
as filed with the SEC (collectively, together with any forms, reports and
documents filed by the Company with the SEC after the date hereof until the
Closing, the "Company SEC Reports"). Each such report, when filed, complied in
all material respects with the requirements of the Exchange Act and the
applicable rules and regulations thereunder and, as of their respective dates,
none of such reports contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary to
make the statements therein, in light of the circumstances under which they
were made, not misleading.
 
  (b) Each of the financial statements (including, in each case, any related
notes) contained in the Company SEC Reports complied as to form in all
material respects with the applicable rules and regulations of the SEC with
respect thereto, was prepared in accordance with generally accepted accounting
principles applied on a consistent basis throughout the periods involved
(except as may be indicated in the notes to such financial statements) and
fairly presented the financial position of the Company as at the respective
dates and the results of its operations and cash flows for the periods
indicated, except that the unaudited interim financial statements (i) were or
are subject to normal year-end adjustments which were not or are not expected
to be material in amount, and (ii) do not contain footnote disclosure. The
unaudited balance sheet of the Company as of June 30, 1997 is referred to
herein as the "Company Balance Sheet."
 
  Section 3.07 Indebtedness; Absence of Undisclosed Liabilities.
 
  (a) Schedule 3.07 sets forth a list of each instrument which evidences
Indebtedness of the Company, and the aggregate principal amount thereof
outstanding as of the date hereof, and indicates each such instrument that
contains a restriction, limitation or encumbrance, of any kind, on the ability
of the Company to pay dividends on its respective capital stock. The total
aggregate principal amount outstanding as of the date hereof of all such
Indebtedness is $3,671,955.22, which includes $850,000 in face amount of
outstanding letters of credit. Except as set forth in Schedule 3.07, all of
such instruments are in full force and effect and the Company is not in
default thereunder, nor, to the knowledge of the Company, is any other party
to any such instrument in default thereunder, nor, to the knowledge of the
Company, does any condition exist that, with the giving of notice or lapse of
time or both, would constitute a default thereunder, which default could
reasonably be expected to give rise to a right on the part of some party
thereto to terminate such instrument, accelerate the obligations thereunder or
claim damages in a material amount thereunder, except such default (i) as to
which requisite waivers or consents have been obtained or (ii) which is
curable and is cured within the applicable period for cure permitted under
such instruments. Schedule 3.07 also sets forth a list of each other
instrument or agreement that contains a restriction, limitation or
encumbrance, of any kind, on the ability of the Company to pay dividends on
its capital stock.
 
  (b) Schedule 3.07 also sets forth all contracts and other agreements and
arrangements pursuant to which the Company has agreed to indemnify or
exonerate any officer, director or employee of the Company with
 
                                     A-11
<PAGE>
 
respect to any matter. Except as described on Schedule 3.07, there are no
circumstances which might give rise to any obligation or liability on the part
of the Company so to indemnify any such officer, director or employee.
 
  (c) Except as disclosed in writing by the Company or as disclosed in the
Company SEC Reports, the Company does not have any liabilities as of the date
hereof, either accrued or contingent (whether or not required to be reflected
in financial statements in accordance with generally accepted accounting
principles), and whether due or to become due, other than (i) liabilities
reflected or reserved against in the Company Balance Sheet, (ii) liabilities
specifically described in this Agreement, or in the Schedules to this
Agreement, and (iii) normal or recurring liabilities incurred since June 30,
1997 in the ordinary course of business consistent with past practices and
which are not, individually or in the aggregate, material to the business,
results, operations, financial condition or prospects of the Company, and none
of which is a liability for breach of contract or warranty or has arisen out
of tort, infringement of any intellectual property rights, or violation of law
or is claimed in any pending or threatened legal proceeding.
 
  Section 3.08 Absence of Certain Changes or Events. Since the date of the
Company Balance Sheet, except as disclosed on Schedule 3.08, the Company has
conducted its business only in the ordinary course and in a manner consistent
with past practice and, since such date, there has not been (i) any Material
Adverse Effect with respect to the Company, and no fact or condition exists or
is contemplated or threatened which is reasonably likely to cause a Material
Adverse Effect with respect to the Company in the future, (ii) any material
change by the Company in its accounting methods, principles or practices
except as required by concurrent changes in generally accepted accounting
principles; or (iii) except as disclosed in the Schedules to this Agreement,
any other action or event that would have required the consent of USF pursuant
to Section 5.01 of this Agreement had such action or event occurred after the
date of this Agreement.
 
  Section 3.09 Tax Matters.
 
  (a) The Company has prepared and timely filed, and will file on a timely
basis, all material United States federal, state, local and international
returns, estimates, information statements and reports ("Returns") relating to
any and all Taxes concerning or attributable to the Company or its operations
and required to be filed on or prior to the Effective Time.
 
  (b) Each such Return was true, correct and complete on the respective date
on which it was filed and, to the knowledge of the Company, no event has since
occurred requiring any amendment thereto, which amendment has not been made in
a manner such that each such Return remains true, correct and complete.
 
  (c) The Company as of the Effective Time: (A) will have paid all Taxes it is
required to pay prior to the Effective Time and (B) will have withheld with
respect to its employees all United States federal and state income taxes,
FICA, FUTA and other Taxes required to be withheld.
 
  (d) The accounts shown on the Company Balance Sheet (excluding amounts
classified thereon as deferred) are sufficient for the discharge of all Taxes
attributable or with respect to all periods, or portions thereof, prior to the
date of the Company Balance Sheet remaining unpaid as of such date, except as
set forth in Schedule 3.09. There is no Tax deficiency outstanding or
assessed, or to the Company's knowledge proposed, against the Company that is
not reflected as a liability on the Company Balance Sheet nor has the Company
executed any waiver of any statute of limitations on or extending the period
for the assessment or collection of any Tax. No tax audit or examination is
now pending or currently in progress with respect to the Company.
 
  (e) The Company has not filed a consent under Section 341(f) of the Code
concerning collapsible corporations. The Company has not made any payment, nor
is it obligated to make any payment, nor is it a party to any agreement that
under certain circumstances could obligate it to make any payment, that will
not be deductible under Sections 280G or 162(m) of the Code. The Company has
not been (nor does it have any liability for unpaid Taxes because it once was)
a member of an affiliated group during any part of any consolidated return
year within any part of which consolidated return year any other corporation
was also a member of such group.
 
                                     A-12
<PAGE>
 
The Company is not and has not been during the applicable period specified in
Section 897(c)(1)(A)(ii) of the Code a United States real property holding
corporation as defined in Section 897(c)(1) of the Code. The Company does not
have any losses subject to the limitations of Section 382 of the Code.
 
  Section 3.10 Certain Transactions. Except as set forth in Schedule 3.10,
none of the officers or directors of the Company nor any Affiliate of the
Company, and, to the knowledge of the Company, none of the employees of the
Company is currently a party to any transaction with the Company (other than
for services as an employee, officer or director), including, without
limitation, any contract, agreement or other arrangement (a) providing for the
furnishing of services to or by, (b) providing for rental of real or personal
property to or from, or (c) otherwise requiring payments to or from, any such
officer, director, Affiliate or employee, any member of the family of any such
officer, director or employee or any corporation, partnership, trust or other
entity in which any such officer, director or employee has a substantial
interest or which is an Affiliate of such officer, director or employee.
 
  Section 3.11 Required Authorizations. Schedule 3.11 sets forth a true and
complete list of all Required Authorizations which the Company must give or
obtain for the execution and delivery of this Agreement by the Company or the
consummation by the Company of any of the transactions contemplated hereby or
in order to enable all the issued and outstanding capital stock of the Company
to be converted as contemplated by Article II.
 
  Section 3.12 Litigation. Except as set forth in Schedule 3.12 or as
indicated in any of the Company SEC Reports, there are no suits, litigations,
investigations, actions or proceedings of any kind pending or, to the
knowledge of the Company, threatened against the Company, nor, to the
knowledge of the Company, is any such matter pending or threatened against any
other person, which, if adversely determined, would have a Material Adverse
Effect with respect to the Company.
 
  Section 3.13 Compliance with Law; Regulatory Compliance.
 
  (a) Except as set forth in Schedule 3.13, the Company is not and has not
been in violation of any applicable United States federal, state, provincial,
local or international law, regulation, ordinance or other requirement of any
Governmental Authority relating to it or to its securities, property,
operations or business, and no event has occurred or condition or state of
facts exists that could give rise to any such violation, the existence of
which would have a Material Adverse Effect. Except as set forth in Schedule
3.13, as of the date of this Agreement, there is no outstanding order, writ,
judgment, stipulation, injunction, decree, determination, award or other order
of any court or governmental agency or instrumentality, domestic or
international, against or affecting the Company or any of the assets of the
Company.
 
  (b) The Company possesses or has made timely application for, all
Governmental Approvals with and under all United States federal, state,
provincial, local and international laws and Governmental Authorities,
required by the Company to carry on any substantial part of its respective
business as presently conducted and to use and operate any of its property and
assets. Schedule 3.13 sets forth a list of all such Governmental Approvals,
identifying each such Governmental Approval by number and indicating the
holder, the issuer and the nature thereof. All such Governmental Approvals are
in full force and effect and the Company is not in violation of any such
Governmental Approval or any other permit, license, approval, authorization or
registration applicable to it or to the operation of its business, and no
event or condition or state of facts exists (or would exist upon the giving of
notice or lapse of time or both) that could result in such a violation. Except
as disclosed in Schedule 3.13, the Company has no reason to believe that any
pending application for an Governmental Approval will not be timely granted
and no proceeding is pending or, to the knowledge of the Company, threatened
to revoke, suspend or materially modify any Governmental Approval possessed by
the Company or deny any renewal thereof.
 
                                     A-13
<PAGE>
 
  (c) Except as disclosed in Schedule 3.13, the Company has made all
Governmental Filings required to be made with any Governmental Authority with
respect to the operation of its business and the use and operation of its
property and assets.
 
  Section 3.14 Contracts. Set forth in Schedule 3.14 is a list of (a) all
contracts, agreements, commitments, undertakings or obligations to which the
Company is a party or by which it or its assets or properties are bound or
subject relating to the purchase of raw materials, the sale of finished
products or the furnishing of services which involve the payment by or to the
Company of more than $50,000 under any one of such contracts, and (b) all
other contracts, agreements, commitments, undertakings or obligations to which
the Company is a party or by which it or its assets or properties are bound or
subject (other than Real Property Leases, Personal Property Leases, Employment
Agreements and Benefit Plans) (i) which involve the payment by or to the
Company of more than $50,000 under any one of such contracts (measured by the
remaining portion to be paid thereunder) and which have a remaining term of
more than 120 days (taking into account the effect of any renewal options) and
are not cancelable without penalties by the Company on 30 days' or less
notice, (ii) which if terminated or lost would have a Material Adverse Effect
with respect to the Company, or (iii) was not entered into in the ordinary
course (collectively, the "Contracts"). There have been made available to USF
true and complete copies of all such Contracts that are in writing (including
all amendments thereto, if any). Except as set forth in Schedule 3.14, all of
the Contracts are in full force and effect and the Company is not in default
thereunder, nor, to the knowledge of the Company, is any other party to any
Contract in default thereunder, nor, to the best of the Company's knowledge,
does any condition exist that, with the giving of notice or lapse of time or
both, would constitute a default thereunder, which default would give rise to
a right on the part of some party thereto to terminate such Contract or claim
damages thereunder, except such default (i) as to which requisite waivers or
consents have been obtained or (ii) which is curable and is cured within the
applicable period for cure permitted under such Contract. Except as set forth
in Schedule 3.11, no approval or consent of any person is needed in order for
the Contracts to continue in full force and effect under the same terms and
conditions currently in effect following the consummation of the transactions
contemplated by this Agreement.
 
  Section 3.15 Real Property. Schedule 3.15 sets forth a list (by lessee) and
summary description of all Real Property Leases. The Company has a valid
leasehold interest in each Real Property Lease held by it as of the date of
this Agreement, in each case free and clear of all Liens, except for those
Liens arising under the Credit Facility. The use and operation of the real
property subject to the Real Property Leases conform to all restrictive
covenants and restrictions and conditions. The Company has made available to
USF a true and complete copy of each Real Property Lease which is in writing.
The Company is not a party to nor does it hold property subject to any Real
Property Lease which is not in writing. The Real Property Leases are in full
force and effect and the Company has not received any notice of default
thereunder which has not been remedied or waived nor is it aware of any event
or circumstance which with the giving of notice or passage of time or both
would constitute a default thereunder. Each Real Property Lease was negotiated
on an arm's length basis. The Company has not received any notice nor does it
have any knowledge of any pending, threatened or contemplated condemnation
proceeding or assessment for public improvements affecting any real property
leased pursuant to a Real Property Lease or any part thereof or of any sale or
other disposition thereof in lieu of condemnation.
 
  Section 3.16 Personal Property. The Company owns all Personal Property owned
by it as of the date of this Agreement, whether or not reflected in the
Company Balance Sheet, in each case free and clear of all Liens, except for
those Liens arising under the Credit Facility or under any purchase money
security arrangement with respect to which the monthly rental payments are
less than $1,500 or the aggregate rental payments are less than $10,000.
Schedule 3.16 also sets forth a list (by lessee or licensee) and a summary
description of all Personal Property Leases. The Company has a valid leasehold
interest in each Personal Property Lease held by it as of the date of this
Agreement, in each case free and clear of all Liens except for those Liens
arising under the Credit Facility. All of the Personal Property owned or
leased by, and currently used or necessary for or in the operations of the
Company, is in good operating condition and repair, is suitable for the
purposes in which it is used and includes all personal property necessary for
operation of the businesses conducted by the Company.
 
                                     A-14
<PAGE>
 
  Section 3.17 Intellectual Property Rights. Schedule 3.17 discloses all of
the trademark and service mark rights, applications and registrations, trade
names, fictitious names, service marks, logos and brand names, copyrights,
copyright applications, letters patent, patent applications and licenses of
any of the foregoing owned or used by or registered in the name of the
Company. The Company has the entire right, title and interest in and to, or
has the exclusive perpetual royalty-free right to use, the intellectual
property rights disclosed on Schedule 3.17 and all other customer lists,
processes, know-how, show-how, formulae, trade secrets, inventions,
discoveries, improvements, blueprints, specifications, drawings, designs, and
other proprietary rights necessary or applicable to or advisable for use in
the businesses conducted by the Company ("Intellectual Property"), free and
clear of all Liens. Schedule 3.17 separately discloses all Intellectual
Property under license or in which the Company otherwise has rights. The
Intellectual Property is valid and not the subject of any interference,
opposition, reexamination or cancellation. To the knowledge of the Company, no
person is infringing upon nor has any person misappropriated any Intellectual
Property, nor is the Company infringing upon the intellectual property rights
of any other person.
 
  Section 3.18 Environmental Matters. (a) The Company has applied for and has
in effect all United States federal, state and local and international
governmental approvals, authorizations, certificates, filings, franchises,
licenses, notices, permits and rights ("Environmental Permits") under
applicable statutes, laws, ordinances, rules, orders and regulations which are
administered, interpreted or enforced by a Governmental Authority with
jurisdiction over pollution or protection of the environment (collectively,
"Environmental Laws") necessary for it to carry on its business as now
conducted, and there has occurred no default under any such Environmental
Permit, except for the lack of Environmental Permits and for defaults under
Environmental Permits that, individually or in the aggregate, do not
constitute a Material Adverse Effect with respect to the Company.
 
  (b) The Company is, and has been, in compliance with applicable
Environmental Laws except for instances of possible noncompliance which,
individually or in the aggregate, do not constitute a Material Adverse Effect
with respect to the Company.
 
  (c) There is no suit, action, proceeding or inquiry pending or, to the
Company's knowledge, threatened before any Governmental Authority in which the
Company has been or, with respect to threatened suits, actions and
proceedings, may be named as a defendant (i) for alleged noncompliance
(including by any Predecessor) with any Environmental Law or (ii) relating to
the release into the environment of any hazardous material (as hereinafter
defined), asbestos, polychlorinated biphenyls or oil, whether or not occurring
at, on, under or involving a site owned, leased or operated by the Company, or
(iii) any site or location for which it has been designated as a potentially
responsible party under any United States federal, state, local or
international superfund law, or (iv) any claim, potential claim or express
reservation or responsibility for damages to natural resources, except in the
cases of clauses (i) through (iv) above for any such suits, actions,,
proceedings and inquiries that, individually or in the aggregate, do not
constitute a Material Adverse Effect with respect to the Company.
 
  (d) To the best of the Company's knowledge, during the period of ownership
or operation by the Company of any of its respective current or formerly owned
properties, there have been no underground storage tanks (whether currently
active or not) and no polychlorinated biphenyls in transformers or other
electrical equipment and there have been no releases of Hazardous Material or
of asbestos, polychlorinated biphenyls or oil in, on, under or affecting such
properties or, to the Company's knowledge, any surrounding site, except for
those that, individually or in the aggregate do not constitute a Material
Adverse Effect with respect to the Company. Prior to the period of ownership
or operation by the Company of any of its respective current or formerly owned
properties, to the Company's knowledge, there were no releases of Hazardous
Material or asbestos, polychlorinated biphenyls or oil or other petroleum
products in, on, under or affecting any such property or any surrounding site,
except for those that, individually or in the aggregate, do not constitute a
Material Adverse Effect with respect to the Company. "Hazardous Material"
means any pollutant, contaminant, or hazardous
 
                                     A-15
<PAGE>
 
substance within the meaning of the Comprehensive Environmental Response,
Compensation and Liability Act or other Environmental Laws.
 
  (e) The Company has provided USF with copies of all written information in
its possession or control pertaining to the matters set forth in paragraphs
(a) through (d) of this Section 3.18, including all documents pertaining to
environmental audits or assessments prepared by or for the Company or any
Governmental Authority.
 
  Section 3.19 Products Liability. Schedule 3.19 discloses all claims made
against the Company or its Predecessors during the past five years for
personal injury due to contamination of water.
 
  Section 3.20 Insurance. The Company has in effect valid and effective
policies of insurance, issued by companies believed by the Company to be sound
and reputable, insuring the Company for losses customarily insured against by
others engaged in similar lines of business. Such policies are reasonable, in
both scope and amount, in light of the risks attendant to the businesses
conducted by the Company. The Company will not have any liability after the
Effective Time for retrospective or retroactive premium adjustments. Schedule
3.20 sets forth a list (by holder) of all insurance policies held by the
Company, indicating the type of coverage, the amount of coverage and the
insuring entity with respect to each such policy. Schedule 3.20 also discloses
the manner in which the Company provides coverage for workers' compensation
claims.
 
  Section 3.21 Employment and Change in Control Agreements.
 
  (a) Schedule 3.21 sets forth a true and complete list of all agreements with
any officer, director or employee of the Company to which the Company is a
party, providing for the terms of his or her employment with the Company and
the terms of his or her severance or other payments upon termination of such
employment (the "Employment Agreements"). The Company has previously furnished
to USF true and complete copies of all Employment Agreements, together with
all amendments thereto (if any). Since the date of the Company Balance Sheet,
the Company has not (i) effected any increase in salary, wage or other
compensation of any kind, whether current or deferred, to any officer,
director, employee, agent, broker or consultant or (ii) made any contribution
to any trust or plan for the benefit of employees except as required by the
terms thereof as now in effect.
 
  (b) Except as set forth in Schedule 3.21 or as disclosed in Company SEC
Reports filed prior to the date of this Agreement, and except as provided for
in this Agreement, the Company is not a party to any oral or written (i)
agreement with any officer or other key employee of the Company (A) the
benefits of which are contingent, or the terms of which are materially
altered, upon the occurrence of a transaction involving the Company of the
nature contemplated by this Agreement or (B) providing for compensation
payments that would not be deductible by the Company for United States federal
income tax purposes, (ii) agreement with any officer or other key employee of
the Company providing any compensation guarantee, or (iii) agreement or
Benefit Plan, any of the benefits of which will be increased, or the vesting
of the benefits of which will be accelerated, by the occurrence of any of the
transactions contemplated by this Agreement or the value of any of the
benefits of which will be calculated on the basis of any of the transactions
contemplated by this Agreement.
 
  Section 3.22 Labor Relations. The relations of the Company with its
employees are good. Except as disclosed on Schedule 3.22, no employee of the
Company is represented by any union or other labor organization. No
representation election, arbitration proceeding, grievance, labor strike,
dispute, slowdown, stoppage or other labor trouble is pending or, to the
knowledge of the Company, threatened, against, involving, affecting or
potentially affecting the Company. No complaint against the Company is pending
or, to the knowledge of the Company, threatened before the National Labor
Relations Board, the Equal Employment Opportunity Commission or any similar
state or local agency, by or on behalf of any employee of the Company.
 
  Section 3.23 Employee Benefit Plans.
 
  (a) The Company has set forth on Schedule 3.23 all employee benefit plans
(as defined in Section 3(3) of ERISA) and all bonus, stock option, stock
purchase, fringe benefits, incentive, deferred compensation,
 
                                     A-16
<PAGE>
 
supplemental retirement, post-retirement health or welfare plan severance and
other employee benefit plans and arrangements, written or otherwise,
maintained by the Company or any trade or business (whether or not
incorporated) which is a member or which is under common control with the
Company (an "ERISA Affiliate") within the meaning of Section 414 of the Code,
for the benefit of, or relating to, any current or former employee of the
Company or an ERISA Affiliate (together, the "Company Group") or with respect
to which the Company or an ERISA Affiliate may have liability (together, the
"Benefit Plans").
 
  (b) With respect to each Benefit Plan, the Company has made available to USF
a true and correct copy of (i) the most recent annual report (Form 5500) filed
with the Internal Revenue Service ("IRS"), (ii) such Benefit Plan (or in the
case of an unwritten Benefit Plan, a written summary thereof), (iii) each
trust agreement and group annuity contract, if any, relating to such Benefit
Plan and (iv) the most recent actuarial report or valuation relating to a
Benefit Plan subject to Title IV of ERISA.
 
  (c) Each of the Benefit Plans and all related trusts, insurance contracts
and funds have been created, maintained, funded and administered in all
respects in compliance with all applicable laws and in compliance with the
plan document, trust agreement, insurance policy or other writing creating the
same or applicable thereto. No Benefit Plan is or is proposed to be under
audit or investigation, and no completed audit of any Benefit Plan has
resulted in the imposition of any tax, fine or penalty.
 
  (d) No prohibited transaction (within the meaning of Section 406 of ERISA
and Section 4975 of the Code) with respect to any Benefit Plan exists or has
occurred that could subject any member of the Company Group to any liability
or tax under Part 5 of Title I of ERISA or Section 4975 of the Code. No member
of the Company Group, nor any administrator or fiduciary of any Benefit Plan,
nor any agent of any of the foregoing, has engaged in any transaction or acted
or failed to act in a manner that will subject any member of the Company Group
to any liability for a breach of fiduciary or other duty under ERISA or any
other applicable law. With the exception of the requirements of Section 4980B
of the Code, no post-retirement benefits are provided under any Benefit Plan
that is a welfare benefit plan as described in ERISA Section 3(1).
 
  (e) Schedule 3.23 discloses each Benefit Plan that purports to be a
qualified plan under Section 401(a) of the Code and exempt from United States
federal income tax under Section 501(a) of the Code (a "Qualified Plan"). With
respect to each Qualified Plan, a determination letter (or opinion or
notification letter, if applicable) has been received from the IRS that such
plan is qualified under Section 401(a) of the Code and exempt from United
States federal income tax under Section 501(a) of the Code. No Qualified Plan
has been amended since the date of the most recent such letter applicable to
such Qualified Plan. No member of the Company Group, nor any fiduciary of any
Qualified Plan, nor any agent of any of the foregoing, has taken any action
that would adversely affect the qualified status of a Qualified Plan or the
qualified status of any related trust.
 
  (f) No Benefit Plan is a defined benefit plan within the meaning of Section
3(35) of ERISA (a "Defined Benefit Plan"). No Defined Benefit Plan sponsored
or maintained by any member of the Company Group has been terminated or
partially terminated except as set forth on Schedule 3.23. Each Defined
Benefit Plan identified as terminated on Schedule 3.23 has met the requirement
for standard termination of single-employer plans contained in Section 4041(b)
of ERISA. During the five-year period ending at the Effective Time, no member
of the Company Group has transferred a Defined Benefit Plan to a corporation
that was not, at the time of transfer, related to the transferor as described
in Section 414 of the Code.
 
  (g) No Benefit Plan is a multiemployer plan within the meaning of Section
3(37) or Section 4001(a)(3) of ERISA (a "Multiemployer Plan"). No member of
the Company Group has withdrawn from any Multiemployer Plan or incurred any
withdrawal liability to or under any Multiemployer Plan. No Benefit Plan
covers any employees of any member of the Company Group in any other country
or territory.
 
  (h) With respect to the Benefit Plans, individually and in the aggregate, no
event has occurred, and to the knowledge of the Company, there exists no
condition or set of circumstances in connection with which the
 
                                     A-17
<PAGE>
 
Company could be subject to any liability, that is reasonably likely to have a
Material Adverse Effect on the Company, under ERISA, the Code or any other
applicable law.
 
  (i) With respect to the Benefit Plans, individually and in the aggregate,
there are no funded benefit obligations for which contributions have not been
made or properly accrued and there are no unfunded benefit obligations which
have not been accounted for by reserves, or otherwise properly footnoted in
accordance with generally accepted accounting principles, on the financial
statements of the Company.
 
  Section 3.24 Pooling of Interests. To its knowledge, neither the Company nor
any of its Rule 145 Affiliates has taken or agreed to take any action which
would prevent the Merger from being accounted for as a pooling of interests.
 
  Section 3.25 Registration Statement; Proxy Statement/Prospectus. The
information supplied by the Company for inclusion in the registration
statement on Form S-4 pursuant to which shares of USF Common Stock issued in
the Merger will be registered with the SEC (the "Registration Statement"),
shall not at the time the Registration Statement is declared effective by the
SEC contain any untrue statement of a material fact or omit to state any
material fact required to be stated in the Registration Statement or necessary
in order to make the statements in the Registration Statement, in light of the
circumstances under which they were made, not misleading. The information
supplied by the Company for inclusion in the proxy statement/prospectus to be
sent to the stockholders of the Company in connection with the meeting of the
Company's stockholders (the "Stockholders' Meeting") to consider this
Agreement and the Merger (the "Proxy Statement") shall not, on the date the
Proxy Statement is first mailed to stockholders of the Company, at the time of
the Stockholders' Meeting and at the Effective Time, contain any statement
which, at such time and in light of the circumstances under which it shall be
made, is false or misleading with respect to any material fact, or omit to
state any material fact necessary in order to make the statements made in the
Proxy Statement not false or misleading; or omit to state any material fact
necessary to correct any statement with respect to the Company in any earlier
communication with respect to the solicitation of proxies for the
Stockholders' Meeting which has become false or misleading. If at any time
prior to the Effective Time any event relating to the Company or any of its
Affiliates, officers or directors should become known to the Company which
should be set forth in an amendment or supplement to the Registration
Statement or a supplement to the Proxy Statement, the Company shall promptly
inform USF.
 
  Section 3.26 Certain Fees. Neither the Company nor any of its officers,
directors or employees has employed any broker or finder or incurred any
liability for any brokerage fee, commission or finders' fee in connection with
any of the transactions contemplated hereby.
 
  Section 3.27 Section 203 of the DGCL Not Applicable. Section 203 of the DGCL
applicable to an "interested stockholder" or a "business combination" (as
defined in Section 203) will not apply to the execution, delivery or
performance of this Agreement or the Stockholder Agreements or the
consummation of the Merger or the other transactions contemplated by this
Agreement or by the Stockholder Agreements.
 
  Section 3.28 Disclosure. No representation or warranty of the Company in
this Agreement or any certificate, schedule, statement, document or instrument
furnished or to be furnished to USF pursuant hereto or in connection herewith,
contains or will contain any untrue statement of a material fact or omits or
will omit to state a material fact required to be stated herein or therein or
necessary to make any statement herein or therein not misleading.
 
                                  ARTICLE IV
 
                 REPRESENTATIONS AND WARRANTIES OF USF AND SUB
 
  Each of USF and Sub represents and warrants to the Company as follows:
 
  Section 4.01 Organization of USF and Sub.
 
  (a) USF is a corporation duly organized, validly existing and in good
standing under the laws of the State of Delaware, has all requisite corporate
power to own, lease and operate its property and to carry on its business
 
                                     A-18
<PAGE>
 
as now being conducted, and is duly qualified to do business and is in good
standing as a foreign corporation in each jurisdiction in which the failure to
be so qualified would have a Material Adverse Effect on USF and its
Subsidiaries, taken as a whole.
 
  (b) Sub is a corporation duly organized, validly existing and in good
standing under the laws of the State of Delaware, has all requisite corporate
power to own, lease and operate its property and to carry on its business as
now being conducted, and is duly qualified to do business and is in good
standing as a foreign corporation in each jurisdiction in which the failure to
be so qualified would have a Material Adverse Effect on USF and its
Subsidiaries, taken as a whole.
 
  Section 4.02 Capitalization of USF and Sub.
 
  (a) The authorized capital stock of USF consists of 300,000,000 shares of
Common Stock, $.01 par value, and 3,000,000 shares of Preferred Stock, $.10
par value. As of August 31, 1997, (i) 82,824,608 shares of USF Common Stock
were issued and outstanding, all of which are validly issued, fully paid and
nonassessable, and (ii) no shares of Preferred Stock were issued and
outstanding. Any share of USF Common Stock, when issued in accordance with
Article II hereof, will be duly authorized and validly issued, and will be
fully paid and nonassessable.
 
  (b) The authorized capital stock of Sub consists of 1,000 shares of common
stock, par value $.01 per share, of which 1,000 shares are issued and
outstanding, all of which are duly authorized and validly issued and are fully
paid and nonassessable, and owned, beneficially and of record, by USF.
 
  Section 4.03 Authority; No Conflict; Required Filings and Consents.
 
  (a) USF and Sub have all requisite corporate power and authority to enter
into this Agreement and to consummate the transactions contemplated by this
Agreement. The execution and delivery of this Agreement and the consummation
of the transactions contemplated by this Agreement have been duly authorized
by all necessary corporate action on the part of USF and Sub. This Agreement
has been duly executed and delivered by USF and Sub and, assuming the due
authorization, execution and delivery by the Company, constitutes the valid
and binding obligation of USF and Sub, enforceable in accordance with its
terms, except as such enforceability may be limited by (i) bankruptcy,
insolvency, reorganization, moratorium or other similar laws affecting or
relating to creditors' rights generally and (ii) the availability of
injunctive relief and other equitable remedies.
 
  (b) The execution and delivery of this Agreement by USF and Sub does not,
and the consummation of the transactions contemplated by this Agreement will
not, (i) conflict with, or result in any violation or breach of any provision
of the Certificate of Incorporation, as amended, or the Amended and Restated
Bylaws of USF, or the Certificate of Incorporation or Bylaws of Sub, (ii)
result in any violation or breach of, or constitute (with or without notice or
lapse of time, or both) a default (or give rise to a right of termination,
cancellation or acceleration of any obligation or loss of any material
benefit) under any of the terms, conditions or provisions of any note, bond,
mortgage, indenture, lease, contract or other agreement, instrument or
obligation to which USF or Sub is a party or by which either of them or either
of their properties or assets may be bound, or (iii) conflict with or violate
any permit, concession, franchise, license, judgment, order, decree, statute,
law, ordinance, rule or regulation applicable to USF or Sub or any of its or
their properties or assets, except in the case of (ii) and (iii) for any such
conflicts, violations, defaults, terminations, cancellations or accelerations
which would not have a Material Adverse Effect on USF and its Subsidiaries,
taken as a whole.
 
  (c) No consent, approval, order or authorization of, or registration,
declaration or filing with, any Governmental Authority, is required by or with
respect to USF or any of its Subsidiaries in connection with the
 
                                     A-19
<PAGE>
 
execution and delivery of this Agreement or the consummation of the
transactions contemplated hereby, except for (i) the filing of the Certificate
of Merger with the Delaware Secretary of State, (ii) the filing of a Form S-4
Registration Statement with the SEC in accordance with the Securities Act,
(iii) the filing of the Proxy Statement with the SEC in accordance with the
Exchange Act, and (iv) such consents, approvals, orders, authorizations,
registrations, declarations and filings as may be required under applicable
state securities laws and the laws of any other country.
 
  Section 4.04 SEC Filings; Financial Statements.
 
  (a) USF has filed all forms, reports and documents required to be filed by
USF with the SEC and has previously furnished to the Company a true and
complete copy of (i) its Annual Report on Form 10-K for the year ended March
31, 1997, (ii) its Quarterly Report on Form 10-Q for the quarter ended June
30, 1997, (iii) its definitive proxy statement with respect to its 1997 annual
meeting of stockholders, and (iv) all other reports or other correspondence
filed by it with the SEC pursuant to the Exchange Act since April 1, 1997, in
each case as filed with the SEC (collectively, together with any forms,
reports and documents filed by USF with the SEC after the date hereof until
the Closing, the "USF SEC Reports"). Each such report, when filed, complied in
all material respects with the requirements of the Exchange Act and the
applicable rules and regulations thereunder and, as of their respective dates,
none of such reports contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary to
make the statements therein, in light of the circumstances under which they
were made, not misleading.
 
  (b) Each of the consolidated financial statements (including, in each case,
any related notes) contained in the USF SEC Reports complied as to form in all
material respects with the applicable published rules and regulations of the
SEC with respect thereto, was prepared in accordance with generally accepted
accounting principles applied on a consistent basis throughout the periods
involved (except as may be indicated in the notes to such financial
statements) and fairly presented the consolidated financial position of USF
and its Subsidiaries as at the respective dates and the consolidated results
of their operations and cash flows for the periods indicated, except that the
unaudited interim financial statements (i) were or are subject to normal year-
end adjustments which were not or are not expected to be material in amount,
and (ii) do not contain footnote disclosure. The unaudited balance sheet of
USF as of June 30, 1997 is referred to herein as the "USF Balance Sheet."
 
  Section 4.05 Absence of Certain Changes or Events. Since the date of the USF
Balance Sheet, there has not been any Material Adverse Effect with respect to
USF and its Subsidiaries, taken as a whole, and no fact or condition exists or
is contemplated which is reasonably likely to cause a Material Adverse Effect
with respect to USF and its Subsidiaries, taken as a whole, in the future.
 
  Section 4.06 Litigation. Except as set forth in Schedule 4.06 or as
indicated in any of the USF SEC Reports, there are no suits, litigations,
investigations, actions or proceedings of any kind pending or (to the
knowledge of USF) threatened against USF or any Subsidiary, nor (to the
knowledge of USF) is any such matter pending or threatened against any other
person, which, if adversely determined, would have a Material Adverse Effect
with respect to USF.
 
  Section 4.07 Registration Statement; Proxy Statement/Prospectus. The
information supplied by USF for inclusion in the Registration Statement shall
not at the time the Registration Statement is declared effective by the SEC
contain any untrue statement of a material fact or omit to state any material
fact required to be stated in the Registration Statement or necessary in order
to make the statements in the Registration Statement, in light of the
circumstances under which they were made, not misleading. The information
supplied by USF for inclusion in the Proxy Statement shall not, on the date
the Proxy Statement is first mailed to stockholders of the Company, at the
time of the Stockholders' Meeting and at the Effective Time, contain any
statement which, at such time and in light of the circumstances under which it
shall be made, is false or misleading with respect to any material fact, or
omit to state any material fact necessary in order to make the statements made
in the Proxy Statement not false or misleading; or omit to state any material
fact necessary to correct any statement with respect to USF and its
Subsidiaries in any earlier communication with respect to the solicitation of
proxies for the Stockholders'
 
                                     A-20
<PAGE>
 
Meeting which has become false or misleading. If at any time prior to the
Effective Time any event relating to USF or any of its Affiliates, officers or
directors should become known to USF which should be set forth in an amendment
or supplement to the Registration Statement or a supplement to the Proxy
Statement, USF shall promptly inform the Company.
 
  Section 4.08 Interim Operations of Sub. Sub was formed solely for the
purpose of engaging in the transactions contemplated by this Agreement, has
engaged in no other business activities and has conducted its operations only
as contemplated by this Agreement.
 
                                   ARTICLE V
 
                                   COVENANTS
 
  Section 5.01 No Solicitation From and after the date hereof until the
earlier of the termination of this Agreement in accordance with Article VII
and the Effective Time:
 
  (a) The Company shall not, directly or indirectly, through any officer,
director, employee, representative or agent of the Company, (i) solicit,
initiate, or encourage any inquiries or proposals that constitute, or could
reasonably be expected to lead to, a proposal or offer for a merger,
consolidation, business combination, sale of substantial assets, sale of
shares of capital stock (including without limitation by way of a tender
offer) or similar transactions involving the Company, other than the
transactions contemplated by this Agreement (any of the foregoing inquiries or
proposals being referred to in this Agreement as an "Acquisition Proposal"),
(ii) engage in negotiations or discussions concerning, or provide any non-
public information to any person or entity relating to, any Acquisition
Proposal, or (iii) agree to, approve or recommend any Acquisition Proposal;
provided, however, that nothing contained in this Agreement shall prevent the
Company or the Company Board from (A) furnishing non-public information to, or
entering into discussions or negotiations with, any person or entity in
connection with an unsolicited bona fide written Acquisition Proposal by such
person or entity or recommending an unsolicited bona fide written Acquisition
Proposal to the stockholders of the Company, if and only to the extent that
(1) the Company Board believes in good faith (after consultation with its
financial advisor, and based upon the written opinion of such financial
advisor) that such Acquisition Proposal would, if consummated, result in a
transaction (an "Acquisition Transaction") more favorable to the Company's
stockholders from a financial point of view than the transaction contemplated
by this Agreement (any such more favorable Acquisition Transaction being
referred to in this Agreement as a "Superior Proposal") and the Company Board
determines in good faith, based on written advice of outside legal counsel,
that such action is necessary for the Company to comply with its fiduciary
duties to stockholders under applicable law and (2) prior to furnishing such
non-public information to, or entering into discussions or negotiations with,
such person or entity, the Company Board receives from such person or entity
an executed confidentiality agreement with terms no more favorable to such
party than those contained in the Confidentiality Agreement dated July 30,
1997 between USF and the Company (the "Confidentiality Agreement"); or (B)
taking any position with regard to an Acquisition Proposal pursuant to Rules
14d-9 and 14e-2 under the Exchange Act which is consistent with the advice of
counsel concerning the Company Board's fiduciary duties under applicable law
with respect to a tender offer commenced by a third party (other than by
public announcement alone).
 
  (b) The Company shall notify USF as soon as practicable upon receipt by the
Company (or its advisors) of any Acquisition Proposal or any request for non-
public information in connection with an Acquisition Proposal or for access to
the properties, books or records of the Company by any person or entity. Such
notice shall be made orally and in writing and shall indicate in reasonable
detail the identity of the offeror and the terms and conditions of such
proposal, inquiry or contact.
 
  Section 5.02 Stockholder Approval.
 
  (a) As promptly as practicable following the execution and delivery of this
Agreement, unless this Agreement shall have been previously terminated in
accordance with Article VII, the Company shall submit this
 
                                     A-21
<PAGE>
 
Agreement and the Merger to its stockholders for approval and adoption at a
meeting of its stockholders called by the Company for such purpose. Unless
this Agreement shall have been previously terminated in accordance with
Article VII and subject to Section 5.01, the Company Board shall recommend
that the stockholders of the Company vote to approve and adopt this Agreement
and the Merger and the other matters to be submitted to the Company's
stockholders in connection therewith and shall use its best efforts to solicit
and secure from its stockholders their approval and adoption of this Agreement
and the Merger.
 
  (b) Unless this Agreement shall have been previously terminated in
accordance with Article VII, USF, as the sole stockholder of Sub, shall, prior
to the Effective Time, consent in writing to the approval and adoption of this
Agreement and the Merger.
 
  Section 5.03 Conduct of the Business of the Company. During the period from
the date of this Agreement and continuing until the earlier of the termination
of this Agreement in accordance with Article VII and the Effective Time, the
Company agrees (except to the extent that USF shall otherwise consent in
writing), to carry on its business in the usual, regular and ordinary course
in substantially the same manner as heretofore conducted, to pay its debts and
taxes when due subject to good faith disputes over such debts or taxes, to pay
or perform its other obligations when due, in each case consistent with past
practices and policies and, to use all reasonable efforts consistent with past
practices and policies to preserve intact its present business organization,
keep available the services of its present officers and key employees and
preserve its relationships with customers, suppliers, distributors, licensors,
licensees, and others having business dealings with it, to the end that its
goodwill and ongoing business be substantially unimpaired at the Effective
Time. The Company shall promptly notify USF of any event or occurrence not in
the ordinary course of business of the Company. Except as expressly
contemplated by this Agreement, and not in limitation of the foregoing, during
the aforesaid period the Company shall:
 
  (a) preserve and maintain its corporate existence and all of its rights,
privileges and franchises reasonably necessary or desirable in the normal
conduct of its business, except to the extent contemplated by any transactions
specifically permitted by this Agreement;
 
  (b) except as disclosed on Schedule 3.08, not acquire any stock or other
interest in, nor (except in the ordinary course of business) purchase any
assets of, any corporation, partnership, association or other business
organization or entity or any division thereof (except any stock or assets
distributed to the Company as part of any bankruptcy or other creditor
settlement or pursuant to a plan of reorganization), nor agree to do any of
the foregoing;
 
  (c) not sell, lease, assign, transfer or otherwise dispose of any of its
assets (including, without limitation, patents, trade secrets or licenses),
nor suffer to exist or create any Lien on any of its assets, except as
permitted by this Agreement or in the ordinary course of business and except
that the Company may sell or otherwise dispose of any assets which are
obsolete;
 
  (d) not incur any Indebtedness, other than as a result of borrowings or
drawdowns, the issuance of letters of credit for the account of the Company
and the incurrence of interest, letter of credit reimbursement obligations and
other obligations under the terms of the Credit Facility as currently in
effect, which Indebtedness shall be incurred only for working capital purposes
or acquisitions permitted under subsection (b) above;
 
  (e) not (i) alter, amend or repeal any provision of its Certificate of
Incorporation, as amended, or Amended and Restated Bylaws or its certificate
of incorporation or by-laws (as the case may be), (ii) change the number of
its directors (other than as a result of the death, retirement or resignation
of a director), (iii) form or acquire any subsidiaries not existing as of the
date of this Agreement, (iv) except in the ordinary course conduct of its
business, enter into, modify or terminate any Contracts or agree to do so, (v)
modify or terminate any Employment Agreement, or (vi) declare, pay, commit to
or incur any obligation of any kind for the payment of
 
                                     A-22
<PAGE>
 
any bonus, additional salary or compensation or retirement, termination,
welfare or severance benefits payable or to become payable to any of its
employees or such other persons, except for such matters as are required
pursuant to the terms of any existing Employment Agreement or Benefit Plan;
 
  (f) maintain its books, accounts and records in the usual, ordinary and
regular manner and in material compliance with all applicable laws;
 
  (g) pay and discharge all Taxes imposed upon it or upon its income or
profits, or upon any property belonging to it, prior to the date on which
penalties attach thereto, except to the extent that the Company is currently
contesting, in good faith and by proper proceedings, the payment of such Taxes
and the Company maintains appropriate reserves with respect thereto;
 
  (h) not settle any tax claim against the Company or any litigation (net of
applicable insurance proceeds) in excess of $10,000 in the aggregate;
 
  (i) use its best efforts to meet its obligations under all Contracts, and
not become in default thereunder;
 
  (j) maintain its business and assets in working repair, order and condition,
reasonable wear and tear excepted, and maintain insurance upon such business
and assets at least comparable in amount and kind to that in effect on the
date hereof;
 
  (k) use its best efforts to maintain its present relationships and goodwill
with suppliers, brokers, manufacturers, representatives, distributors,
customers and others having business relations with it (provided that it may
pursue overdue accounts and otherwise exercise lawful remedies in its
customary fashion);
 
  (l) carry on and operate its business in, and only in, the usual, regular
and ordinary course in substantially the same manner as heretofore conducted
and use its best efforts to cause the representations and warranties of the
Company set forth in this Agreement to be true and correct, in all material
respects, on and as of the Effective Time, subject only to changes in the
ordinary course of business;
 
  (m) not declare, set aside, make or pay any dividends or other distributions
with respect to its capital stock, including, without limitation, the Company
Common Stock, or purchase or redeem any shares of its capital stock,
including, without limitation, the Company Common Stock, or agree to take any
such action;
 
  (n) except as permitted in subsection (b) above, not authorize or make any
capital expenditure if the aggregate of the amount of such capital expenditure
together with the amounts of all other capital expenditures since the date of
this Agreement shall exceed $50,000;
 
  (o) use its best efforts not to violate any law or regulation applicable to
it nor violate any order, injunction or decree applicable to the conduct of
its business; and
 
  (p) not increase the number of shares authorized or issued and outstanding
of its capital stock, including, without limitation, the Company Common Stock,
nor grant or make any pledge, option, warrant, call, commitment, right or
agreement of any character relating to its capital stock, including, without
limitation, the Company Common Stock, nor issue or sell any shares of its
capital stock, including, without limitation, the Company Common Stock, or
securities convertible into such capital stock, or any bonds, promissory
notes, debentures or other corporate securities or become obligated so to sell
or issue any such securities or obligations, except, in any case, issuance of
shares of the Company Common Stock (i) pursuant to the exercise of options,
warrants or other rights outstanding as of the date hereof and referred to in
Section 3.02 and (ii) pursuant to the terms of the Convertible Notes.
 
  Section 5.04 Access to Information. Upon reasonable notice, the Company
shall (i) afford to the officers, employees, accountants, counsel and other
representatives of USF, access, during normal business hours during the period
prior to the earlier of the termination of this Agreement and the Effective
Time, to all its properties,
 
                                     A-23
<PAGE>
 
books, contracts, commitments, records, officers, employees, accountants,
accountants' work papers, correspondence and affairs, and (ii) cause its
officers and employees to furnish, to USF, Sub and their authorized
representatives, any and all financial, technical and operating data and other
information pertaining to the businesses of the Company as USF or Sub shall
from time to time reasonably request. In addition, without limiting the
generality of the foregoing, the Company will make available to USF and Sub
for examination true and complete copies of all Returns filed by the Company,
together with all available revenue agents' reports, all other reports,
notices and correspondence concerning tax audits or examinations and analyses
of all provisions for reserves or accruals of taxes, including deferred taxes.
 
  Section 5.05 Required Authorizations.
 
  (a) USF, Sub and the Company shall each, as promptly as practicable, take
all reasonable actions necessary to obtain all Required Authorizations (if
any) required to be given or obtained by it, respectively, to permit USF and
Sub, on the one hand, and the Company, on the other, to consummate the
transactions contemplated by this Agreement and to realize the respective
benefits to each party contemplated hereby; provided that USF shall not be
required to take any action to comply with any legal requirement or agree to
the imposition of any order of any Governmental Authority that would (i)
prohibit or restrict the ownership or operation by USF of any portion of the
business or assets of USF (or any of its Subsidiaries) or the Company, (ii)
compel USF (or any of its Subsidiaries) or the Company to dispose of or hold
separate any portion of its or the Company's business or assets, or (iii)
impose any limitation on the ability of USF, the Company or the Surviving
Corporation or any of their respective affiliates or Subsidiaries to own or
operate the business and operations of the Company, and provided further that
the Company shall not incur fees and expenses in excess of $5,000 in the
aggregate in order to obtain any such Required Authorizations described in
clause (ii) of the definition thereof without the prior written consent of
USF.
 
  (b) Without limiting the generality of the foregoing, USF, Sub and the
Company shall each cooperate with the others in filing in a timely manner any
applications, requests, reports, registrations or other documents, including,
without limitation, all reports and documents required to be filed by or under
the Securities Act or the Exchange Act (including, without limitation, the
Registration Statement and the Proxy Statement), with any Governmental
Authority having jurisdiction with respect to the transactions contemplated
hereby and in consulting with and seeking favorable action from any
Governmental Authority.
 
  (c) Without limiting the generality of the foregoing, the Company shall use
its best efforts to obtain all approvals or consents of any person needed in
order that the Contracts continue in full force and effect under the same
terms and conditions currently in effect following the consummation of the
transactions contemplated by the Agreement.
 
  (d) Without limiting the generality of the foregoing, USF shall use its best
efforts to obtain, prior to the Effective Time, the approval for the listing,
subject to official notice of issuance, on the New York Stock Exchange of the
shares of USF Common Stock to be issued pursuant to Article II.
 
  Section 5.06 Financial Statements of The Company.
 
  (a) As soon as practicable but in any event within 45 days after the end of
each calendar month commencing with August 1997, through the Effective Time or
earlier termination of this Agreement in accordance with Article VII, the
Company will deliver to USF unaudited balance sheets of the Company as at the
end of such calendar month and as at the end of the comparative month of the
preceding year, together with unaudited summaries of earnings of the Company
for such calendar month and the comparative calendar month of the preceding
year. As soon as practicable but in any event within 45 days after the end of
each fiscal quarter of the Company, commencing with September 30, 1997, and
within 60 days after the end of the fiscal year ended December 31, 1997, as
the case may be, through the Effective Time or earlier termination of this
Agreement in accordance with Article VII, the Company will deliver to USF
unaudited balance sheets of the Company as at the end of such fiscal quarter
and as at the end of the comparative fiscal quarter of the preceding year,
together
 
                                     A-24
<PAGE>
 
with the related unaudited statements of income and cash flows for the fiscal
quarters then ended. All such financial statements of the Company shall
present fairly, in all material respects, the financial position, results of
operations and cash flows of the Company, as at or for the periods indicated
(and, in the case of all such financial statements which are interim financial
statements, shall contain all adjustments necessary so to present fairly) and
shall be prepared in accordance with generally accepted accounting principles
(other than to omit certain footnotes which might be required thereby and
subject, in the case of interim financial statements, to normal year-end
adjustments) consistent with past practice, except as otherwise indicated in
such statements. All such financial statements of the Company shall be
certified, on behalf of the Company, by the President and Chief Financial
Officer of the Company.
 
  (b) The Company will deliver to USF financial statements (including related
notes thereto) at December 31, 1997 and for the year then ended, prepared in
accordance with generally accepted accounting principles applied on a
consistent basis with prior periods, together with the report thereon of
Arthur Andersen LLP (the "1997 Financial Statements"), within 10 days of their
availability. USF shall have 10 days to notify the Company in writing of any
disagreement with the 1997 Financial Statements, which notice shall state with
reasonable specificity the reasons for any disagreement and identify the items
and amounts in dispute. If any disagreement concerning the 1997 Financial
Statements is not resolved by USF and the Company within 10 days following the
receipt by USF of the 1997 Financial Statements, USF and the Company shall
promptly engage the New York office of Coopers & Lybrand LLP on standard terms
and conditions for a matter of such nature. The engagement agreement with the
independent accountants shall require the independent accountants to make
their determination with respect to the items in dispute within 10 days
following the receipt by USF of the 1997 Financial Statements. The resolution
by the independent accountants of any dispute concerning the 1997 Financial
Statements shall be final, binding and conclusive upon the parties.
 
  Section 5.07 Public Announcements. Neither USF, Sub nor the Company shall
make any press release or other written public statement concerning the
matters covered by this Agreement without the approval of the other parties
hereto, except as required by law or applicable regulation, and each shall in
all events use its best efforts to permit such other parties an opportunity to
review and comment upon any such release or statement prior to dissemination.
 
  Section 5.08 Benefit Plans. Except as required by law or the terms of any
Benefit Plan, from the date hereof until the Effective Time or the earlier
termination of this Agreement in accordance with Article VII, no award or
grant under the Benefit Plans shall be made without the consent of USF; it
being understood that no options, warrants or other rights to acquire
securities of the Company shall be granted by the Company. Except as required
by law, no amendment to (other than revisions required to comply with the Code
or ERISA), or termination of, any of the Benefit Plans shall be made without
the consent of USF.
 
  Section 5.09 Tax-Free Reorganization. USF and the Company shall each use its
best efforts to cause the Merger to be treated as a reorganization within the
meaning of Section 368(a) of the Code.
 
  Section 5.10 Pooling Accounting. USF and the Company shall each use its best
efforts to cause the business combination to be effected by the Merger to be
accounted for as a pooling of interests. The Company shall use its best
efforts to cause its Rule 145 Affiliates not to take any action that would
adversely affect the ability of USF to account for the business combination to
be effected by the Merger as a pooling of interests.
 
  Section 5.11 Affiliate Agreements. Within two weeks following the date of
this Agreement, the Company will provide USF with a list of those persons who
are, in the Company's reasonable judgment, "affiliates" of it within the
meaning of Rule 145 promulgated under the Securities Act ("Rule 145") (each
such person who is an "affiliate" within the meaning of Rule 145 is referred
to as a "Rule 145 Affiliate"). The Company shall provide USF with such
information and documents as USF shall reasonably request for purposes of
reviewing such list and the Company shall notify USF in writing regarding any
change in the identity of its Rule 145 Affiliates prior to the Closing Date.
The Company shall use its best efforts to deliver or cause to be delivered to
USF prior to the Effective Time from each of its Rule 145 Affiliates, an
executed Affiliate Agreement, in
 
                                     A-25
<PAGE>
 
substantially the form attached hereto as Exhibit B (each an "Affiliate
Agreement"). USF shall be entitled to place appropriate legends on the
certificates evidencing any USF Common Stock to be received by such Rule 145
Affiliates pursuant to the terms of this Agreement, and to issue appropriate
stop transfer instructions to the transfer agent for the USF Common Stock,
consistent with the terms of the Affiliate Agreements.
 
  Section 5.12 Representations, Covenants and Conditions; Further
Assurances. Subject to the terms and conditions of this Agreement, each of the
parties agrees to use all reasonable efforts to take, or cause to be taken,
all action and to do, or cause to be done, all things necessary, proper or
advisable under applicable laws and regulations to consummate and make
effective the transactions contemplated by this Agreement; provided that USF
shall not be required to take any action to comply with any legal requirement
or agree to the imposition of any order of any Governmental Authority that
would (i) prohibit or restrict the ownership or operation by USF of any
portion of the business or assets of USF (or any of its Subsidiaries) or the
Company, (ii) compel USF (or any of its Subsidiaries) or the Company to
dispose of or hold separate any portion of its or the Company's business or
assets, or (iii) impose any limitation on the ability of USF or the Surviving
Corporation or any of their respective affiliates or Subsidiaries to own or
operate the business and operations of the Company, and further provided that
the Company shall not incur fees and expenses in excess of $5,000 in the
aggregate in order to take any such action or do any such thing without the
prior written consent of USF. In case at any time after the Effective Time any
further action is necessary or desirable to carry out the purposes of this
Agreement or to vest the Surviving Corporation with full title to all
properties, assets, rights, approvals, immunities and franchises of the
Company, the proper officers and directors of each party to this Agreement
shall take all such necessary action to effectuate the same.
 
                                  ARTICLE VI
 
                             CONDITIONS TO MERGER
 
  Section 6.01 Conditions to Each Party's Obligation To Effect the Merger. The
respective obligations of each party to this Agreement to effect the Merger
shall be subject to the satisfaction prior to the Closing Date of the
following conditions:
 
  (a) Stockholder Approval. This Agreement and the Merger shall have been
approved and adopted by the affirmative vote of the holders of a majority of
the outstanding shares of Company Common Stock.
 
  (b) Required Authorizations. All Required Authorizations shall have been
obtained.
 
  (c) Registration Statement. The Registration Statement shall have become
effective under the Securities Act and shall not be the subject of any stop
order or proceedings seeking a stop order.
 
  (d) No Injunctions or Restraints; Illegality. No temporary restraining
order, preliminary or permanent injunction or other order issued by any court
of competent jurisdiction or other legal or regulatory restraint or
prohibition preventing the consummation of the Merger or limiting or
restricting the Company's or USF's conduct or operation of the business of the
Company after the Merger shall have been issued, nor shall there be any
statute, rule, regulation or order enacted, entered, enforced or deemed
applicable to the Merger which makes the consummation of the Merger illegal.
 
  (e) NYSE. The shares of USF Common Stock to be issued in the Merger shall
have been listed on the New York Stock Exchange.
 
  Section 6.02 Additional Conditions to Obligations of USF and Sub. The
obligations of USF and Sub to effect the Merger are subject to the
satisfaction of each of the following additional conditions, any of which may
be waived in writing exclusively by USF and Sub:
 
 
                                     A-26
<PAGE>
 
  (a) Representations and Warranties. The representations and warranties of
the Company set forth in this Agreement shall be true and correct in all
material respects as of the date of this Agreement and (except to the extent
such representations and warranties are made as of an earlier date, which
representations and warranties shall be true and correct in all material
respects at and as of such date) as of the Closing Date as though made on and
as of the Closing Date, in each case except for changes contemplated by this
Agreement, and USF shall have received a certificate signed on behalf of the
Company by the chief executive officer and the chief financial officer of the
Company to such effect.
 
  (b) Performance of Obligations of The Company. The Company shall have
performed in all material respects all obligations required to be performed by
it under this Agreement at or prior to the Closing Date, and USF shall have
received a certificate signed on behalf of the Company by the chief executive
officer and the chief financial officer of the Company to such effect.
 
  (c) Tax Opinion. USF shall have received a written opinion from Kirkpatrick
& Lockhart LLP, counsel to USF, to the effect that the Merger will be treated
for Federal income tax purposes as a tax-free reorganization within the
meaning of Section 368(a) of the Code. In rendering such opinion, counsel may
rely upon representations and certificates of USF, Sub and the Company.
 
  (d) Opinion of Counsel to The Company. USF shall have been furnished an
opinion of Lev, Berlin & Dale, P.C., counsel to the Company, dated the date of
the Effective Time, in form satisfactory to USF.
 
  (e) Pooling Letter. USF shall be satisfied that the business combination to
be effected by the Merger will qualify as a pooling of interests transaction
under generally accepted accounting principles.
 
  (f) Affiliate Agreements. USF shall have received from each of the Company's
Rule 145 Affiliates an executed copy of an Affiliate Agreement substantially
in the form of Exhibit B hereto.
 
  (g) Option Holder Agreements. USF shall have received from each holder of an
Employee or Director Stock Option an agreement consenting to the conversion of
such options into options to purchase USF Common Stock as prescribed in
Section 2.07.
 
  (h) Convertible Notes. USF shall have received from each holder of a
Convertible Note an agreement consenting to the amendment thereof to the
effect provided in Section 2.10.
 
  (i) Savoy Asset Purchase Agreement. The Savoy Asset Purchase Agreement shall
have been amended to provide that if the 32,000 shares of Company Common Stock
reserved for issuance pursuant thereto shall not have been issued prior to the
Closing Date, the right to receive such shares shall be converted into the
right to receive that number of shares of USF Common Stock that would have
been issued in the Merger in respect of such shares of Company Common Stock
had such shares been issued prior to the Closing Date.
 
  (j) No Rights to Options. USF shall be satisfied that no rights are
outstanding requiring the issuance to Mr. Lou Betti of options to purchase or
otherwise acquire Company Common Stock.
 
  (k) Employment Agreements. Messrs. Levy and West shall have entered into
employment agreements in a form satisfactory to USF.
 
  (l) Resignation of Directors. USF shall have received letters of
resignation, effective as of the Effective Time, executed and tendered by each
of the existing directors of the Company, or, to the extent such resignations
are not obtained, such other evidence, satisfactory to USF, that such
directors shall have been duly and lawfully removed (without cost or other
liability to the Company other than pursuant to any agreement or other
arrangements with such directors existing and in effect as of the date hereof)
effective as of the Effective Time.
 
  Section 6.03 Additional Conditions to Obligations of The Company. The
obligation of the Company to effect the Merger is subject to the satisfaction
of each of the following additional conditions, any of which may be waived, in
writing, exclusively by the Company:
 
                                     A-27
<PAGE>
 
  (a) Representations and Warranties. The representations and warranties of
USF and Sub set forth in this Agreement shall be true and correct in all
material respects as of the date of this Agreement and (except to the extent
such representations and warranties are made as of an earlier date, which
representations and warranties shall be true and correct in all material
respects at and as of such date) as of the Closing Date as though made on and
as of the Closing Date, in each case except for changes contemplated by this
Agreement, and the Company shall have received a certificate signed on behalf
of USF by the chief executive officer and the chief financial officer of the
Company to such effect.
 
  (b)  Performance Of Obligations of USF and Sub. USF and Sub shall have
performed in all material respects all obligations required to be performed by
them under this Agreement at or prior to the Closing Date, and the Company
shall have received a certificate signed on behalf of USF by the chief
executive officer and the chief financial officer of USF to such effect.
 
  (c) Tax Opinion. The Company shall have received the opinion of Kirkpatrick
& Lockhart LLP, counsel to USF, to the effect that the Merger will be treated
for Federal income tax purposes as a tax-free reorganization within the
meaning of Section 368(a) of the Code. In rendering such opinion, counsel may
rely upon representations and certificates of USF, Sub and the Company.
 
                                  ARTICLE VII
 
                           TERMINATION AND AMENDMENT
 
  Section 7.01 Termination. This Agreement may be terminated and the Merger
abandoned at any time prior to the Effective Time, whether before or after
approval by the stockholders of the Company, by written notice by the
terminating party to the other party under the circumstances set forth below:
 
  (a) by mutual written consent of USF and the Company; or
 
  (b) by either USF or the Company if the Merger shall not have been
consummated by March 31, 1998 (provided that the right to terminate this
Agreement under this Section 7.01(b) shall not be available to any party whose
failure to fulfill any material obligation under this Agreement has been a
cause of or has resulted in the failure of the Merger to occur on or before
such date); or
 
  (c) by USF or the Company, if (i) the other party has breached any
representation or warranty contained in this Agreement (except where such
breach would not have a Material Adverse Effect on the party having made such
representation or warranty and its Subsidiaries taken as a whole and would not
have a material adverse effect upon the transactions contemplated by this
Agreement), or (ii) there has been a breach of a covenant or agreement set
forth in this Agreement on the part of the other party, which shall not have
been cured within ten business days following receipt by the breaching party
of written notice of such breach from the other party (other than those set
forth in Section 5.01, as to which there shall be no cure period); or
 
  (d) by either USF or the Company if a court of competent jurisdiction or
other Governmental Authority shall have issued a nonappealable final order,
decree or ruling or taken any other action, in each case having the effect of
permanently restraining, enjoining or otherwise prohibiting the Merger; or
 
  (e) by either USF or the Company, if, at the Stockholders' Meeting
(including any adjournment or postponement), the requisite vote of the
stockholders of the Company in favor of this Agreement and the Merger shall
not have been obtained; or
 
  (f) by USF, if, after the date hereof, (i) the Company shall provide
information to or engage in negotiations regarding any Acquisition Proposal
with any person other than USF or its Affiliates, (ii) the Company Board shall
have withdrawn or modified its recommendation of this Agreement or the Merger
or shall have resolved to
 
                                     A-28
<PAGE>
 
do any of the foregoing; (iii) the Company Board shall have recommended to the
stockholders of the Company an Acquisition Transaction other than one made by
USF or an Affiliate of USF; or (iv) a tender offer or exchange offer for 50%
or more of the outstanding shares of Company Common Stock is commenced other
than by USF or an Affiliate of USF.
 
  Section 7.02 Effect of Termination. In the event of termination of this
Agreement as provided in Section 7.01, this Agreement shall immediately become
void and there shall be no liability or obligation on the part of USF, the
Company, Sub or their respective officers, directors, stockholders or
Affiliates, except as set forth in Section 7.03 and further except that
nothing herein shall relieve any party from liability for any willful breach
of this Agreement.
 
  Section 7.03 Fees and Expenses.
 
  (a) Except as set forth in this Section 7.03, all fees and expenses incurred
in connection with this Agreement and the transactions contemplated hereby
shall be paid by the party incurring such expenses, whether or not the Merger
is consummated; provided, however, that USF and the Company shall share
equally all fees and expenses, other than attorneys' fees, incurred in
relation to the printing and filing of the Proxy Statement (including any
related preliminary materials) and the Registration Statement (including
financial statements and exhibits) and any amendments or supplements.
 
  (b) The Company shall reimburse USF for out-of-pocket expenses incurred by
USF relating to the transactions contemplated by this Agreement prior to
termination (including, but not limited to, fees and expenses of USF's
counsel, accountants and financial advisors), upon the termination of this
Agreement by USF pursuant to Section 7.01(c) or Section 7.01(f), or by USF or
the Company pursuant to Section 7.01(e), and USF shall reimburse the Company
for out-of-pocket expenses incurred by the Company relating to the
transactions contemplated by this Agreement prior to termination (including,
but not limited to, fees and expenses of the Company's counsel, accountants
and financial advisors), upon the termination of this Agreement by the Company
pursuant to Section 7.01(c).
 
  (c) (i) The Company shall pay USF a termination fee of $1,250,000 upon the
earliest to occur of the termination of this Agreement by USF or the Company
pursuant to Section 7.01(e) or by USF pursuant to Section 7.01(f)(ii), (iii)
or (iv).
 
    (ii) The Company shall pay USF a termination fee of $750,000 upon the
  termination of this Agreement by USF pursuant to Section 7.01(f)(i).
 
  (d) The expenses and fees, if applicable, payable pursuant to Section
7.03(b) and 7.03(c) shall be paid within one business day after the first to
occur of any of the events described in Section 7.03(b) or 7.03(c).
 
  Section 7.04 Amendment. This Agreement may be amended by the parties hereto,
by action taken or authorized by their respective Boards of Directors, at any
time before or after approval of the matters presented in connection with the
Merger by the stockholders of the Company, but, after any such approval, no
amendment shall be made which by law requires further approval by such
stockholders without such further approval. This Agreement may not be amended
except by an instrument in writing signed on behalf of all of the parties
hereto.
 
  Section 7.05 Extension; Waiver. At any time prior to the Effective Time, the
parties hereto, by action taken or authorized by their respective Boards of
Directors, may, to the extent legally allowed, (i) extend the time for the
performance of any of the obligations or other acts of the other parties
hereto, (ii) waive any inaccuracies in the representations and warranties
contained herein or in any document delivered pursuant hereto by the other
parties hereto and (iii) waive compliance with any of the agreements or
conditions contained herein for their benefit. Any agreement on the part of a
party hereto to any such extension or waiver shall be valid only if set forth
in a written instrument signed on behalf of such party.
 
 
                                     A-29
<PAGE>
 
                                 ARTICLE VIII
 
                                 MISCELLANEOUS
 
  Section 8.01 Nonsurvival of Representations, Warranties and Agreements. None
of the representations, warranties and agreements in this Agreement or in any
instrument delivered pursuant to this Agreement shall survive the Effective
Time, except for the agreements contained in Article II, Sections 7.02, 7.03,
the last sentence of Section 7.04 and Article VIII, and the agreements of the
Affiliates of the Company delivered pursuant to Section 5.12. The
Confidentiality Agreement shall survive the execution and delivery of this
Agreement.
 
  Section 8.02 Notices. All notices and other communications hereunder shall
be in writing and shall be deemed given if delivered personally, telecopied
(which is confirmed) or mailed by registered certified mail (return receipt
requested) to the parties at the following addresses (or at such other address
for a party as shall be specified by like notice):
 
  (a) if to USF, to:
 
    United States Filter Corporation
    40-004 Cook Street
    Palm Desert, CA 92211
    Attention: Chairman
    Fax: (760) 346-4024
 
    with a copy to:
 
    United States Filter Corporation
    40-004 Cook Street
    Palm Desert, CA 92211
    Attention: Damian C. Georgino, Esq.
    Fax: (760) 346-4024
 
  (b) if to Sub, to:
 
    U.S. Filter/Consumer Products, Inc.
    225 Second Street, S.E.
    Cedar Rapids, Iowa 52401
    Attention: Randall C. Easton
    Fax: (319) 298-1148
 
    with a copy to:
 
    U.S. Filter/Consumer Products, Inc.
    225 Second Street, S.E.
    Cedar Rapids, Iowa 52401
    Attention: Caroline D. Giddings, Esq.
    Fax: (319) 298-1148
 
  (c) if to the Company, to:
 
    Puro Water Group, Inc.
    56-24 58th Street
    Maspeth, New York 11378
    Attention: Jack C. West, President
    Fax: (718) 894-8357
 
    with a copy to:
 
    Lev, Berlin & Dale, P.C.
    535 Connecticut Avenue
    Norwalk, CT 06854-1700
    Attention: Eric J. Dale, Esq.
    Fax: (203) 854-1652
 
                                     A-30
<PAGE>
 
  Section 8.03 Interpretation. When a reference is made in this Agreement to
Sections, such reference shall be to a Section of this Agreement unless
otherwise indicated. The table of contents and headings contained in this
Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement. Whenever the words "include,"
"includes" or "including" are used in this Agreement they shall be deemed to
be followed by the words "without limitation." The phrases "the date of this
Agreement", "the date hereof," and terms of similar import, unless the context
otherwise requires, shall be deemed to refer to October 8, 1997.
 
  Section 8.04 Knowledge. All references in this Agreement or any certificate
to knowledge of any person shall mean the knowledge of any officer or officers
of such person (but only the officer executing any such certificate, in the
case of a certificate) and shall reflect due inquiry by such officer or
officers in connection specifically with respect to the statement made to such
knowledge.
 
  Section 8.05 Counterparts. This Agreement may be executed in two or more
counterparts, all of which shall be considered one and the same agreement and
shall become effective when two or more counterparts have been signed by each
of the parties and delivered to the other parties, it being understood that
all parties need not sign the same counterpart.
 
  Section 8.06 Entire Agreement; No Third Party Beneficiaries. This Agreement
(including the documents and the instruments referred to herein) constitutes
the entire agreement and supersede all prior agreements and understandings,
both written and oral, among the parties with respect to the subject matter
hereof, and are not intended to confer upon any person other than the parties
hereto any rights or remedies hereunder.
 
  Section 8.07 Governing Law. This Agreement shall be governed and construed
in accordance with the laws of the State of Delaware without regard to any
applicable conflicts of law.
 
  Section 8.08 Assignment. Neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties
hereto (whether by operation of law or otherwise) without the prior written
consent of the other parties. Subject to the preceding sentence, this
Agreement will be binding upon, inure to the benefit of and be enforceable by
the parties and their respective successors and assigns.
 
                                     A-31
<PAGE>
 
  In Witness Whereof, USF, Sub and the Company have caused this Agreement to
be signed by their respective officers thereunto, duly authorized as of the
date first written above.
 
                                              PURO WATER GROUP, INC.
 
                                                    /s/ Jack C. West
                                              By:
                                                 ------------------------------
 
                                                    President
                                              Title:
                                                  -----------------------------
 
                                              UNITED STATES FILTER CORPORATION
 
                                                    /s/ Randall C. Easton
                                              By:
                                                 ------------------------------
 
                                                    Sr. Vice President
                                              Title:
                                                  -----------------------------
 
                                              USF/PW ACQUISITION CORPORATION
 
                                                    /s/ Randall C. Easton
                                              By:
                                                 ------------------------------
 
                                                    President
                                              Title:
                                                  -----------------------------
 
 
                                     A-32
<PAGE>
 
                                                                        ANNEX 1
 
                                  DEFINITIONS
 
  For purposes of this Agreement (to which this ANNEX 1 is attached and of
which this ANNEX 1 forms a part), the following terms shall have the meanings
set forth below:
 
  "1997 Financial Statements" shall have the meaning assigned thereto in
Section 5.06(b) of this Agreement.
 
  "Acquisition Proposal" shall have the meaning assigned thereto in Section
5.01(a) of this Agreement.
 
  "Acquisition Transaction" shall have the meaning assigned thereto in Section
5.01(a) of this Agreement.
 
  "Affiliate" of the Company shall mean any "affiliate" of the Company as
defined in Rule 12b-2 under the Exchange Act and, without limiting the
generality of the foregoing, shall include any person that beneficially owns
(within the meaning of Rule 13d-3 under the Exchange Act) 5% or more of the
Company Common Stock, but shall not include USF or Sub.
 
  "Affiliate Agreement" shall have the meaning assigned thereto in Section
5.11 of this Agreement.
 
  "Agreement" shall mean this Agreement and Plan of Merger.
 
  "Benefit Plans" shall have the meaning assigned thereto in Section 3.23(a)
of this Agreement.
 
  "Certificate of Incorporation" shall mean the Amended and Restated
Certificate of Incorporation, substantially in the form of Exhibit A to this
Agreement.
 
  "Certificate of Merger" shall have the meaning assigned thereto in Section
1.01 of this Agreement.
 
  "Closing" shall have the meaning assigned thereto in Section 1.02 of this
Agreement.
 
  "Closing Date" shall have the meaning assigned thereto in Section 1.02 of
this Agreement.
 
  "Code" shall mean the Internal Revenue Code of 1986, as amended, or any
successor statute thereto.
 
  "Company" shall mean Puro Water Group, Inc., a Delaware corporation.
 
  "Company Balance Sheet" shall have the meaning assigned thereto in Section
3.06(b) of this Agreement.
 
  "Company Board" shall have the meaning assigned thereto in Section 3.05(a)
of this Agreement.
 
  "Company Common Stock" shall have the meaning assigned thereto in the
preamble to this Agreement.
 
  "Company Group" shall have the meaning assigned thereto in Section 3.23(a)
of this Agreement.
 
  "Company SEC Reports" shall have the meaning assigned thereto in Section
3.06(a) of this Agreement.
 
  "Confidentiality Agreement" shall have the meaning assigned thereto in
Section 5.01(a) of this Agreement.
 
  "Constituent Corporations" shall have the meaning assigned thereto in the
preamble to this Agreement.
 
  "Continuing Corporation" shall have the meaning assigned thereto in the
preamble to this Agreement.
 
  "Contracts" shall have the meaning assigned thereto in Section 3.14 of this
Agreement.
 
  "Convertible Notes" shall have the meaning assigned thereto in Section 2.10
of this Agreement.
 
                                     A-33
<PAGE>
 
  "Credit Facility" shall refer to the Master Note dated September 13, 1996 by
and between the Company and European American Bank, the Commercial Note dated
September 13, 1996 by and between the Company and European American Bank and
the General Security Agreement dated July 31, 1996 by and between the Company
and European American Bank.
 
  "Defined Benefit Plan" shall have the meaning assigned thereto in Section
3.23(f) of this Agreement.
 
  "DGCL" shall mean the Delaware General Corporation Law, as amended.
 
  "Director Stock Option" shall have the meaning assigned thereto in Section
2.07(b) of this Agreement.
 
  "Director Stock Option Plan" shall have the meaning assigned thereto in
Section 2.07(b) of this Agreement.
 
  "Dixon Trusts" shall have the meaning assigned thereto in the Preamble to
this Agreement.
 
  "Employee Stock Option" shall have the meaning assigned thereto in Section
2.07(a) of this Agreement.
 
  "Employee Stock Option Plan" shall have the meaning assigned thereto in
Section 2.07(a) of this Agreement.
 
  "Effective Time" shall have the meaning assigned thereto in Section 1.01 of
this Agreement.
 
  "Employment Agreements" shall have the meaning assigned thereto in Section
3.21(a) of this Agreement.
 
  "Environmental Laws" shall have the meaning assigned thereto in Section
3.18(a) of this Agreement.
 
  "Environmental Permits" shall have the meaning assigned thereto in Section
3.18(a) of this Agreement.
 
  "ERISA" shall mean the Employee Retirement Income Security Act of 1974, as
amended.
 
  "ERISA Affiliate" shall have the meaning assigned thereto in Section 3.23(a)
of this Agreement.
 
  "Exchange Act" shall have the meaning assigned thereto in Section 3.05(c) of
this Agreement.
 
  "Exchange Agent" shall have the meaning assigned thereto in Section 2.02 of
this Agreement.
 
  "Governmental Authority" means any nation or government, any state, province
or other political subdivision thereof, and any entity exercising executive,
legislative, judicial, regulatory or administrative functions of a government
with jurisdiction over the matter in question.
 
  "Governmental Approval" means any permit, license, authorization, consent,
approval, waiver, exception, variance, order, or exemption issued by any
Governmental Authority.
 
  "Governmental Filings" means any plans, filings, reports, notifications, or
other submissions required to be made to any Governmental Authority.
 
  "Hazardous Material" shall have the meaning assigned thereto in Section
3.18(d) of this Agreement.
 
  "Indebtedness" shall mean, with respect to the Company, at any date, and
regardless of whether the indebtedness or obligation was created before, on or
after the date hereof (without duplication): (i) all indebtedness for borrowed
money, or other obligations or liabilities for borrowed money (including,
without limitation, letters of credit) of the Company, whether matured or
unmatured, liquidated or unliquidated, direct or contingent, joint or several,
and whether now existing or hereafter created; (ii) all indebtedness for
borrowed money secured by any mortgage, lien, pledge, charge or encumbrance
upon any property or asset of the Company; (iii) all indebtedness, obligations
or liabilities of others of the type described in the preceding clauses
 
                                     A-34
<PAGE>
 
(i) and (ii) which the Company has guaranteed, assumed or is in any other way
liable for; and (iv) all amendments, renewals, extensions or refundings of any
such indebtedness, obligation or liability.
 
  "Intellectual Property" shall mean (i) all patents, patent rights, patent
applications, trademarks, trademark applications, trade names and copyrights
used by, owned by or registered in the name of the Company or in which the
Company has any rights and (ii) all processes and formulas that the Company
uses or has the right to use which the Company believes are not within the
general knowledge of the industry and which are material to the conduct of the
business of the Company as it is now being conducted.
 
  "IRS" shall mean the Internal Revenue Service.
 
  "Liens" shall mean all mortgages, deeds of trust, pledges, liens, leases,
security interests, security agreements, conditional sales agreements, notes,
easements, restrictions, encroachments and other charges or encumbrances of
any kind whatsoever.
 
  "Material Adverse Effect" shall have the meaning assigned thereto in Section
3.01 of this Agreement.
 
  "Merger" shall have the meaning assigned thereto in the preamble to this
Agreement.
 
  "Multiemployer Plan" shall have the meaning assigned thereto in Section
3.23(g) of this Agreement.
 
  "Non-Employee Option" shall have the meaning assigned to it in Section 2.08
in this Agreement.
 
  "Per Share Purchase Price" shall have the meaning assigned thereto in
Section 2.01(b) of this Agreement.
 
  "Personal Property" shall mean all assets owned by the Company which are
personal property, other than the Intellectual Property.
 
  "Personal Property Leases" shall mean all leases, subleases, licenses or
other agreements under which the Company is lessee, sublessee or licensee of
any Personal Property and under which (i) the remaining monthly rental
obligations are at least $1,500 or (ii) the remaining rental obligations are
at least $10,000 and the remaining term is at least two years.
 
  "Predecessor" shall mean (i) a predecessor entity which has been merged with
the Company, or (ii) the predecessor owner or operator of any of the property
or assets owned or operated by the Company, where the Company is liable
(whether by reason of the contractual assumption of liabilities,
indemnification obligations or by other operation of law) for the actions or
inactions of such predecessor.
 
  "Proxy Statement" shall mean the definitive proxy statement to be
distributed to the Company's stockholders in connection with the Merger
(including all reports and other information incorporated therein by
reference) and the prospectus of USF included in the Registration Statement.
 
  "Qualified Plan" shall have the meaning assigned thereto in Section 3.23(e)
of this Agreement.
 
  "Qualified Stock Options" shall have the meaning assigned thereto in Section
2.08 of this Agreement.
 
  "Real Property" shall mean all real property owned by the Company,
including, without limitation, any property for which the Company hold any
right to acquire an ownership interest in such real property.
 
  "Real Property Leases" shall mean all leases or subleases under which the
Company is lessee or sublessee of any Real Property, and under which (i) the
remaining rental obligations are at least $15,000 or (ii) the remaining rental
obligations are at least $10,000 per year and the remaining term is at least
five years.
 
  "Registration Statement" shall mean the registration statement to be filed
with the SEC covering the shares of USF Common Stock to be issued pursuant to
this Agreement.
 
                                     A-35
<PAGE>
 
  "Required Authorizations" shall mean, with respect to any person, (i) all
consents, authorizations, approvals or other orders or actions of, or filings
or registrations with, any Federal, state, local or international governmental
authority or agency and (ii) all notices, permits, approvals, consents,
qualifications, waivers or other actions of third parties under any lease,
note, mortgage, indenture, agreement or other instrument (or, in the case of
the Company, under any Contract, Employment Agreement or any Governmental
Approval) or under any other third-party franchise, license or permit, other
than any such consents, authorizations, approvals, permits, qualifications,
waivers, orders, registrations, filings, applications or other actions, the
absence of which could not have a Material Adverse Effect with respect to such
person.
 
  "Returns" shall have the meaning assigned thereto in Section 3.09(a) of this
Agreement.
 
  "Rule 145" shall have the meaning assigned thereto in Section 5.11 of this
Agreement.
 
  "Rule 145 Affiliate" shall have the meaning assigned thereto in Section 5.11
of this Agreement.
 
  "Savoy Asset Purchase Agreement" shall mean the Asset Purchase Agreement
dated as of April 14, 1997 by and between the Company, Savoy Refreshment
Service, Inc., d/b/a Dial Refreshment Services and Lou Betti.
 
  "SEC" shall have the meaning assigned thereto in Section 3.05(c) of this
Agreement.
 
  "Securities Act" shall have the meaning assigned thereto in Section 2.06 of
this Agreement.
 
  "Stockholder Agreements" shall have the meaning assigned thereto in the
preamble to this Agreement.
 
  "Stockholders" shall have the meaning assigned thereto in the preamble to
this Agreement.
 
  "Stockholders' Meeting" shall have the meaning assigned thereto in Section
3.25 of this Agreement.
 
  "Sub" shall mean USF/PW Acquisition Corporation, a Delaware corporation and
a wholly owned subsidiary of USF.
 
  "Subsidiary" shall mean, with respect to any party, any corporation, other
organization, whether incorporated or unincorporated, of which (i) such party
or any other Subsidiary of such party is a general partner (excluding
partnerships, the general partnership interests of which held by such party or
any Subsidiary of such party do not have a majority of the voting interest in
such partnership) or (ii) at least a majority of the securities or other
interests having by their terms ordinary voting power to elect a majority of
the Board of Directors or others performing similar functions with respect to
such corporation or other organization is directly or indirectly owned or
controlled by such party or by any one or more of its Subsidiaries, or by such
party and one or more of its Subsidiaries.
 
  "Superior Proposal" shall have the meaning assigned thereto in Section
5.01(a) of this Agreement.
 
  "Tax" or, collectively, "Taxes," shall mean any and all Federal, state,
local and international taxes, assessments and other governmental charges,
duties, impositions and liabilities including taxes based upon or measured by
gross receipts, income profits, sales, use and occupation, and value added, ad
valorem, transfer, franchise, withholding, payroll, recapture, employment,
excise and property taxes, together with all interest, penalties and additions
imposed with respect to such amounts and any obligations under any agreements
or arrangements with any other person with respect to such amounts and
including any liability for taxes of a predecessor entity.
 
  "Underwriter's Warrant" shall have the meaning assigned thereto in Section
2.09 of this Agreement.
 
  "USF" shall mean United States Filter Corporation, a Delaware corporation.
 
  "USF Balance Sheet" shall have the meaning assigned thereto in Section
4.04(b) of this Agreement.
 
  "USF Common Stock" shall have the meaning assigned thereto in Section
2.01(b) of this Agreement.
 
  "USF SEC Reports" shall have the meaning assigned thereto in Section 4.04(a)
of this Agreement.
 
                                     A-36
<PAGE>
 
                                                                      EXHIBIT A
 
                             AMENDED AND RESTATED
                         CERTIFICATE OF INCORPORATION
 
                                      OF
 
                            PURO WATER GROUP, INC.
                           (a Delaware corporation)
 
(Duly Adopted in Accordance with Section 245 of the General Corporation Law of
                                   Delaware)
 
  First: The name of the Corporation is Puro Water Group, Inc. (the
"Corporation"). The original Certificate of Incorporation for the Corporation
was filed with the Secretary of State on January 7, 1994 under the name Puro
Corporation of America.
 
  Second: The address of the corporation's registered office in the State of
Delaware is 1013 Centre Road, in the City of Wilmington, County of New Castle.
The name of its registered agent at such address is Corporation Service
Company.
 
  Third: The purpose of the corporation is to engage in any lawful act or
activity for which corporations may be organized under the General Corporation
Law of the State of Delaware.
 
  Fourth: The total number of shares of stock which the Corporation shall have
the authority to issue is 1,000 shares of Common Stock, with a par value of
$.01 per share.
 
  Fifth: The board of directors shall have the power to adopt, amend or repeal
the bylaws of the Corporation at any meeting at which a quorum is present by
the affirmative vote of a majority of the whole board of directors. Election
of directors need not be by written ballot. Any director may be removed at any
time with or without cause, and the vacancy resulting from such removal shall
be filled, by vote of a majority of the stockholders at a meeting called for
that purpose or by unanimous consent in writing of the stockholders.
 
  Sixth: No director of the Corporation shall be liable to the Corporation or
its stockholders for monetary damages for breach of fiduciary duty as a
director, except for liability (i) for any breach of the director's duty of
loyalty to the Corporation or its stockholders (ii) for acts or omissions not
in good faith or which involve intentional misconduct or a knowing violation
of law, (iii) under Section 174 of the General Corporation Law of the State of
Delaware, or (iv) for any transaction from which the director derived an
improper personal benefit.
 
                                     A-37
<PAGE>
 
                                                                      EXHIBIT B
 
             [Form of Puro Water Group, Inc. Affiliate Agreement]
 
                                                                         , 1997
 
United States Filter Corporation
40-004 Cook Street
Palm Desert, CA 92211
 
Ladies and Gentlemen:
 
  The undersigned has been advised that as of the date hereof the undersigned
may be deemed to be an "affiliate" of Puro Water Group, Inc., a Delaware
corporation ("Company"), as the term "affiliate" is (i) defined for purposes
of paragraphs (c) and (d) of Rule 145 of the Rules and Regulations (the "Rules
and Regulations") of the United States Securities and Exchange Commission (the
"Commission") under the United States Securities Act of 1933, as amended (the
"Act"), and/or (ii) used in and for purposes of Accounting Series Releases 130
and 135, as amended, of the Commission. Pursuant to the terms of the Agreement
and Plan of Merger, dated as of October 8, 1997 (the "Agreement"), among
United States Filter Corporation, a Delaware corporation (the "Company"),
USF/PW Acquisition Corporation, a Delaware corporation and a wholly owned
subsidiary of the Company ("Sub") and the Company, at the Effective Time (as
defined in the Agreement) the Company will be merged with and into Sub (the
"Merger"), and the Company will become a whole owned subsidiary of the
Company.
 
  As a result of the Merger, the undersigned may receive shares of Common
Stock, par value $.01 per share ("USF Common Stock"), of the Company. The
undersigned would receive such shares in exchange for shares of Common Stock,
par value $.0063 per share, of the Company owned by the undersigned.
 
  The undersigned hereby represents and warrants to, and covenants with, the
Company that in the event the undersigned receives any USF Common Stock in the
Merger:
 
    (A) The undersigned shall not make any sale, transfer or other
  disposition of the USF Common Stock in violation of the Act or the Rules
  and Regulations.
 
    (B) The undersigned has carefully read this letter and discussed its
  requirements and other applicable limitations upon the undersigned's
  ability to sell, transfer or otherwise dispose of the USF Common Stock, to
  the extent the undersigned has felt it necessary, with the undersigned's
  counsel or counsel for the Company.
 
    (C) The undersigned has been advised that the issuance of shares of USF
  Common Stock to the undersigned in the Merger has been registered under the
  Act by a Registration Statement on Form S-4. However, the undersigned has
  also been advised that because (i) at the time of the Merger's submission
  for a vote of the stockholders of the Company the undersigned may be deemed
  an affiliate of the Company and (ii) the distribution by the undersigned of
  the USF Common Stock has not been registered under the Act, the undersigned
  may not sell, transfer or otherwise dispose of USF Common Stock issued to
  the undersigned in the Merger unless (a) such sale, transfer or other
  disposition has been registered under the Act, (b) such sale, transfer or
  other disposition is made in conformity with the volume and other
  limitations imposed by Rule 145 under the Act, or (c) in the opinion of
  counsel reasonably acceptable to the Company, such sale, transfer or other
  disposition is otherwise exempt from registration under the Act.
 
                                     A-38
<PAGE>
 
    (D) The undersigned understands that the Company will be under no
  obligation to register the sale, transfer or other disposition of the USF
  Common Stock by the undersigned or on the undersigned's behalf under the
  Act or to take any other action necessary in order to make compliance with
  an exemption from such registration available.
 
    (E) The undersigned understands that stop transfer instructions will be
  given to the Company's transfer agent with respect to the USF Common Stock
  owned by the undersigned and that there may be placed on the certificates
  for the USF Common Stock issued to the undersigned, or any substitutions
  therefor, a legend stating in substance:
 
       "The shares represented by this certificate were issued in a
     transaction to which Rule 145 under the United States
     Securities Act of 1933 applies. The shares represented by this
     certificate may only be transferred in accordance with the
     terms of a letter agreement dated      , 1997, a copy of which
     agreement is on file at the principal offices of United States
     Filter Corporation."
 
    (F) The undersigned also understands that unless the transfer by the
  undersigned of the undersigned's USF Common Stock has been registered under
  the Act or is a sale made in conformity with the provisions of Rule 145
  under the Act, the Company reserves the right, in its sole discretion, to
  place the following legend on the certificates issued to any transferee of
  shares from the undersigned:
 
       "The shares represented by this certificate have not been
     registered under the Securities Act of 1933 (the "Act") and
     were acquired from a person who received such shares in a
     transaction to which Rule 145 under the Act applies. The
     shares have been acquired by the holder not with a view to, or
     for resale in connection with, any distribution thereof within
     the meaning of the Act and may not be offered, sold, pledged
     or otherwise transferred except in accordance with an
     exemption from the registration requirements of the Act."
 
  It is understood and agreed that the legend set forth in paragraph E or F
above shall be removed by delivery of substitute certificates without such
legend if the undersigned shall have delivered to the Company (i) a copy of a
letter from the staff of the Commission, or an opinion of counsel, in form and
substance reasonably satisfactory to the Company to the effect that such
legend is not required for purposes of the Act or (ii) reasonably satisfactory
evidence or representations that the shares represented by such certificates
are being or have been transferred in a transaction made in conformity with
the provisions of Rule 145.
 
  The undersigned further represents and warrants to, and covenants with, the
Company that the undersigned did not, within the 30 days prior to the
Effective Time (as defined in the Agreement), sell, transfer or otherwise
dispose of any shares of the capital stock of either the Company or the
Company held by the undersigned, and that the undersigned will not sell,
transfer or otherwise dispose of the USF Common Stock received by the
undersigned in the Merger or other shares of the capital stock of the Company
until after such time as results covering at least 30 days of combined
operations of the Company and the Company have been published by the Company
within the meaning of Section 201.01 of the Commission's Codification of
Financial Reporting Policies.
 
                                              Very truly yours,
 
Acknowledged this    day of     , 1997.
 
UNITED STATES FILTER CORPORATION
 
By:
  -----------------------------
  Name:
  Title:
 
                                     A-39
<PAGE>
 
                                                                        ANNEX B
 
                             STOCKHOLDER AGREEMENT
 
  This Stockholder Agreement, dated as of    , 1997, by and between UNITED
STATES FILTER CORPORATION, a Delaware corporation ("USF"), and the stockholder
listed on the signature page hereof (the "Stockholder");
 
                                  WITNESSETH:
 
  Whereas, the Stockholder, as of the date hereof, is the owner of the number
of shares of Common Stock, par value $.0063 per share (the "Common Stock"), of
PURO WATER GROUP, INC., a Delaware corporation (the "Company"), set forth
below the name of the Stockholder on the signature page hereof (the "Shares");
 
  Whereas, in reliance upon the execution and delivery of this Agreement, USF
and a wholly-owned subsidiary of USF ("Sub") will enter into an Agreement and
Plan of Merger, dated as of the date hereof (the "Merger Agreement"), with
Puro which provides, among other things, that upon the terms and subject to
the conditions thereof Sub will be merged with and into Puro, and Puro will
become a wholly-owned subsidiary of USF (the "Merger"); and
 
  Whereas, to induce USF to enter into the Merger Agreement and to incur the
obligations set forth therein, the Stockholder is entering into this Agreement
pursuant to which the Stockholder agrees to vote in favor of the Merger and
certain other matters as set forth herein, and to make certain agreements with
respect to the Shares upon the terms and conditions set forth herein;
 
  Now, Therefore, in consideration of the foregoing and of the mutual
covenants and agreements set forth herein and for other good and valuable
consideration, the receipt and adequacy of which is hereby acknowledged, the
parties hereto agree as follows:
 
  Section 1. Voting of Shares; Proxy. The Stockholder agrees that until the
earlier of the Effective Time (as defined in the Merger Agreement) and the
date on which the Merger Agreement is terminated in accordance with Article
VII thereof (the earliest thereof being hereinafter referred to as the
"Expiration Date"), the Stockholder shall vote all Shares owned by the
Stockholder at any meeting of Puro's stockholders (whether annual or special
and whether or not an adjourned meeting), or, if applicable, take action by
written consent (i) for adoption and approval of the Merger Agreement and in
favor of the Merger and any other transaction contemplated by the Merger
Agreement as such Merger Agreement may be modified or amended from time to
time and (ii) against any action, omission or agreement which would or could
impede or interfere with, or have the effect of discouraging, the Merger,
including, without limitation, any Acquisition Transaction (as defined in the
Merger Agreement) other than the Merger. Any such vote shall be cast or
consent shall be given in accordance with such procedures relating thereto as
shall ensure that it is duly counted for purposes of determining that a quorum
is present and for purposes of recording the results of such vote or consent.
 
  At the request of USF, the Stockholder, in furtherance of the transactions
contemplated hereby and by the Merger Agreement, and in order to secure the
performance by the Stockholder of his or her duties under this Agreement,
shall promptly execute, in accordance with the provisions of Section 212 of
the Delaware General Corporation Law, and deliver to USF, an irrevocable
proxy, substantially in the form of Annex A hereto, and irrevocably appoint
USF or its designees, with full power of substitution, his attorney and proxy
to vote, or, if applicable, to give consent with respect to, all of the Shares
owned by the Stockholder in respect of any of the matters set forth in, and in
accordance with the provisions of, clauses (i) and (ii) above of Section 1(a).
The Stockholder acknowledges that the proxy executed and delivered by him or
her shall be coupled with an interest, shall constitute, among other things,
an inducement for USF to enter into the Merger Agreement, shall be irrevocable
and shall not be terminated by operation of law upon the occurrence of any
event, including, without
 
                                      B-1
<PAGE>
 
limitation, the death or incapacity of the Stockholder. Notwithstanding any
provision contained in such proxy, such proxy shall terminate upon the
Expiration Date.
 
  Section 2. Covenants of the Stockholder. The Stockholder covenants and
agrees for the benefit of USF that, until the Expiration Date, he or she will:
 
    (a) not sell, transfer, pledge, hypothecate, encumber, assign, tender or
  otherwise dispose of, or enter into any contract, option or other
  arrangement or understanding with respect to the sale, transfer, pledge,
  hypothecation, encumbrance, assignment, tender or other disposition of, any
  of the Shares owned by him or her or any interest therein;
 
    (b) other than as expressly contemplated by this Agreement, not grant any
  powers of attorney or proxies or consents in respect of any of the Shares
  owned by him or her, deposit any of the Shares owned by him or her into a
  voting trust, enter into a voting agreement with respect to any of the
  Shares owned by him or her or otherwise restrict the ability of the holder
  of any of the Shares owned by him or her freely to exercise all voting
  rights with respect thereto;
 
    (c) not, and he or she shall direct and use his best efforts to cause his
  or her agents and representatives not to, initiate, solicit or encourage,
  directly or indirectly, any inquiries or the making or implementation of
  any Acquisition Proposal or engage in any negotiations concerning, or
  provide any confidential information or data to, or have any discussions
  with, any person relating to an Acquisition Proposal, or otherwise
  facilitate any effort or attempt to make or implement an Acquisition
  Proposal. The Stockholder shall immediately cease and cause to be
  terminated any existing activities, including discussions or negotiations
  with any parties, conducted heretofore with respect to any of the foregoing
  and will take the necessary steps to inform his or her agents and
  representatives of the obligations undertaken in this Section 2(c). The
  Stockholder shall notify USF immediately if any such inquiries or proposals
  are received by, any such information is requested from, or any such
  negotiations or discussions are sought to be initiated or continued with,
  him or her;
 
    (d) not take any action whatsoever that, based on advice from USF's or
  Puro's independent auditors would or could prevent the Merger from
  qualifying for "pooling of interests" accounting treatment; and
 
    (e) use his or her best efforts to take, or cause to be taken, all
  action, and do, or cause to be done, all things necessary or advisable in
  order to consummate and make effective the transactions contemplated by
  this Agreement and the Merger Agreement, including, without limitation, to
  enter into an affiliate's letter agreement substantially in the form of
  Exhibit B to the Merger Agreement.
 
  Section 3. Covenants of USF. USF covenants and agrees for the benefit of the
Stockholder that (a) immediately upon execution of this Agreement, USF shall
enter into the Merger Agreement, and (b) until the Expiration Date, it shall
use all reasonable efforts to take, or cause to be taken, all action, and do,
or cause to be done, all things necessary or advisable in order to consummate
and make effective the transactions contemplated by this Agreement and the
Merger Agreement, consistent with the terms and conditions of each such
agreement; provided, however, that nothing in this Section 3 or any other
provision of this Agreement is intended, nor shall it be construed, to limit
or in any way restrict USF's right or ability to exercise any of its rights
under the Merger Agreement.
 
  Section 4. Representations and Warranties of the Stockholder. The
Stockholder represents and warrants to USF that: (a) the execution, delivery
and performance by the Stockholder of this Agreement will not conflict with,
require a consent, waiver or approval under, or result in a breach of or
default under, any of the terms of any contract, commitment or other
obligation (written or oral) to which the Stockholder is bound; (b) this
Agreement has been duly executed and delivered by the Stockholder and
constitutes a legal, valid and binding obligation of the Stockholder,
enforceable against the Stockholder in accordance with its terms; (c) the
Stockholder is the sole owner of the Shares and the Shares represent all
shares of Common Stock owned by the Stockholder at the date hereof, and the
Stockholder does not have any right to acquire, nor is he or she the
"beneficial owner" (as such term is defined in Rule 13d-3 under the Securities
Exchange Act of 1934, as amended) of, any other shares of any class of capital
stock of Puro or any securities convertible into or
 
                                      B-2
<PAGE>
 
exchangeable or exercisable for any shares of any class of capital stock of
Puro (other than shares subject to options granted by Puro); (d) the
Stockholder has full right, power and authority to execute and deliver this
Agreement and to perform his or her obligations hereunder, subject only to any
interest which the spouse of the Stockholder may have in the Shares owned by
the Stockholder, such spouse having executed a Stockholder Agreement in his or
her own right; and (e) the Stockholder owns the Shares free and clear of all
liens, claims, pledges, charges, proxies, restrictions, encumbrances, voting
trusts and voting agreements of any nature whatsoever other than as provided
by this Agreement. The representations and warranties contained herein shall
be made as of the date hereof and as of each day from the date hereof through
and including the Effective Time (as defined in the Merger Agreement).
 
  Section 5. Adjustments; Additional Shares. In the event (a) of any stock
dividend, stock split, merger (other than the Merger), recapitalization,
reclassification, combination, exchange of shares or the like of the capital
stock of Puro on, of or affecting the Shares or (b) that the Stockholder shall
become the beneficial owner of any additional shares of Common Stock or other
securities entitling the holder thereof to vote or give consent with respect
to the matters set forth in Section 1, then the terms of this Agreement shall
apply to the shares of capital stock or other instruments or documents held by
the Stockholder immediately following the effectiveness of the events
described in clause (a) or the Stockholder becoming the beneficial owner
thereof as described in clause (b), as though, in either case, they were
Shares hereunder.
 
  Section 6. Legend. Concurrently with the execution of this Agreement, the
Stockholder is surrendering to Puro the certificates representing the Shares,
and is hereby requesting that the following legend be placed on the
certificates representing such Shares and shall request that such legend
remain thereon until the Expiration Date:
 
    "The shares of capital stock represented by this certificate are
    subject to a Stockholder Agreement, dated as of    , 1997,
    between      and United States Filter Corporation, which, among
    other things, restricts the sale or transfer of such shares
    except in accordance therewith and contains certain voting
    restrictions to which such shares are subject."
 
In the event that the Stockholder shall become the beneficial owner of any
additional shares of Common Stock or other securities entitling the holder
thereof to vote or give consent with respect to the matters set forth in
Section 1, the Stockholder shall, upon acquiring such beneficial ownership,
surrender to Puro the certificates representing such shares or securities and
request that the foregoing legend be placed on such certificates and remain
thereon until the Expiration Date. In the event that USF requests that an
irrevocable proxy be executed and delivered by the Stockholder to it pursuant
to Section 1, the Stockholder shall promptly surrender to Puro the
certificates representing the Shares covered by such proxy and cause the
foregoing legend to be revised to replace at the end of such legend the words
"and contains certain voting restrictions to which such shares are subject"
with the following:
 
    ", and such shares are also subject to an irrevocable proxy
    provided under Section 212 of the Delaware General Corporation
    Law"
 
The Stockholder shall provide USF with satisfactory evidence of his or her
compliance with this Section 6 on or prior to the date five business days
after the execution hereof or of the request relating to the Stockholder's
proxy, as the case may be.
 
  Section 7. Specific Performance. The Stockholder acknowledges that the
agreements contained in this Agreement are an integral part of the
transactions contemplated by the Merger Agreement, and that, without these
agreements, USF would not enter into the Merger Agreement, and acknowledges
that damages would be an inadequate remedy for any breach by him or her of the
provisions of this Agreement. Accordingly, the Stockholder and USF each agree
that the obligations of the parties hereunder shall be specifically
enforceable and neither party shall take any action to impede the other from
seeking to enforce such right of specific performance.
 
 
                                      B-3
<PAGE>
 
  Section 8. Notices. All notices, requests, claims, demands and other
communications hereunder shall be effective upon receipt (or refusal of
receipt), shall be in writing and shall be delivered in person, by telecopy or
telefacsimile, by telegram, by next-day courier service, or by mail
(registered or certified mail, postage prepaid, return receipt requested) to
the Stockholder at the address listed on the signature page hereof, and to USF
c/o U.S. Filter/Consumer Products, Inc., 225 Second Street, S.E., Cedar
Rapids, Iowa 52401, Attention: Caroline D. Giddings, (319) 298-1154, or to
such other address or telecopy number as any party may have furnished to the
other in writing in accordance herewith.
 
  Section 9. Binding Effect; Survival. Upon execution and delivery of this
Agreement by USF, this Agreement shall become effective as to the Stockholder
at the time the Stockholder executes and delivers this Agreement. This
Agreement shall inure to the benefit of and be binding upon the parties hereto
and their respective heirs, personal representatives, successors and assigns.
 
  Section 10. Governing Law. This Agreement shall be governed by and construed
in accordance with the laws of the State of Delaware applicable to agreements
made and to be performed entirely within such State.
 
  Section 11. Counterparts. This Agreement may be executed in two
counterparts, both of which shall be an original and both of which together
shall constitute one and the same agreement.
 
  Section 12. Effect of Headings. The section headings herein are for
convenience of reference only and shall not affect the construction hereof.
 
  Section 13. Additional Agreements; Further Assurance. Subject to the terms
and conditions herein provided, each of the parties hereto agrees to use all
reasonable efforts to take, or cause to be taken, all action and to do, or
cause to be done, all things necessary, proper or advisable to consummate and
make effective the transactions contemplated by this Agreement. The
Stockholder will provide USF with all documents which may reasonably be
requested by USF and will take reasonable steps to enable USF to obtain all
rights and benefits provided it hereunder.
 
  Section 14. Amendment; Waiver. No amendment or waiver of any provision of
this Agreement or consent to departure therefrom shall be effective unless in
writing and signed by USF and the Stockholder, in the case of an amendment, or
by the party which is the beneficiary of any such provision, in the case of a
waiver or a consent to depart therefrom.
 
  IN WITNESS WHEREOF, this Agreement has been duly executed by the parties
hereto all as of the day and year first above written.
 
                                          United States Filter Corporation
 
                                               /s/ Randall C. Easton
                                          By __________________________________
                                          Name: Randall C. Easton
                                          Title: Senior Vice President
 
STOCKHOLDER
 
Name:
Address:
Number of Shares:
 
                                      B-4
<PAGE>
 
                                                                        ANNEX A
 
                                [FORM OF PROXY]
 
                               IRREVOCABLE PROXY
 
  In order to secure the performance of the duties of the undersigned pursuant
to the Stockholder Agreement, dated as of    , 1997 (the "Stockholder
Agreement"), between the undersigned and United States Filter Corporation, a
Delaware corporation, a copy of such agreement being attached hereto and
incorporated by reference herein, the undersigned hereby irrevocably appoints
Damian C. Georgino and Caroline D. Giddings, and each of them, the attorneys,
agents and proxies, with full power of substitution in each of them, for the
undersigned and in the name, place and stead of the undersigned, in respect of
any of the matters set forth in clauses (i) and (ii) of Section 1 of the
Stockholder Agreement, to vote or, if applicable, to give written consent, in
accordance with the provisions of said Section 1 and otherwise act (consistent
with the terms of the Stockholder Agreement) with respect to all shares of
Common Stock, par value $.0063 per share (the "Shares"), of Puro Water Group,
Inc., a Delaware corporation (the "Company"), whether now owned or hereafter
acquired, which the undersigned is or may be entitled to vote at any meeting
of Puro held after the date hereof, whether annual or special and whether or
not an adjourned meeting, or, if applicable, to give written consent with
respect thereto. THIS PROXY IS COUPLED WITH AN INTEREST, SHALL BE IRREVOCABLE
AND BINDING ON ANY SUCCESSOR IN INTEREST OF THE UNDERSIGNED AND SHALL NOT BE
TERMINATED BY OPERATION OF LAW UPON THE OCCURRENCE OF ANY EVENT, INCLUDING,
WITHOUT LIMITATION, THE DEATH OR INCAPACITY OF THE UNDERSIGNED. This Proxy
shall operate to revoke any prior proxy as to the Shares heretofore granted by
the undersigned. This Proxy shall terminate on the Expiration Date (as defined
in the Stockholder Agreement). This Proxy has been executed in accordance with
Section 212 of the Delaware General Corporation Law.
 
                                          Dated: ______________________________
 
                                      B-5
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
  The Certificate of Incorporation and the By-laws of Puro provide for the
indemnification of directors and officers to the fullest extent permitted by
the General Corporation Law of the State of Delaware, the state of
incorporation of Puro.
 
  Section 145 of the General Corporation Law of the State of Delaware
authorizes indemnification when a person is made a party or is threatened to
be made a party to any proceeding by reason of the fact that such person is or
was a director, officer, employee or agent of the corporation or is or was
serving as a director, officer, employee or agent of another enterprise, at
the request of the corporation, and if such person acted in good faith and in
a manner reasonably believed by him or her to be in, or not opposed to, the
best interests of the corporation. With respect to any criminal proceeding,
such person must have had no reasonable cause to believe that his or her
conduct was unlawful. If it is determined that the conduct of such person
meets these standards, he or she may be indemnified for expenses incurred
(including attorney's fees), judgments, fines and amounts paid in settlement
actually and reasonably incurred by him or her in connection with such
proceeding.
 
  If such a proceeding is brought by or in the right of the corporation (i.e.,
a derivative suit), such person may be indemnified against expenses actually
and reasonably incurred if he or she acted in good faith and in a manner
reasonably believed by him or her to be in, or not opposed to, the best
interests of the corporation. There can be no indemnification with respect to
any matter as to which such person is adjudged to be liable to the
corporation; however, a court may, even in such case, allow such
indemnification to such person for such expenses as the court deems proper.
 
  Where such person is successful in any such proceeding, he or she is
entitled to be indemnified against expenses actually and reasonably incurred
by him or her. In all other cases, indemnification is made by the corporation
upon determination by it that indemnification of such person is proper because
such person has met the applicable standard of conduct.
 
  Puro maintains an errors and omissions liability policy for the benefit of
its officers and directors, which may cover certain liabilities of such
individuals to Puro.
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
  (a) Exhibits. The following exhibits are filed as part of this registration
statement:
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                DESCRIPTION
 -------                               -----------
 <C>     <S>
 2.01    Agreement and Plan of Merger dated as of October 8, 1997 by and among
         United States Filter Corporation, USF/PW Acquisition Corporation and
         Puro Water Group, Inc. (filed herewith; attached as Annex A to the
         Proxy Statement/Prospectus)
 2.02    Form of Stockholder Agreement dated as of October 8, 1997 between
         United States Filter Corporation and certain stockholders of Puro
         Water Group, Inc., together with schedule (filed herewith; attached as
         Annex B to the Proxy Statement/Prospectus)
 3.01    Restated Certificate of Incorporation of United States Filter
         Corporation, as amended (incorporated by reference to Exhibit 3.0 to
         Form 10-K dated March 31, 1997 (File No. 1-10728))
 3.02    Restated Bylaws of United States Filter Corporation (incorporated by
         reference to Exhibit 3.1 to Form 10-K dated March 31, 1997 (File No.
         1-10728))
 4.01    Amended and Restated Multicurrency Credit Agreement dated as of
         October 20, 1997 by and among United States Filter Corporation and
         various lenders, with BankBoston, N.A. as Managing Agent (filed
         herewith)
 5.01    Opinion of Kirkpatrick & Lockhart LLP as to the legality of the
         securities being registered (to
         be filed by amendment)
 5.02    Opinion of Lev, Berlin & Dale, P.C. (to be filed by amendment)
 
</TABLE>
 
                                     II-1
<PAGE>
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                DESCRIPTION
 -------                               -----------
 <C>     <S>
  8.01   Opinion of Kirkpatrick & Lockhart LLP as to certain tax matters (to be
         filed by amendment)
 21.01   Schedule of Subsidiaries (incorporated by reference to Exhibit 21.0 to
         Form 10-K dated March 31, 1997 (File No. 1-10728))
 23.01   Consent of Kirkpatrick & Lockhart LLP (included in Exhibit 5.01)
 23.02   Consent of KPMG Peat Marwick LLP (filed herewith)
 23.03   Consent of Arthur Andersen LLP (filed herewith)
 24.01   Powers of Attorney (included on signature page of this registration
         statement)
 99.01   Form of Proxy to be distributed to the stockholders of Puro Water
         Group, Inc. (filed herewith)
</TABLE>
 
ITEM 22. UNDERTAKINGS.
 
  The undersigned registrant hereby undertakes:
 
    (1) To file, during any period in which offers or sales are being made, a
  post-effective amendment to this registration statement:
 
      (i) To include any prospectus required by section 10(a)(3) of the
    Securities Act of 1933;
 
      (ii) To reflect in the prospectus any facts or events arising after
    the effective date of the registration statement (or the most recent
    post-effective amendment thereof) which, individually or in the
    aggregate, represent a fundamental change in the information set forth
    in the registration statement;
 
      (iii) To include any material information with respect to the plan of
    distribution not previously disclosed in the registration statement or
    any material change to such information in the registration statement.
 
  Provided, however, that paragraphs (i) and (ii) do not apply if the
  registration statement is on Form S-3, Form S-8 or Form F-3, and the
  information required to be included in a post-effective amendment by those
  paragraphs is contained in periodic reports filed with or furnished to the
  Commission by the registrant pursuant to section 13 or section 15(d) of the
  Securities Exchange Act of 1934 that are incorporated by reference in the
  registration statement.
 
    (2) That, for the purpose of determining any liability under the
  Securities Act of 1933, each such post- effective amendment shall be deemed
  to be a new registration statement relating to the securities offered
  therein, and the offering of such securities at the time shall be deemed to
  be the initial bona fide offering thereof.
 
    (3) To remove from registration by means of a post-effective amendment
  any of the securities being registered which remain unsold at the
  termination of the offering.
 
    (4) That, for purposes of determining any liability under the Securities
  Act of 1933, each filing of the registrant's annual report pursuant to
  section 13(a) or section 15(d) of the Securities Exchange Act of 1934 that
  is incorporated by reference in the registration statement shall be deemed
  to be a new registration statement relating to the securities offered
  therein, and the offering of such securities at that time shall be deemed
  to be the initial bona fide offering thereof.
 
    (5) That prior to any public reoffering of the securities registered
  hereunder through use of a prospectus which is a part of this registration
  statement, by any person or party who is deemed to be an underwriter within
  the meaning of Rule 145(c), the issuer undertakes that such reoffering
  prospectus will contain the information called for by the applicable
  registration form with respect to reofferings by persons who may be deemed
  underwriters, in addition to the information called for by the other Items
  of the applicable form.
 
    (6) That every prospectus (i) that is filed pursuant to paragraph (5)
  immediately preceding, or (ii) that purports to meet the requirements of
  section 10(a)(3) of the Act and is used in connection with an offering
 
                                     II-2
<PAGE>
 
  of securities subject to Rule 415, will be filed as a part of an amendment
  to the registration statement and will not be used until such amendment is
  effective, and that, for purposes of determining any liability under the
  Securities Act of 1933, each such post-effective amendment shall be deemed
  to be a new registration statement relating to the securities offered
  therein, and the offering of such securities at that time shall be deemed
  to be the initial bona fide offering thereof.
 
    (7) To respond to requests for information that is incorporated by
  reference into the prospectus pursuant to Items 4, 10(b), 11, or 13 of this
  Form, within one business day of receipt of such request, and to send the
  incorporated documents by first class mail or other equally prompt means.
  This includes information contained in documents filed subsequent to the
  effective date of the registration statement through the date of responding
  to the request.
 
    (8) To supply by means of a post-effective amendment all information
  concerning a transaction, and Puro being acquired involved therein, that
  was not the subject of and included in the registration statement when it
  became effective.
 
  Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the
registrant in the successful defense of any action, suit or proceeding) is
asserted by such director, officer or controlling person in connection with
the securities being registered, the registrant will, unless in the opinion of
its counsel the matter has been settled by controlling precedent, submit to a
court of appropriate jurisdiction the question whether such indemnification by
it is against public policy as expressed in the Act and will be governed by
the final adjudication of such issue.
 
                                     II-3
<PAGE>
 
                                  SIGNATURES
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT
HAS DULY CAUSED THIS REGISTRATION STATEMENT TO BE SIGNED ON ITS BEHALF BY THE
UNDERSIGNED, THEREUNTO DULY AUTHORIZED, IN THE CITY OF PALM DESERT, STATE OF
CALIFORNIA, ON NOVEMBER 5, 1997.
 
                                          United States Filter Corporation
 
                                                  /s/ Richard J. Heckmann
                                          By: _________________________________
                                              RICHARD J. HECKMANN CHAIRMAN OF
                                              THE BOARD, PRESIDENT AND CHIEF
                                                     EXECUTIVE OFFICER
 
  KNOW ALL PERSONS BY THESE PRESENTS, THAT EACH PERSON WHOSE SIGNATURE APPEARS
BELOW CONSTITUTES AND APPOINTS KEVIN L. SPENCE AND DAMIAN C. GEORGINO, AND
EACH OF THEM, HIS TRUE AND LAWFUL ATTORNEYS-IN-FACT AND AGENTS, WITH FULL
POWER OF SUBSTITUTION AND RESUBSTITUTION, FOR HIM AND IN HIS NAME, PLACE AND
STEAD, IN ANY AND ALL CAPACITIES, TO SIGN ANY AND ALL AMENDMENTS TO THIS
REGISTRATION STATEMENT, INCLUDING POST-EFFECTIVE AMENDMENTS, AND TO FILE THE
SAME, WITH ALL EXHIBITS THERETO, AND OTHER DOCUMENTATION IN CONNECTION
THEREWITH, WITH THE SECURITIES AND EXCHANGE COMMISSION, GRANTING UNTO SAID
ATTORNEYS-IN-FACT AND AGENTS FULL POWER AND AUTHORITY TO DO AND PERFORM EACH
AND EVERY ACT AND THING REQUISITE AND NECESSARY TO BE DONE IN OR ABOUT THE
PREMISES, AS FULLY TO ALL INTENTS AND PURPOSES AS HE MIGHT OR COULD DO IN
PERSON, HEREBY RATIFYING AND CONFIRMING ALL THAT SAID ATTORNEYS-IN-FACT AND
AGENTS, OR THEIR SUBSTITUTE OR SUBSTITUTES, MAY LAWFULLY DO OR CAUSE TO BE
DONE BY VIRTUE HEREOF.
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THIS
REGISTRATION STATEMENT HAS BEEN SIGNED BY THE FOLLOWING PERSONS IN THE
CAPACITIES AND ON THE DATES INDICATED.
 
              SIGNATURE                      CAPACITY                DATE
 
       /s/ Richard J. Heckmann         Chairman of the           November 5,
- -------------------------------------   Board, President             1997
         RICHARD J. HECKMANN            and Chief Executive
                                        Officer (Principal
                                        Executive Officer)
                                        and a Director
 
         /s/ Kevin L. Spence           Senior Vice               November 5,
- -------------------------------------   President and Chief          1997
           KEVIN L. SPENCE              Financial Officer
                                        (Principal
                                        Financial and
                                        Accounting Officer)
 
       /s/ Michael J. Reardon          Executive Vice            November 5,
- -------------------------------------   President and a              1997
         MICHAEL J. REARDON             Director
 
        /s/ Nicholas C. Memmo          Executive Vice            November 5,
- -------------------------------------   President--Process           1997
          NICHOLAS C. MEMMO             Water and a
                                        Director
<PAGE>
 
              SIGNATURE                       CAPACITY               DATE
 
         /s/ James E. Clark             Director                 November 5,
- -------------------------------------                                1997
           JAMES E. CLARK
 
        /s/ John L. Diederich           Director                 November 5,
- -------------------------------------                                1997
          JOHN L. DIEDERICH
 
        /s/ Robert S. Hillas            Director                 November 5,
- -------------------------------------                                1997
          ROBERT S. HILLAS
 
        /s/ Arthur B. Laffer            Director                 November 5,
- -------------------------------------                                1997
          ARTHUR B. LAFFER
 
         /s/ Arden E. Moore             Director                 November 5,
- -------------------------------------                                1997
           ARDEN E. MOORE
 
                                        Director
- -------------------------------------
       ALFRED E. OSBORNE, JR.
 
       /s/ J. Danforth Quayle           Director                 November 5,
- -------------------------------------                                1997
         J. DANFORTH QUAYLE
 
                                        Director
- -------------------------------------
       C. HOWARD WILKINS, JR.
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
                                                                     SEQUENTIAL
 EXHIBIT                                                                PAGE
 NUMBER                         DESCRIPTION                            NUMBER
 -------                        -----------                          ----------
 <C>     <S>                                                         <C>
   2.01  Agreement and Plan of Merger dated as of October 8, 1997
         by and among United States Filter Corporation, USF/PW
         Acquisition Corporation and Puro Water Group, Inc. (filed
         herewith; attached as Annex A to the Proxy
         Statement/Prospectus)
   2.02  Form of Stockholder Agreement dated as of October 8, 1997
         between United States Filter Corporation and certain
         stockholders of Puro Water Group, Inc., together with
         schedule (filed herewith; attached as Annex B to the
         Proxy Statement/Prospectus)
   3.01  Restated Certificate of Incorporation of United States
         Filter Corporation, as amended (incorporated by reference
         to Exhibit 3.0 to Form 10-K dated March 31, 1997 (File
         No. 1-10728))
   3.02  Restated Bylaws of United States Filter Corporation
         (incorporated by reference to Exhibit 3.1 to Form 10-K
         dated March 31, 1997 (File No. 1-10728))
   4.01  Amended and Restated Multicurrency Credit Agreement dated
         as of October 20, 1997 by and among United States Filter
         Corporation and various lenders, with BankBoston, N.A. as
         Managing Agent (filed herewith)
   5.01  Opinion of Kirkpatrick & Lockhart LLP as to the legality
         of the securities being registered (to be filed by
         amendment)
   5.02  Opinion of Lev, Berlin & Dale, P.C. (to be filed by
         amendment)
   8.01  Opinion of Kirkpatrick & Lockhart LLP as to certain tax
         matters (to be filed by amendment)
  21.01  Schedule of Subsidiaries (incorporated by reference to
         Exhibit 21.0 to Form 10-K dated March 31, 1997 (File No.
         1-10728))
  23.01  Consent of Kirkpatrick & Lockhart LLP (included in
         Exhibit 5.01)
  23.02  Consent of KPMG Peat Marwick LLP (filed herewith)
  23.03  Consent of Arthur Andersen LLP (filed herewith)
  24.01  Powers of Attorney (included on signature page of this
         registration statement)
  99.01  Form of Proxy to be distributed to the stockholders of
         Puro Water Group, Inc. (filed herewith)
</TABLE>

<PAGE>
 
                                                                    EXHIBIT 4.01


                             AMENDED AND RESTATED
                        MULTICURRENCY CREDIT AGREEMENT

                         DATED AS OF OCTOBER 20, 1997

                                 by and among

                       UNITED STATES FILTER CORPORATION
                               (the "Borrower")

                           BANKBOSTON, N.A. ("BKB")
                      DLJ CAPITAL FUNDING, INC. ("DLJ"),
             ABN AMRO BANK N.V., LOS ANGELES INTERNATIONAL BRANCH,
                          BANQUE PARIBAS ("Paribas"),
                         THE BANK OF NEW YORK ("BNY"),
        BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION ("BOA"),
               THE SUMITOMO BANK, LIMITED (LOS ANGELES BRANCH),
                          FLEET BANK, N.A. ("Fleet"),
          THE INDUSTRIAL BANK OF JAPAN, LIMITED (LOS ANGELES AGENCY),
                      BANQUE NATIONALE DE PARIS ("BNP"),
 DEUTSCHE BANK AG, NEW YORK AND/OR CAYMAN ISLANDS BRANCHES ("Deutsche Bank"),
         THE LONG-TERM CREDIT BANK OF JAPAN LTD. (LOS ANGELES AGENCY),
                   UNION BANK OF CALIFORNIA, N.A. ("Union"),
             THE SANWA BANK LIMITED, LOS ANGELES BRANCH ("Sanwa")
                       NATIONSBANK, N.A. ("NationsBank")
                          BHF-BANK AKTIENGESELLSCHAFT
                           THE SAKURA BANK, LIMITED
                               CREDITO ITALIANO
                                (the "Lenders")

                          DLJ, as Documentation Agent
                       NATIONSBANK, as Syndication Agent
                  BOA, DEUTSCHE BANK, and UNION, as Co-Agents
             BNY, FLEET, PARIBAS, BNP, and SANWA, as Lead Managers

                                      and

                            BKB, as Managing Agent


                                  Arranged By

                          BANCBOSTON SECURITIES INC.
<PAGE>
 
                               TABLE OF CONTENTS
                               -----------------
<TABLE>
     <S>                                                                                          <C>
     (S)1. DEFINITIONS; RULES OF INTERPRETATION.................................................   2
           ------------------------------------
             (S)1.1.  Definitions...............................................................   2 
                      -----------                                                                     
             (S)1.2.  Rules of Interpretation...................................................  20  
                     -----------------------  
     (S)2. THE MULTICURRENCY FACILITY...........................................................  21
           --------------------------
             (S)2.1.  Commitment to Lend........................................................  21 
                      ------------------                                                              
             (S)2.2.  Optional Reduction of Multicurrency Commitment............................  21  
                      ----------------------------------------------                                  
             (S)2.3.  Requests for Multicurrency Loans..........................................  21  
                      --------------------------------                                                
             (S)2.4.  Optional Currencies.......................................................  22 
                      -------------------                                                             
             (S)2.5.  Swing Line Loans; Settlements. ...........................................  23  
                     -----------------------------  
     (S)3. LETTERS OF CREDIT....................................................................  25
           -----------------
             (S)3.1.  Letter of Credit Issuance.................................................  25  
                      -------------------------                                                        
             (S)3.2.  Reimbursement Obligation of the Borrower..................................  26  
                      ----------------------------------------                                         
             (S)3.3.  Letter of Credit Payments.................................................  26  
                      -------------------------                                                        
             (S)3.4.  The Uniform Customs and Practice; Obligations Absolute....................  27  
                      ------------------------------------------------------                           
             (S)3.5.  Reliance by Issuing Lender................................................  28  
                      --------------------------                                                       
             (S)3.6.  Letter of Credit Fee......................................................  29  
                      --------------------                                                             
             (S)3.7.  Reimbursement Obligations of Lenders......................................  29  
                      ------------------------------------                                             
             (S)3.8.  Notice Regarding Letters of Credit........................................  29   
                     ----------------------------------                          
     (S)4. COMPETITIVE BID LOANS................................................................  30
           ---------------------
             (S)4.1.  The Competitive Bid Option................................................  30
                      --------------------------                                                   
             (S)4.2.  Competitive Bid Loan Accounts: Competitive Bid Notes......................  30
                      ----------------------------------------------------                         
             (S)4.3.  Competitive Bid Quote Request; Invitation for Competitive Bid Quotes......  31  
                      --------------------------------------------------------------------                                 
             (S)4.4.  Alternative Manner of Procedure...........................................  32     
                      -------------------------------                                                      
             (S)4.5.  Submission and Contents of Competitive Bid Quotes.........................  33      
                      -------------------------------------------------                                    
             (S)4.6.  Notice to Borrower........................................................  34      
                      ------------------                                                                   
             (S)4.7.  Acceptance and Notice by Borrower and Managing Agent......................  35       
                      ----------------------------------------------------                                        
             (S)4.8.  Allocation by Managing Agent..............................................  35  
                      ----------------------------                                                     
             (S)4.9.  Funding of Competitive Bid Loans..........................................  36  
                      --------------------------------                                                 
             (S)4.10. Funding Losses............................................................  36   
                      --------------                                                                   
             (S)4.11. Repayment of Competitive Bid Loans; Interest..............................  36   
                      --------------------------------------------                                      
     (S)5.  REVOLVING CREDIT LOANS..............................................................  36
            ----------------------                                                                  
             (S)5.1.  Commitment to Lend........................................................  36    
                      ------------------                                                                 
             (S)5.2.  Optional Reduction of Revolving Credit Commitment.........................  37    
                      -------------------------------------------------                                  
             (S)5.3.  Requests for Revolving Credit Loans.......................................  37    
                      -----------------------------------                                                
             (S)5.4.  Option to Extend the Term Out Date........................................  38    
                      ----------------------------------                                                  
     (S)6.  THE TERM LOAN.......................................................................  38
            -------------                                                                           
             (S)6.1.  Conversion of Outstanding Revolving Credit Loans Into the Term Loan.......  38
                      -------------------------------------------------------------------                                    
</TABLE> 
     
<PAGE>

                                     -ii-
 
<TABLE> 
     <S>                                                                                          <C>   
             (S)6.2.  The Term Notes............................................................  38             
                      --------------
             (S)6.3.  Scheduled Repayments......................................................  39           
                      --------------------
             (S)6.4.  Election of Eurocurrency Rate; Notice of Election.........................  39           
                      -------------------------------------------------
     (S)7.  PROVISIONS RELATING TO THE MULTICURRENCY LOANS AND REVOLVING CREDIT LOANS...........  40           
            -------------------------------------------------------------------------
             (S)7.1.  The Notes.................................................................  40           
                      ---------
             (S)7.2.  Funds for Revolving Credit Loans and Multicurrency Loans..................  41           
                      --------------------------------------------------------
             (S)7.3.  Election of Eurocurrency Rate; Notice of Election.........................  42           
                      ------------------------------------------------- 
             (S)7.4.  Facility Fee..............................................................  43           
                      ------------  
     (S)8.  PROVISIONS RELATING TO ALL LOANS....................................................  43           
            --------------------------------
             (S)8.1.  Interest on Loans.........................................................  43           
                      -----------------
             (S)8.2.  Maturity of the Loans.....................................................  44           
                      ---------------------
             (S)8.3.  Interest on Overdue Amounts...............................................  44           
                      ---------------------------
             (S)8.4.  Interest Limitation.......................................................  44           
                      -------------------
             (S)8.5.  Optional Repayments.......................................................  45           
                      -------------------   
             (S)8.6.  Mandatory Repayments......................................................  45           
                      --------------------
             (S)8.7.  Application of Repayments.................................................  46           
                      -------------------------
             (S)8.8.  Payments..................................................................  46           
                      --------
             (S)8.9.  Computations..............................................................  48           
                      ------------
             (S)8.10. Additional Costs, Etc.....................................................  49           
                      ---------------------
             (S)8.11. Capital Adequacy..........................................................  50           
                      ----------------
             (S)8.12. Eurocurrency and Competitive Bid Indemnity................................  51           
                      ------------------------------------------
             (S)8.13. Illegality; Inability to Determine Eurocurrency Rate......................  51           
                      ----------------------------------------------------   
             (S)8.14. Reasonable Efforts to Mitigate............................................  53           
                      ------------------------------
             (S)8.15. Replacement of Lenders....................................................  53           
                      ----------------------
             (S)8.16. Representations and Warranties upon Loan Request..........................  54           
                      ------------------------------------------------
             (S)8.17. Limitations on Interest Periods...........................................  55           
                      -------------------------------
     (S)9.  REPRESENTATIONS AND WARRANTIES......................................................  55           
            ------------------------------   
             (S)9.1.  Corporate Authority.......................................................  55           
                      -------------------
             (S)9.2.  Governmental Approvals....................................................  56           
                      ----------------------
             (S)9.3.  Title to Properties; Leases...............................................  56           
                      ---------------------------
             (S)9.4.  Financial Statements; Solvency............................................  56           
                      ------------------------------  
             (S)9.5.  No Material Changes, Etc..................................................  57           
                      ------------------------
             (S)9.6.  Franchises, Patents, Copyrights, Etc......................................  57           
                      ------------------------------------
             (S)9.7.  Litigation................................................................  57           
                      ----------
             (S)9.8.  No Materially Adverse Contracts, Etc......................................  57           
                      ------------------------------------
             (S)9.9.  Compliance With Other Instruments, Laws, Etc..............................  58           
                      --------------------------------------------
             (S)9.10. Tax Status................................................................  58           
                      ----------   
             (S)9.11. No Event of Default.......................................................  58           
                      -------------------
             (S)9.12. Holding Company and Investment Company Acts...............................  58           
                      -------------------------------------------
             (S)9.13. Absence of Financing Statements, Etc......................................  59           
                      ------------------------------------
             (S)9.14. Certain Transactions......................................................  59           
                      --------------------
             (S)9.15. Employee Benefit Plans....................................................  59           
                      ----------------------
</TABLE> 
<PAGE>
                                     -iii-
 
<TABLE> 
     <S>                                                                                          <C>         
             (S)9.16.  Use of Proceeds..........................................................  59           
                       ---------------
                       (S)9.16.1.  General......................................................  59           
                                   -------
                       (S)9.16.2.  Regulations U and X..........................................  59           
                                   -------------------
             (S)9.17.  Environmental Compliance.................................................  60           
                       ------------------------
             (S)9.18.  True Copies of Charter and Other Documents...............................  60           
                       ------------------------------------------  
     (S)10.  AFFIRMATIVE COVENANTS OF THE BORROWER..............................................  60           
             -------------------------------------
             (S)10.1.  Punctual Payment.........................................................  60           
                       ----------------
             (S)10.2.  Maintenance of U.S. Office...............................................  61           
                       --------------------------
             (S)10.3.  Records and Accounts.....................................................  61           
                       --------------------
             (S)10.4.  Financial Statements, Certificates and Information.......................  61           
                       --------------------------------------------------
             (S)10.5.  Corporate Existence and Conduct of Business..............................  63           
                       -------------------------------------------
             (S)10.6.  Maintenance of Properties................................................  63           
                       -------------------------
             (S)10.7.  Insurance................................................................  63           
                       ---------
             (S)10.8.  Taxes....................................................................  63           
                       ----- 
             (S)10.9.  Inspection of Properties, Books, and Contracts...........................  64           
                       ---------------------------------------------- 
             (S)10.10. Compliance with Laws, Contracts, Licenses and Permits....................  64            
                       ----------------------------------------------------- 
             (S)10.11. Further Assurances.......................................................  65           
                       ------------------  
             (S)10.12. Notice of Potential Claims or Litigation.................................  65           
                       ----------------------------------------
             (S)10.13. Environmental Indemnification............................................  65           
                       -----------------------------  
             (S)10.14. Notice of Certain Events Concerning Insurance............................  65           
                       ---------------------------------------------
             (S)10.15. Notice of Default........................................................  66           
                       -----------------
     (S)11.  CERTAIN NEGATIVE COVENANTS OF THE BORROWER.........................................  66           
             ------------------------------------------ 
             (S)11.1.  Restrictions on Indebtedness.............................................  66           
                       ----------------------------
             (S)11.2.  Restrictions on Liens....................................................  67           
                       ---------------------
             (S)11.3.  Restrictions on Investments..............................................  69           
                       ---------------------------
             (S)11.4.  Mergers, Consolidations, Sales...........................................  69           
                       ------------------------------
             (S)11.5.  Restricted Distributions and Redemptions.................................  71           
                       ----------------------------------------
             (S)11.6.  Employee Benefit Plans...................................................  71           
                       ----------------------  
             (S)11.7.  Negative Pledges.........................................................  72           
                       ----------------
     (S)12.  FINANCIAL COVENANTS................................................................  72           
             -------------------  
             (S)12.1.  Leverage Ratio...........................................................  72           
                       --------------
             (S)12.2.  Interest Coverage Ratio..................................................  73           
                       -----------------------
             (S)12.3.  Debt to Capital Ratio....................................................  73           
                       ---------------------
     (S)13.  CLOSING CONDITIONS.................................................................  73           
             ------------------ 
             (S)13.1.  Representations and Warranties...........................................  73           
                       ------------------------------
             (S)13.2.  Performance; No Default..................................................  73           
                       -----------------------
             (S)13.3.  Corporate Action.........................................................  74           
                       ---------------- 
             (S)13.4.  Loan Documents, Etc......................................................  74           
                       -------------------
             (S)13.5.  Certified Copies of Charter Documents....................................  74           
                       -------------------------------------
             (S)13.6.  Incumbency Certificate...................................................  74           
                       ----------------------
             (S)13.7.  Payment of Fees and Interest.............................................  74           
                       ----------------------------
             (S)13.8.  Financial Statements.....................................................  74           
                       --------------------
             (S)13.9.  Financial Projections....................................................  74           
                       ---------------------
</TABLE> 
<PAGE>
                                     -iv-
 
<TABLE> 
     <S>                                                                                          <C> 
             (S)13.10. Opinions of Counsel......................................................  75           
                       -------------------
     (S)14. CONDITIONS OF ALL LOANS.............................................................  75           
            -----------------------   
             (S)14.1.  Representations True.....................................................  75           
                       --------------------
             (S)14.2.  Performance; No Default or Event of Default..............................  75           
                       -------------------------------------------
             (S)14.3.  No Legal Impediment......................................................  75           
                       -------------------
             (S)14.4.  Governmental Regulation..................................................  75           
                       -----------------------
             (S)14.5.  Proceedings and Documents................................................  76           
                       -------------------------
     (S)15. EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENTS; REMEDIES...............  76           
            ---------------------------------------------------------------------
             (S)15.1.  Events of Default and Acceleration.......................................  76           
                       ----------------------------------
             (S)15.2.  Termination of Commitments...............................................  79           
                       --------------------------
             (S)15.3.  Remedies.................................................................  79           
                       --------
     (S)16. SETOFF..............................................................................  80           
            ------
     (S)17. EXPENSES............................................................................  81           
            --------   
     (S)18. THE AGENTS..........................................................................  81           
            ----------   
             (S)18.1.  Authorization............................................................  81           
                       -------------
             (S)18.2.  Employees and Agents.....................................................  81           
                       --------------------  
             (S)18.3.  No Liability.............................................................  82           
                       ------------  
             (S)18.4.  No Representations.......................................................  82           
                       ------------------                 
             (S)18.5.  Payments.................................................................  82           
                       --------
             (S)18.6.  Holders of Notes.........................................................  84           
                       ----------------
             (S)18.7.  Indemnity................................................................  84           
                       ---------
             (S)18.8.  Agents as Lenders........................................................  84            
                       -----------------  
             (S)18.9.  Resignation..............................................................  84   
                       ----------- 
             (S)18.10.  Certain Intercreditor Provisions........................................  85 
                        --------------------------------
     (S)19. INDEMNIFICATION.....................................................................  86  
            --------------- 
     (S)20. TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION.......................................  86  
            ---------------------------------------------
             (S)20.1.  Sharing of Information with Section 20 Subsidiary........................  87 
                       ------------------------------------------------- 
             (S)20.2.  Confidentiality..........................................................  87
                       ---------------
             (S)20.3.  Prior Notification.......................................................  87
                       ------------------
             (S)20.4.  Other....................................................................  88 
                       -----
     (S)21. SURVIVAL OF COVENANTS, ETC..........................................................  88 
            --------------------------
     (S)22. ASSIGNMENT AND PARTICIPATION........................................................  88  
            ----------------------------
             (S)22.1.  Conditions to Assignment by Lenders......................................  88         
                       -----------------------------------
             (S)22.2.  Certain Representations and Warranties; Limitations; Covenants...........  89                
                       -------------------------------------------------------------- 
             (S)22.3.  Register.................................................................  90                
                       --------
             (S)22.4.  New Notes................................................................  91                
                       ---------  
             (S)22.5.  Participations...........................................................  91                
                       --------------  
             (S)22.6.  Disclosure...............................................................  91                
                       ----------
             (S)22.7.  Assignee or Participant Affiliated with the Borrower.....................  92                
                       ----------------------------------------------------  
             (S)22.8.  Miscellaneous Assignment Provisions......................................  92                 
                       -----------------------------------
     (S)23. PARTIES IN INTEREST.................................................................  92
            -------------------
</TABLE> 
<PAGE>

                                     -v-
 
<TABLE> 
     <S>                                                                                          <C>                              
     (S)24.  NOTICES, ETC.......................................................................  93
             ------------
              (S)24.1.  General.................................................................  93
                        -------       
              (S)24.2.  Deemed Notice...........................................................  93
                        -------------
     (S)25.  MISCELLANEOUS......................................................................  94
             -------------
     (S)26.  ENTIRE AGREEMENT, ETC..............................................................  94
             ---------------------
     (S)27.  WAIVER OF JURY TRIAL...............................................................  94
             --------------------  
     (S)28.  SEVERABILITY.......................................................................  95
             ------------ 
     (S)29.  GOVERNING LAW......................................................................  95
             ------------- 
     (S)30.  CONSENTS, AMENDMENTS, WAIVERS, ETC.................................................  95
             ----------------------------------  
</TABLE>
<PAGE>
 
                                    Exhibits
                                    --------


Exhibit A   Form of Multicurrency Note
Exhibit B   Form of Multicurrency Loan Request
Exhibit C   Form of Letter of Credit Request
Exhibit D   Form of Revolving Credit Note
Exhibit E   Form of Revolving Credit Loan Request
Exhibit F   Form of Swing Line Note
Exhibit G   Form of Competitive Bid Note
Exhibit H   Form of Competitive Bid Quote Request
Exhibit I   Form of Invitation for Competitive Bid Quotes
Exhibit J   Form of Competitive Bid Quote
Exhibit K   Form of Notice of Acceptance/Rejection of
            Competitive Bid Quote(s)
Exhibit L   Form of Term Note
Exhibit M   Form of Compliance Certificate
Exhibit N   Form of Backlog Report
Exhibit O   Form of Assignment and Acceptance

                                   Schedules
                                   ---------

Schedule 1        Unrestricted Subsidiaries
Schedule 2        Banks; Commitment Percentages; Addresses
Schedule 3.1      Existing Letters of Credit
Schedule 10.7     Insurance
Schedule 11.1(b)  Existing Indebtedness
Schedule 11.2(f)  Existing Liens
<PAGE>
 
                             AMENDED AND RESTATED
                             --------------------

                        MULTICURRENCY CREDIT AGREEMENT
                        ------------------------------

                                        

          This AMENDED AND RESTATED MULTICURRENCY CREDIT AGREEMENT is made as of
October 20, 1997 among UNITED STATES FILTER CORPORATION, a Delaware corporation
with its chief executive office at 40-004 Cook Street, Palm Desert, California
92211 (the "Borrower"), BANKBOSTON, N.A., f/k/a The First National Bank of
Boston, a national banking association having its principal place of business at
100 Federal Street, Boston, Massachusetts 02110 ("BKB"), DLJ CAPITAL FUNDING,
INC. ("DLJ"), ABN AMRO BANK N.V., LOS ANGELES INTERNATIONAL BRANCH ("ABN"),
BANQUE PARIBAS ("Paribas"), THE BANK OF NEW YORK ("BNY"), BANK OF AMERICA
NATIONAL TRUST AND SAVINGS ASSOCIATION, successor by merger to Bank of America
Illinois ("BOA"), THE SUMITOMO BANK, LIMITED (LOS ANGELES BRANCH) ("Sumitomo"),
FLEET BANK, N.A. ("Fleet"), NATIONSBANK, N.A. ("NationsBank"), THE INDUSTRIAL
BANK OF JAPAN, LIMITED (LOS ANGELES AGENCY) ("IBJ"), BANQUE NATIONALE DE PARIS
("BNP"), DEUTSCHE BANK AG, NEW YORK AND/OR CAYMAN ISLANDS BRANCHES ("Deutsche
Bank"), THE LONG-TERM CREDIT BANK OF JAPAN LTD. (LOS ANGELES AGENCY) ("LTCB"),
UNION BANK OF CALIFORNIA, N.A., ("Union"), THE SANWA BANK LIMITED, LOS ANGELES
BRANCH ("Sanwa"), BHF-BANK AKTIENGESELLSCHAFT ("BHF"), THE SAKURA BANK, LIMITED
("Sakura"), and CREDITO ITALIANO ("Credito Italiano") (such financial
institutions and any financial institutions which become parties hereto in
accordance with (S)22 hereof are collectively referred to herein as the
"Lenders" and individually as a "Lender"), BKB as administrative and managing
agent for the Lenders (in such capacity, the "Managing Agent"), DLJ as
documentation agent (the "Documentation Agent"), NATIONSBANK as syndication
agent (the "Syndication Agent"), BOA, DEUTSCHE BANK, and UNION as co-agents (the
"Co-Agents" and, collectively with the Managing Agent, the Documentation Agent,
and the Syndication Agent, the "Agents"), and BNY, FLEET, PARIBAS, BNP, and
SANWA as lead managers (the "Lead Managers").

                                   RECITALS
                                   --------

          WHEREAS, pursuant to that certain Amended and Restated Revolving
Credit and Term Loan Agreement dated as of December 2, 1996 (as amended and in
effect as of the date hereof, the "Prior Credit Agreement"), among the Borrower,
certain Subsidiaries of the Borrower, the
<PAGE>
 
                                      -2-

financial institutions party thereto (collectively, the "Prior Lenders"), DLJ as
Documentation Agent, ABN as Co-Agent, and BKB as Managing Agent, the Prior
Lenders have made loans to, and certain of the Prior Lenders have issued letters
of credit for the account of, the Borrower (the "Existing Loans" and the
"Existing Letters of Credit," respectively); and

          WHEREAS, the Borrower, the Lenders and the Agents desire to amend and
restate the Prior Credit Agreement to, among other things, provide additional
financing to the Borrower on the terms and conditions set forth herein and to
replace the Prior Credit Agreement;

          NOW THEREFORE, subject to the satisfaction of the conditions set forth
in (S)13 hereof, the Borrower, the Lenders, and the Agents hereby agree that the
Prior Credit Agreement is hereby amended and restated in its entirety as set
forth herein.

          (S)1.    DEFINITIONS; RULES OF INTERPRETATION.
                   ------------------------------------

          (S)1.1.  DEFINITIONS. The following terms shall have the meanings set
                   -----------
forth in this (S)1 or elsewhere in the provisions of this Agreement referred to
below:

          ABN.  See Preamble.
          ---                

          Absolute Competitive Bid Loan(s). Competitive Bid Loans bearing
          -----------------------------
interest at the Competitive Bid Rate.

 
          Accountants. See (S)9.4(a).
          -----------
                    
          Affected Lender. See (S)8.15.
          ---------------
 
          Affiliate. Any Person that would be considered to be an affiliate of
          ---------                                                            
the Borrower under Rule 144(a) of the Rules and Regulations of the United States
Securities and Exchange Commission, as in effect on the date hereof, if the
Borrower were issuing securities.
 
          Agents. See Preamble.
          ------

          Agreement.  This Amended and Restated Multicurrency Credit Agreement,
          ---------                                                            
including the Exhibits and Schedules hereto, as amended and in effect from time
to time.
<PAGE>
 
                                      -3-

          Applicable Facility Rate. The applicable rate per annum with respect
          ------------------------
to the Facility Fee as set forth in the Pricing Table.

          Applicable Laws. See (S)10.10.
          ---------------
                         
          Applicable L/C Rate. The applicable rate per annum on the Maximum
          -------------------
Drawing Amount as set forth in the Pricing Table.

          Applicable Margin. The applicable interest rate margin per annum as
          -----------------
set forth in the Pricing Table.

          Arranger. BancBoston Securities Inc.
          --------

          Assignment and Acceptance. See (S)22.1.
          -------------------------
 
          Authorized Officer. The President, Secretary, Treasurer, or any Vice
          ------------------
President of the Borrower.

          Authorized Signatory.  Any Person who has been authorized to make
          --------------------                                             
requests for Loans on behalf of the Borrower, as evidenced by a certificate of
an Authorized Officer.
 
          Balance Sheet Date. March 31, 1997.
          ------------------

          Base Rate.  The higher of (a) the rate per annum (rounded upward, if
          ---------
necessary, to the next higher 1/100 of 1%) equal to the annual rate of interest
announced from time to time by the Managing Agent at the Managing Agent's Head
Office as its "Base Rate" or (b) one-half percent (1/2%) above the Federal Funds
Effective Rate.
 
          Base Rate Advances.  Loans, including all or any portion of the Term
          ------------------                                                  
Loan, denominated in Dollars and bearing interest by reference to the Base Rate.
 
          BKB.  See Preamble.
          ---                

          BNP.  See Preamble.
          ---                
 
          BNY.  See Preamble.
          ---                
 
          BOA.  See Preamble.
          ---                

          Borrower.  See Preamble.
          --------                
<PAGE>
 
                                      -4-

          Business Day.  Any day on which commercial banking institutions in
          ------------                                                      
Boston, Massachusetts, New York, New York, and in Los Angeles, California are
open for the transaction of banking business.
 
          Capital Assets.  Fixed assets, both tangible (such as land, buildings,
          --------------                                                        
fixtures, machinery and equipment) and intangible (such as patents, copyrights,
trademarks, franchises and goodwill) that would be required to be capitalized
and shown on the balance sheet of any Person in accordance with GAAP (excluding
any Capital Assets associated with a distinct revenue stream from a customer
contract); provided that Capital Assets shall not include any item customarily
charged directly to expense or depreciated over a useful life of twelve (12)
months or less in accordance with GAAP.
 
          Capital Expenditures. Amounts paid or indebtedness incurred by any
          --------------------
Person in connection with the purchase or lease by such Person of a Capital
Asset.

          Capitalized Leases.  Leases under which the Borrower or any of its
          ------------------                                                
Subsidiaries is the lessee or obligor, the discounted future rental payment
obligations under which are required to be capitalized on the balance sheet of
the lessee or obligor in accordance with GAAP.

          Certified. With respect to the financial statements of any Person,
          ---------
such statements as audited by a firm of independent auditors, whose report
expresses the opinion, without qualification, that such financial statements
present fairly the financial position and/or results of operations of such
Person, as of and on the date therein specified.

          CFO.  See (S)10.4(b).
          ---                  
 
          Change of Control.  (a) The acquisition by any Person (including any
          -----------------                                                   
syndicate or group deemed to be a "person" under Section 13(d)(3) or 14(d)(2) of
the Securities Exchange Act of 1934, as amended (the "Exchange Act") or any
successor provision to either of the foregoing) of beneficial ownership,
directly or indirectly, of shares of capital stock of the Borrower entitling
such Person to exercise more than 50% of the total voting power of all voting
shares of the Borrower; or (b) any consolidation of the Borrower with, or merger
of the Borrower into, any other Person, any merger of another Person into the
Borrower, or any sale or transfer of all or substantially all of the assets of
the Borrower to another Person other than (i) a consolidation or merger which
does not result in any reclassification, conversion, exchange or cancellation of
outstanding shares of capital stock other than shares of capital stock owned by
any of the parties to the consolidation or merger, or (ii) a merger which is
effected solely to change the jurisdiction of
<PAGE>
 
                                      -5-

incorporation of the Borrower or (iii) any consolidation with or merger of the
Borrower into a Subsidiary of the Borrower with the prior written consent of the
Lenders, or any sale or transfer by the Borrower with the written consent of the
Lenders of all or substantially all of its assets to one or more of its wholly
owned Subsidiaries in any one transaction or a series of transactions, provided
that in each case set forth in clause (b) hereof the resulting corporation or
each such Subsidiary assumes or guarantees the obligations of the Borrower under
this Agreement, and the consolidated net worth of the surviving or acquiring
corporation in any such consolidation, merger or sale of assets immediately
after the consummation of such transaction equals or exceeds the consolidated
net worth of the Borrower immediately prior to such transaction; or (c) any
Change of Control as defined in the Subordinated Indenture (which definition is
incorporated herein by reference as if expressly set forth herein).

          Closing Date.  The date on which the conditions precedent set forth in
          ------------                                                          
(S)13 hereof are satisfied.
 
          Co-Agents.  See Preamble.
          ---------                
 
          Code. The United States Internal Revenue Code of 1986, as amended and
          ----
in effect from time to time.

          Commitment. With respect to each Lender, its Commitment Percentage of
          ----------
the Multicurrency Commitment plus its Commitment Percentage of the Revolving
Credit Commitment.

          Commitment Percentage. With respect to each Lender, the percentage set
          ---------------------
forth on SCHEDULE 2, as such percentage may be adjusted from time to time in
accordance with (S)22.

          Competitive Bid Loan(s). A borrowing hereunder consisting of one or
          -----------------------
more loans made by any of the participating Lenders whose offer to make a
Competitive Bid Loan as part of such borrowing has been accepted by the Borrower
under the auction bidding procedure described in (S)4 hereof.

          Competitive Bid Loan Accounts.  See (S)4.2(a).
          -----------------------------                 

          Competitive Bid Margin.  See (S)4.5(b)(iv).
          ----------------------

          Competitive Bid Notes.  See (S)4.2(b).
          ---------------------                 

          Competitive Bid Quote. An offer by a Lender to make a Competitive Bid
          ---------------------
Loan in accordance with (S)4.5 hereof.
<PAGE>
 
                                      -6-

          Competitive Bid Quote Request.  See (S)4.3.
          -----------------------------              

          Competitive Bid Rate.  See (S)4.5(b)(v).
          --------------------                    

          Compliance Certificate.  See (S)10.4(c).
          ----------------------
 
          Consolidated or consolidated. With reference to any term defined
          ----------------------------
herein, shall mean that term as applied to the accounts of the Borrower and its
Subsidiaries, consolidated in accordance with GAAP, after eliminating all
intercompany items.

          Consolidated Earnings Before Interest and Taxes or EBIT. For any
          -------------------------------------------------------
period, the Consolidated Net Income (or Deficit) of the Borrower and its
Subsidiaries determined in accordance with GAAP, plus (a) interest expense, (b)
                                                 ---- 
income taxes and (c) extraordinary non-cash losses for such period, to the
extent that each was deducted in determining Consolidated Net Income (or
Deficit), and minus (d) extraordinary gains for such period and (e) that portion
              -----
of EBIT which is derived from Unrestricted Subsidiaries other than cash
dividends received by the Borrower from Unrestricted Subsidiaries at least 90
days prior to the date of determination of EBIT, all as determined in accordance
with GAAP.
 
          Consolidated Earnings Before Interest, Taxes, Depreciation, and
          ---------------------------------------------------------------
Amortization, or EBITDA.  For any period, EBIT, plus (a) depreciation and (b)
- -----------------------                         ----                         
amortization for such period, as determined in accordance with GAAP, to the
extent that each was deducted in determining Consolidated Net Income (or
Deficit) and does not relate to Unrestricted Subsidiaries, provided that, for
purposes of calculating the Leverage Ratio, the portion of EBITDA derived from
companies (other than Unrestricted Subsidiaries) acquired since the date of the
most recent financial statements delivered to the Lenders pursuant to (S)10.4(a)
hereof shall be included in the calculation of EBITDA only if the financial
statements of such acquired entities have been audited for the period sought to
be included by an independent accounting firm satisfactory to the Managing Agent
or the Majority Lenders consent in writing to such inclusion.
 
          Consolidated Net Income (or Deficit) or Net Income (or Deficit).  The
          ---------------------------------------------------------------
consolidated net income (or deficit) of the Borrower and its Subsidiaries, or
the net income or deficit of the Borrower on an individual basis, determined in
accordance with GAAP.
<PAGE>
 
                                      -7-

          Consolidated Tangible Assets. Consolidated Total Assets less the sum
          ----------------------------
of:

               (a)  the total book value of all assets of the Borrower and its
          Subsidiaries properly classified as intangible assets under GAAP,
          including such items as goodwill, the purchase price of acquired
          assets in excess of the fair market value thereof, trademarks, trade
          names, service marks, customer lists, brand names, copyrights, patents
          and licenses, and rights with respect to the foregoing; plus

               (b)  all amounts representing any write-up in the book value of
          any assets of the Borrower or its Subsidiaries resulting from a
          revaluation thereof subsequent to the Balance Sheet Date.

          Consolidated Total Assets. All assets of the Borrower and its
          -------------------------
Subsidiaries determined on a consolidated basis in accordance with GAAP.

          Consolidated Total Interest Expense. For any period, the aggregate
          -----------------------------------
amount of interest required to be paid or accrued by the Borrower and its
Subsidiaries (other than Unrestricted Subsidiaries) during such period on all
Indebtedness of the Borrower and such Subsidiaries outstanding during all or any
part of such period, whether such interest was or is required to be reflected as
an item of expense or capitalized, including commitment fees, agency fees,
facility fees, balance deficiency fees and similar fees or expenses in
connection with the borrowing of money, all as determined in accordance with
GAAP.

          Default.  See (S)15.1.
          -------               
 
          Deutsche Bank.  See Preamble.
          -------------
 
          Disposal.  See "Release."
          --------                 

          Distribution. The declaration or payment of any dividend or
          ------------
distribution on or in respect of any shares of any class of capital stock, any
partnership interests or any membership interests of any Person, other than
dividends or other distributions payable solely in shares of common stock,
partnership interests or membership units of such Person, as the case may be;
the purchase, redemption, or other retirement of any shares of any class of
capital stock, partnership interests or membership units of such Person,
directly or indirectly through a Subsidiary or otherwise; the return of equity
capital by any Person to its shareholders, partners or members as such; or any
other distribution on or in respect of any shares of any class of capital stock,
partnership interest or membership unit of such Person.
<PAGE>
 
                                      -8-

          DLJ.  See Preamble.
          ---                
 
          Documentation Agent.  See Preamble.
          -------------------                
 
          Dollar Equivalent. With respect to any amounts denominated in a
          -----------------
currency other than Dollars, the amount (as conclusively ascertained by the
Managing Agent absent manifest error) in Dollars which is or could be purchased
by the Managing Agent (in accordance with its normal banking practices) with
such amounts denominated in such other currency in the Nassau foreign currency
deposits market for delivery on such date at the spot rate of exchange, at or
about 11:00 a.m., local time at the Nassau Branch, on the date of determination.
 
          Dollars or $. Dollars in lawful currency of the United States of
          ------------
 America.
 
          Drawdown Date.  The date on which any Loan is made or is to be made.
          -------------

          EBIT. See definition for Consolidated Earnings Before Interest and
          ----
Taxes.

          EBITDA. See definition for Consolidated Earnings Before Interest,
          ------
Taxes, Depreciation, and Amortization.

          Eligible Assignee. Any of (i) a commercial bank, insurance company, or
          -----------------
finance company organized under the laws of the United States, or any State
thereof or the District of Columbia, and having total assets in excess of
$1,000,000,000; (ii) a savings and loan association or savings bank organized
under the laws of the United States, or any State thereof or the District of
Columbia, and having a net worth of at least $100,000,000, calculated in
accordance with GAAP; (iii) a commercial bank organized under the laws of any
other country which is a member of the Organization for Economic Cooperation and
Development (the "OECD"), or a political subdivision of any such country, and
having total assets in excess of $1,000,000,000, provided that such bank is
acting through a branch or agency located in the Cayman Islands, the country in
which it is organized, or another country which is also a member of the OECD;
(iv) the central bank of any country which is a member of the OECD; and (v) if,
but only if, any Event of Default has occurred and is continuing, any other
bank, insurance company, commercial finance company or other financial
institution approved by the Managing Agent, such approval not to be unreasonably
withheld.
<PAGE>
 
                                      -9-

          Employee Benefit Plan. Any employee benefit plan within the meaning of
          ---------------------
(S)3(3) of ERISA maintained or contributed to by the Borrower or any ERISA
Affiliate, other than a Guaranteed Pension Plan or a Multiemployer Plan.

          Environmental Laws. All applicable federal, state, provincial,
          ------------------
municipal, local and foreign laws, principles of common law or civil law,
regulations, by-laws, guidelines and codes, as such laws, principles,
regulations, by-laws and guidelines and codes may be amended from time to time,
as well as orders, decrees, judgments, seizures or injunctions issued,
promulgated, approved or entered thereunder relating to pollution, protection of
the environment, or protection of the public from pollution or employee health
and safety, including, but not limited to the Release or threatened Release of
Hazardous Substances into the environment or otherwise relating to the presence,
manufacture, processing, distribution, use, treatment, storage, disposal,
transport or handling of Hazardous Substances.

          EPA.  See (S)9.17(b).
          ---                  

          Equity Conversion Date. The date on which the Subordinated Indenture
          ----------------------
is converted into common equity.

          ERISA. The Employee Retirement Income Security Act of 1974, as amended
          -----
and in effect from time to time.

          ERISA Affiliate. Any Person which is treated as a single employer with
          ---------------
the Borrower under (S)414(b) and (c) of the Code.

          ERISA Reportable Event. A reportable event with respect to a
          ----------------------
Guaranteed Pension Plan within the meaning of (S)4043 of ERISA and the
regulations promulgated thereunder.

          Eurocurrency Advances. Loans, including all or any portion of the Term
          ---------------------
Loan, bearing interest calculated by reference to the Eurocurrency Rate.

          Eurocurrency Business Day. Any Business Day on which dealings in
          -------------------------
foreign currency and exchange are carried on among banks in Boston,
Massachusetts, Nassau, The Bahamas, Paris, France and London, England.
 
          Eurocurrency Interest Determination Date. For any Interest Period, the
          ----------------------------------------
date two (2) Eurocurrency Business Days prior to the first day of such Interest
Period.
<PAGE>
 
                                      -10-

          Eurocurrency Lending Office.  Initially, the office of each Lender set
          ---------------------------                                           
forth in SCHEDULE 2; thereafter, upon notice to the Managing Agent, such other
office of such Lender that shall be making or maintaining Eurocurrency Advances.
 
          Eurocurrency Offered Rate. The rate per annum at which deposits of
          -------------------------
Dollars or Optional Currency, as applicable, are offered to the Managing Agent
by prime banks in whatever eurocurrency interbank market may be selected by the
Managing Agent, in its sole discretion, acting in good faith, at or about 11:00
a.m. local time in such interbank market, on the Eurocurrency Interest
Determination Date for a period equal to the period of such Interest Period in
an amount substantially equal to the principal amount requested to be loaned at
or converted to a rate based on the Eurocurrency Offered Rate.
 
          Eurocurrency Rate.
          -----------------
 
               (a)  With respect to Revolving Credit Loans, Competitive Bid
          Loans, Swing Line Loans, the Term Loan, and any Multicurrency Loans
          denominated in Dollars, the rate per annum, rounded upwards to the
          nearest 1/16 of 1%, determined by the Managing Agent with respect to
          an Interest Period, in accordance with the following formula:
          
               Eurocurrency Rate = Eurocurrency Offered Rate
                                   -------------------------
                                        1-Reserve Rate
 
               (b)  With respect to Multicurrency Loans denominated in an
          Optional Currency, the Eurocurrency Rate plus the cost to the Lenders,
          expressed as a percentage, of complying with any law as described in
          (S)8.10 hereof.
     
          Event of Default.  See (S)15.1.
          ----------------
 
          Existing Letters of Credit.  See Recitals.
          --------------------------                
 
          Existing Loans.  See Recitals.
          --------------                
 
          Facility Fee.  See (S)7.4.
          ------------             

          Federal Funds Effective Rate. The overnight federal funds effective
          ----------------------------
rate, as published by the Board of Governors of the Federal Reserve System as in
effect from time to time.
<PAGE>
 
                                      -11-

          Fleet.  See Preamble.
          -----                

          Funded Debt.  Consolidated Indebtedness of the Borrower and its
          -----------                                                    
Subsidiaries (other than Unrestricted Subsidiaries) for borrowed money,
including (without duplication) guarantees of such debt, recorded on the
Consolidated balance sheet of the Borrower and its Subsidiaries, and including
(without duplication) the amount of any such Indebtedness for Capitalized Leases
which corresponds to principal and all contingent Reimbursement Obligations with
respect to outstanding letters of credit (including the Letters of Credit).

          GAAP.  (i) When used in general, GAAP means principles which are (1)
          ----                                                                
consistent with the principles promulgated or adopted by the Financial
Accounting Standards Board and its predecessors or successors, in effect for the
fiscal year ended on the Balance Sheet Date and (2) such that a certified public
accountant would, insofar as the use of accounting principles is pertinent, be
in a position to deliver an unqualified opinion as to financial statements in
which such principles have been properly applied; and (ii) when used with
reference to the Borrower and its Subsidiaries, such principles shall include
(to the extent consistent with such principles) the accounting practice of the
Borrower and its Subsidiaries, reflected in their financial statements for the
year ended on the Balance Sheet Date.
 
          Guaranteed Pension Plan. Any pension benefit plan within the meaning
          -----------------------
of (S)3(2) of ERISA maintained or contributed to by the Borrower or any ERISA
Affiliate the benefits of which are guaranteed on termination in full or in part
by the PBGC pursuant to Title IV of ERISA, other than a Multiemployer Plan.

          Hazardous Substances. Any waste, contaminant, pollutant, hazardous
          --------------------
substance, toxic substance, hazardous waste, special waste, industrial substance
or waste, radioactive materials, petroleum or petroleum-derived substance or
waste, or any constituent or combination of any such substance or waste, which
substance, contaminant, pollutant or material or waste is or shall hereafter
become regulated under, governed by, or defined by any Environmental Law.
 
          Indebtedness. Collectively without duplication, whether classified as
          ------------                                                          
Indebtedness, an Investment or otherwise on the obligor's balance sheet, (a) all
indebtedness for borrowed money, (b) all obligations for the deferred purchase
price of property or services (other than trade payables not overdue by more
than ninety (90) days incurred in the ordinary course of business), (c) all
obligations evidenced by notes, bonds, debentures or other similar debt
instruments, (d) all obligations created or arising under any conditional
<PAGE>
 
                                      -12-

sale or other title retention agreement with respect to property acquired (even
though the rights and remedies of the seller or lender under such agreement in
the event of default are limited to repossession or sale of such property), (e)
all obligations, liabilities and indebtedness under Capitalized Leases, (f) all
obligations, liabilities or indebtedness (contingent or otherwise) under surety,
performance bonds or any other bonding arrangements, (g) all Indebtedness of
others referred to in clauses (a) through (f) above which is guaranteed, or in
effect guaranteed, directly or indirectly in any manner, including through an
agreement (A) to pay or purchase such Indebtedness or to advance or supply funds
for the payment or purchase of such Indebtedness, (B) to purchase, sell or lease
(as lessee or lessor) property, or to purchase or sell services, primarily for
the purpose of enabling any Person to make payment of such Indebtedness or to
assure the holder of such Indebtedness against loss, (C) to supply funds to or
in any other manner invest in any Person (including any agreement to pay for
property or services irrespective of whether such property is received or such
services are rendered) or (D) otherwise to assure any Person against loss, (h)
all Indebtedness referred to in clauses (a) through (g) above secured or
supported by (or for which the holder of such Indebtedness has an existing
right, contingent or otherwise, to be secured or supported by) any lien or
encumbrance on (or other right of recourse to or against) property (including,
without limitation, accounts and contract rights), even though the owner of the
property has not assumed or become liable, contractually or otherwise, for the
payment of such Indebtedness, and (i) the contingent reimbursement obligations
with respect to any outstanding letters of credit; provided, however, that
Indebtedness shall not include any guaranty, suretyship or indemnification
obligations in connection with the performance of services for customers in the
ordinary course of business.

          Ineligible Securities. Securities which may not be underwritten or
          ---------------------
dealt in by member banks of the Federal Reserve System under Section 16 of the
Banking Act of 1993 (12 U.S.C. (S)24, Seventh), as amended.

          Interest Coverage Ratio.  The ratio described in (S)12.2.
          -----------------------                                  

          Interest Period.  With respect to each portion of a Loan, subject to
          ---------------
(S)8.9, (a) initially, the period commencing on the Drawdown Date of such Loan
and ending on the day specified below or the last day of one of the periods set
forth below, as selected by the Borrower in accordance with this Agreement (i)
for any Base Rate Loan or Swing Line Loan, the last day of the fiscal quarter;
(ii) for any Eurocurrency Loan, 1, 2, 3, or 6 months; (iii) for any Absolute
Competitive Bid Loan, from 7 through 180 days; and (iv) for any LIBOR
Competitive Bid Loan, 1, 2, 3, 4, 5, or 6 months; and (b) thereafter, each
period commencing on the last day of the next preceding
<PAGE>
 
                                      -13-

Interest Period applicable to such Loan and ending on the day specified above or
the last day of one of the periods set forth above, as selected by the Borrower
in accordance with this Agreement, provided that no Interest Period shall extend
                                   -------- ----
beyond the Maturity Date, and no Interest Period with respect to Revolving
Credit Loans shall extend beyond the Term Out Date.

          Investments.  All cash expenditures made and all liabilities incurred
          -----------                                                          
(contingently or otherwise) for the acquisition of stock or other ownership
interests in, all or a substantial portion of all of the assets of, or
Indebtedness of, or for loans, advances, capital contributions or transfers of
property to, or in respect of any guaranties (or other commitments as described
under Indebtedness), or obligations of, any Person.  In determining the
aggregate amount of Investments outstanding at any particular time, (i) the
amount of any Investment represented by a guaranty shall be taken at not less
than the principal amount of the obligations guaranteed and still outstanding;
(ii) there shall be included as an Investment all interest accrued with respect
to Indebtedness constituting an Investment unless and until such interest is
paid, (iii) there shall be deducted in respect of each such Investment any
amount received as a return of capital (but only by repurchase, redemption,
retirement, repayment, liquidating dividend or liquidating distribution); (iv)
there shall not be deducted in respect of any Investment any amounts received as
earnings on such Investment, whether as dividends, interest or otherwise, except
that accrued interest included as provided in the foregoing clause (ii) may be
deducted when paid; and (v) there shall not be deducted from the aggregate
amount of Investments any decrease in the value thereof.
 
          Invitation for Competitive Bid Quotes.  See (S)4.3(b).
          -------------------------------------                 
 
          Issuance Fee.  See (S)3.6.
          ------------              
 
          Issuing Lender.  The Lender(s) issuing Letters of Credit, which shall
          --------------                                                       
initially be BKB or any of its Affiliates, and such other Lenders as are agreed
to be Issuing Lenders by the Borrower and the Managing Agent.
 
          Lead Managers.  See Preamble.
          -------------                
 
          Lenders.  See Preamble.
          -------                
 
          Letters of Credit.  Letters of Credit issued or to be issued by the
          -----------------                                                  
Issuing Lender in accordance with (S)3 hereof for the account of the Borrower.
 
          Letter of Credit Applications.  Letter of Credit Applications in such
          -----------------------------                                        
form as may be agreed upon by the Borrower and the Issuing Lender from
<PAGE>
 
                                      -14-

time to time which are entered into pursuant to (S)3 hereof as such Letter of
Credit Applications are amended, varied or supplemented from time to time.
 
          Letter of Credit Participation.  See (S)3.7.
          ------------------------------              
 
          Letter of Credit Fee.  See (S)3.6.
          --------------------              
 
          Letter of Credit Request.  See (S)3.1.
          ------------------------              
 
          Leverage Ratio.  The ratio described in (S)12.1.
          --------------                                  

          LIBOR Competitive Bid Loan(s).  Competitive Bid Loan(s) bearing
          -----------------------------                                  
interest at the applicable LIBOR rate plus or minus, as the case may be, the
Competitive Bid Margin.

          LIBOR Rate.  For any Interest Period with respect to a LIBOR
          ----------                                                  
Competitive Bid Loan, (a) the rate of interest equal to the rate determined by
the Managing Agent at which Dollar deposits for such Interest Period are offered
based on information presented on Telerate Page 3750 as of 11:00 a.m. (London
time) two (2) Eurocurrency Business Days prior to the first day of such Interest
Period, or (b) if such rate is not shown at such place, the rate of interest
equal to (i) the arithmetic average of the rates per annum for each Reference
Bank at which such Reference Bank's Eurocurrency Lending Office is offered
Dollar deposits two Eurocurrency Business Days prior to the beginning of such
Interest Period in the interbank eurocurrency market where the eurocurrency
operations of such Eurocurrency Lending Office are customarily conducted, for
delivery on the first day of such Interest Period for the number of days
comprised therein and in an amount comparable to the amount of the Eurocurrency
Advance of such Reference Bank to which such Interest Period applies, divided by
                                                                      ------- --
(ii) a number equal to 1.00 minus the Eurocurrency Reserve Rate, if applicable
(rounded upwards to the nearest 1/16 of one percent).

          Loans.  Collectively, the Multicurrency Loans, the Revolving Credit
          -----                                                              
Loans, the Swing Line Loans, the Competitive Bid Loans, and the Term Loan made
by the Lenders to the Borrower pursuant to this Agreement.
 
          Loan Documents.  Collectively, this Agreement, the Notes, and the
          --------------                                                   
Letter of Credit Applications, as each may be amended, modified, or restated
from time to time.
 
          Majority Lenders.  Subject to adjustment as set forth in (S)18.10
          ----------------                                                 
hereof, as of any date, the Lenders which in the aggregate hold fifty-one
percent (51%) of the sum of the Total Commitment plus, after the Term Out Date,
<PAGE>
 
                                      -15-

the outstanding principal amount of the Term Loan, and, if the Total Commitment
has been reduced to zero, the Lenders holding at least fifty-one percent (51%)
of the sum of (a) the outstanding principal amount of the Loans plus (b) the
                                                                ----        
Maximum Drawing Amount on such date (calculating all amounts denominated in
Optional Currencies at their Dollar Equivalent).
 
          Managing Agent.  See Preamble.
          --------------                
 
          Managing Agent's Head Office.  The head office of the Managing Agent
          ----------------------------                                        
located at 100 Federal Street, Boston, Massachusetts 02110.
 
          Material Subsidiary. Any Subsidiary with annual revenue in excess of
          -------------------
$50,000,000.

          Maturity Date.  October 20, 2002.
          -------------                    
 
          Maximum Drawing Amount.  The maximum aggregate amount (calculating all
          ----------------------                                                
amounts denominated in any Optional Currency at their Dollar Equivalent) from
time to time that the beneficiaries may draw under outstanding Letters of
Credit.
 
          Memtec Acquisition.  See (S)11.4.
          ------------------               
 
          Multicurrency Commitment.  $600,000,000, or the Dollar Equivalent
          ------------------------                                         
thereof in the Optional Currencies, as such amount may be reduced pursuant to
(S)2.2 hereof, or, if such Multicurrency Commitment is terminated pursuant to
(S)2.2 or (S)15.2 hereof, zero.
 
          Multicurrency Loan Request.  See (S)2.3.
          --------------------------              
 
          Multicurrency Loans.  Loans made by the Lenders to the Borrower
          -------------------                                            
pursuant to (S)2.1 hereof.
 
          Multicurrency Notes.  See (S)7.1.
          -------------------              
 
          Multiemployer Plan.  Any multiemployer plan within the meaning of
          ------------------                                               
(S)3(37) of ERISA maintained or contributed to by the Borrower or any ERISA
Affiliate.
 
          Nassau Branch. The Managing Agent's Nassau, The Bahamas, branch
          -------------
office.

          NationsBank.  See Preamble.
          -----------                
<PAGE>
 
                                      -16-

          Non-U.S. Lender.  See (S)8.8(c).
          ---------------                 
 
          Notes.  Collectively, the Multicurrency Notes, the Revolving Credit
          -----                                                              
Notes, the Competitive Bid Notes, the Swing Line Note, and the Term Notes.
 
          Obligations.  All indebtedness, obligations and liabilities of every
          -----------                                                         
nature of the Borrower to the Agents, the Nassau Branch, the Issuing Lender, and
the Lenders arising or incurred under this Agreement or the other Loan Documents
or in respect of Loans made, Letters of Credit issued, and the Notes or other
documents or instruments at any time evidencing any thereof, including, without
limitation, all Reimbursement Obligations.
 
          OECD.  See "Eligible Assignee."
          ----                           
 
          Optional Currency shall mean the currency of Great Britain, Germany,
          -----------------                                                   
Switzerland, France, Italy, the Netherlands, Spain, Singapore, Thailand,
Malaysia, Hong Kong, the Philippines, Canada, Argentina, New Zealand, or
Australia which is freely convertible into Dollars and which is traded on the
Nassau inter-bank foreign currency deposits market, and any other currency other
than Dollars which each of the Lenders and the Borrower have agreed shall be
made available hereunder.
 
          Paribas.  See Preamble.
          -------                
 
          PBGC.  The Pension Benefit Guaranty Corporation created by (S)4002 of
          ----                                                                 
ERISA and any successor entity or entities having similar responsibilities.
 
          Permitted Liens.  See (S)11.2.
          ---------------               
 
          Person.  Any individual, corporation, partnership, trust,
          ------                                                   
unincorporated association, business, or other legal entity, and any government
or any governmental agency or political subdivision thereof.
<PAGE>
 
                                      -17-

          Pricing Table:
          ------------- 
 
<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------  
                                                                                  APPLICABLE             APPLICABLE           
                                                                                  MARGIN FOR             MARGIN FOR
                                   APPLICABLE             APPLICABLE              BASE RATE             EUROCURRENCY
     SENIOR PUBLIC                FACILITY RATE            L/C RATE                 LOANS                  LOANS
     DEBT RATING                   (PER ANNUM)            (PER ANNUM)            (PER ANNUM)            (PER ANNUM)
- ----------------------------------------------------------------------------------------------------------------------  
<S>                               <C>                     <C>                    <C>                    <C>
 At least BBB+ by                 0.1000% (M)                   0.2000%                0.0000%          0.2000% (M)
 Standard &  Poor's               0.0750% (R)                                                           0.2250% (R)
- ----------------------------------------------------------------------------------------------------------------------  
 
 At least BBB by                  0.1250% (M)                                                           0.2250% (M)
 Standard & Poor's                0.1000% (R)                   0.2250%                0.0000%          0.2500% (R)
- ----------------------------------------------------------------------------------------------------------------------  
 
 At least BBB- by                 0.1500% (M)                   0.3000%                0.0000%          0.3000% (M)
 Standard & Poor's                0.1250% (R)                                                           0.3250% (R)
- ----------------------------------------------------------------------------------------------------------------------   
 
 At least BB+ by                  0.2000% (M)                   0.5000%                0.0000%          0.5000% (M)
 Standard & Poor's                0.1750% (R)                                                           0.5250% (R)
- ----------------------------------------------------------------------------------------------------------------------     

 If no other level applies        0.2500% (M)                   0.7500%                0.0000%          0.7500% (M)
                                  0.2000% (R)                                                           0.8000% (R)
- ----------------------------------------------------------------------------------------------------------------------     
</TABLE>

M = Multicurrency Loans
R = Revolving Credit Loans

The applicable rate or margin for any day shall be determined by the Senior
Public Debt Rating in effect as of that day.

          Prior Credit Agreement.  See Recitals.
          ----------------------                
 
          Reference Banks.  BKB and NationsBank.
          ---------------                       
 
          Register.  See (S)22.3.
          --------               
 
          Reimbursement Obligation.  The Borrower's obligation to reimburse the
          ------------------------                                            
Issuing Lender for the benefit of the Lenders on account of any drawing under
any Letter of Credit as provided in (S)3.2.
 
          Release.  Shall mean any release, issuance, spill, emission, leaking,
          -------                                                              
pumping, injection, deposit, disposal, discharge, dispersal, leaching or
<PAGE>
 
                                      -18-

migration ("Disposal") into the indoor or outdoor environment or into or out of
any property, including the movement of Hazardous Substances through or in the
air, soil, surface water, ground water, or property other than as permitted by
and in compliance with all Environmental Laws.
 
          Replacement Lender.  See (S)8.15.
          ------------------              
 
          Replacement Notice.  See (S)8.15.
          ------------------              
 
          Reserve Rate.  The highest rate, expressed as a decimal, at which any
          ------------                                                        
Lender would be required to maintain reserves under Regulation D of the Board of
Governors of the Federal Reserve System (or any subsequent or similar regulation
relating to such reserve requirements) against "Eurocurrency Liabilities" (as
such term is defined in Regulation D), or against any other category of
liabilities which might be incurred by any Lender to fund Loans bearing interest
based on the Eurocurrency Rate, if such liabilities were outstanding.
 
          Revolving Credit Commitment.  (a) Prior to the Term Out Date,
          ---------------------------                                  
$150,000,000, as such amount may be reduced pursuant to (S)5.2 hereof, or, if
such Revolving Credit Commitment has been terminated pursuant to (S)5.2 or
(S)15.2 hereof, zero, and (b) on and after the Term Out Date, zero.
 
          Revolving Credit Loan Request.  See (S)5.3.
          -----------------------------              
 
          Revolving Credit Loans.  Loans made by the Lenders pursuant to
          ----------------------                                      
(S)5.1 hereof.
 
          Revolving Credit Notes.  See (S)7.1.
          ----------------------              
 
          Sanwa.  See Preamble.
          -----                

          SEC Filings.  See (S)9.5.
          -----------              

          Section 20 Subsidiary.  A subsidiary of the bank holding company
          ---------------------                                           
controlling any Lender, which subsidiary has been granted authority by the
Federal Reserve Board to underwrite and deal in certain Ineligible Securities.

          Subordinated Indenture.  The indenture dated September 18, 1995 from
          ----------------------                                              
the Borrower to State Street Bank & Trust Company, as trustee, with respect to
the convertible subordinated debentures of the Borrower due 2005, in an
aggregate principal amount of $140,000,000.
<PAGE>
 
                                      -19-

          Subsidiary.  Any corporation, association, trust, or other business
          ----------                                                         
entity of which the Borrower shall at any time own directly or indirectly
through a Subsidiary or Subsidiaries at least a majority of the outstanding
capital stock or other interest entitled to vote generally.

          Swing Line Loans.  See (S)2.5(a).
          ----------------                 

          Swing Line Note.  See (S)2.5(a).
          ---------------                 

          Swing Line Settlement.  The making or receiving of payments, in
          ---------------------                                        
immediately available funds, by the Lenders to or from the Managing Agent in
accordance with (S)2.5 hereof to the extent necessary to cause each Lender's
actual share of the outstanding amount of the Multicurrency Loans to be equal to
such Lender's Commitment Percentage of the outstanding amount of such
Multicurrency Loans, in any case when, prior to such action, the actual share is
not so equal.

          Swing Line Settlement Amount.  See (S)2.5(b).
          ----------------------------              

          Swing Line Settlement Date.  See (S)2.5(b).
          --------------------------              

          Swing Line Settling Lender.  See (S)2.5(b).
          --------------------------              

          Syndication Agent.  See Preamble.
          -----------------                
 
          Term Loan.  The principal amount of Revolving Credit Loans outstanding
          ---------                                                             
on the Term Out Date which have been converted into a term loan pursuant to
(S)6.1.
 
          Term Out Date. October 19, 1998 or, if extended pursuant to (S)5.4,
          -------------
October 18, 1999.

          Term Out Period.  The period beginning on the Term Out Date and ending
          ---------------                                                       
on the Maturity Date, or such earlier date on which the Term Loan has been
indefeasibly paid in full.
 
          Term Notes.  See (S)6.2.
          ----------              
 
          Termination Date.  See (S)7.4.
          ----------------              
 
          Total Commitment.  The sum of the Multicurrency Commitment and the
          ----------------                                                 
Revolving Credit Commitment in effect at the time of determination.
 
          Union.  See Preamble.
          -----                
<PAGE>
 
                                      -20-

          Unrestricted Subsidiaries.  The Subsidiaries of the Borrower
          -------------------------                                   
designated as Unrestricted Subsidiaries on SCHEDULE 1 hereto and in subsequent
written notice to the Lenders, provided that the Unrestricted Subsidiaries may
not, in the aggregate, have in excess of five percent (5%) of Consolidated Total
Assets as determined in accordance with GAAP.

          (S)1.2.  RULES OF INTERPRETATION.
                   ----------------------- 

                   (a) A reference to any document or agreement shall include
          such document or agreement as amended, modified or supplemented from
          time to time in accordance with its terms and the terms of this
          Agreement.
     
                   (b) The singular includes the plural and the plural includes
          the singular.
     
                   (c) A reference to any law includes any amendment or
          modification to such law.
     
                   (d) A reference to any Person includes its permitted
          successors and permitted assigns.
     
                   (e) Accounting terms capitalized but not otherwise defined
          herein have the meanings assigned to them by GAAP applied on a
          consistent basis by the accounting entity to which they refer.
     
                   (f) The words "include," "includes" and "including" are not
          limiting.
 
                   (g) All terms not specifically defined herein or by GAAP,
          which terms are defined in the Uniform Commercial Code as in effect in
          The Commonwealth of Massachusetts, have the meanings assigned to them
          therein.
 
                   (h) Reference to a particular "(S)" refers to that section of
          this Agreement unless otherwise indicated.
          
                   (i) The words "herein," "hereof," "hereunder" and words of
          like import shall refer to this Agreement as a whole and not to any
          particular section or subdivision of this Agreement.
<PAGE>
 
                                      -21-

          (S)2.  THE MULTICURRENCY FACILITY.
                 -------------------------- 

          (S)2.1.  COMMITMENT TO LEND. Subject to the terms and conditions set
                   ------------------ 
forth in this Agreement, each of the Lenders severally agrees to lend to the
Borrower, and the Borrower may borrow and reborrow from time to time from the
Closing Date until the Maturity Date, upon notice to the Managing Agent (for
advances in Dollars) or the Nassau Branch (for advances in Optional Currencies),
given in accordance with (S)2.3 hereof, such Lender's Commitment Percentage of
such sums in Dollars or Optional Currencies as are requested by the Borrower. In
no event shall (a) the aggregate principal outstanding balance of all
Multicurrency Loans, Swing Line Loans, and Competitive Bid Loans plus the
Maximum Drawing Amount exceed at any one time the Multicurrency Commitment, or
(b) any Lender be obligated to fund or maintain Multicurrency Loans or
participate in Letters of Credit in excess of such Lender's Commitment
Percentage of the Multicurrency Commitment (in each case calculating all amounts
denominated in Optional Currencies at their Dollar Equivalent). The
Multicurrency Loans shall be made pro rata in accordance with each Lender's
Commitment Percentage.

          (S)2.2.  OPTIONAL REDUCTION OF MULTICURRENCY COMMITMENT. The Borrower
                   ---------------------------------------------- 
shall have the right at any time and from time to time upon five (5) Business
Days' written notice given by an Authorized Officer to the Managing Agent (which
shall give prompt notice thereof to each of the Lenders) to reduce by $5,000,000
or an integral multiple thereof or terminate entirely the amount of the
unborrowed or unutilized portion of the Multicurrency Commitment, provided that
the Borrower may not reduce the Multicurrency Commitment to an amount less than
the Dollar Equivalent of the sum of the outstanding Multicurrency Loans plus
Swing Line Loans plus Competitive Bid Loans plus the Maximum Drawing Amount.
Upon the effective date of any such reduction or termination, the Borrower shall
pay to the Managing Agent for the respective accounts of the Lenders the full
amount of any Facility Fee then accrued on the amount of the reduction. No
reduction of the Multicurrency Commitment hereunder shall be subject to
reinstatement. Any reduction of the Multicurrency Commitment pursuant to this
(S)2.2 shall result in a corresponding reduction in the Total Commitment.

          (S)2.3.  REQUESTS FOR MULTICURRENCY LOANS. Any Authorized Signatory of
                   -------------------------------- 
the Borrower shall give to the Managing Agent (for advances in Dollars) or the
Nassau Branch (for advances in Optional Currencies) written notice in the form
of EXHIBIT B (or telephonic notice confirmed by telecopy the same day in the
form of EXHIBIT B) of each Multicurrency Loan requested hereunder (a
"Multicurrency Loan Request") not later than (a) 1:00 P.M. (Boston time) on the
proposed Drawdown Date of any Base
<PAGE>
 
                                      -22-

Rate Advance with respect to Multicurrency Loans denominated in Dollars or (b)
2:00 P.M. (Boston time) three (3) Eurocurrency Business Days prior to the
proposed Drawdown Date of a Multicurrency Loan (which must be a Eurocurrency
Business Day), expressing all amounts denominated in Optional Currencies at
their Dollar Equivalent.  The Managing Agent or the Nassau Branch, as the case
may be, shall promptly notify the Lenders of such notice (but in no event later
than 2:00 p.m. (Boston time) in the case of any request for a Base Rate Advance
made on the proposed Drawdown Date of such Loan).  Each request for a
Multicurrency Loan hereunder shall be made in a minimum amount of $10,000,000 or
the Dollar Equivalent thereof in an Optional Currency, and shall be irrevocable
and binding on the Borrower.

          (S)2.4.  OPTIONAL CURRENCIES.
                   ------------------- 

                   (a) Subject to the terms and conditions of (S)8.13 hereof,
the Borrower may elect, prior to the Maturity Date, to draw down or convert a
portion of the funds available under (S)2.1 of this Agreement in, or to, an
Optional Currency, provided that (i) the Dollar amount of Multicurrency Loans
denominated in Dollars plus the Dollar Equivalent of the aggregate principal
amount of Multicurrency Loans denominated in Optional Currencies plus Swing Line
Loans plus Competitive Bid Loans plus the Maximum Drawing Amount outstanding
under this Agreement immediately following any such drawdown or conversion shall
not exceed the Multicurrency Commitment and (ii) the Dollar Equivalent of any
funds proposed to be converted at any one time under this (S)2.4 shall be not
less than $10,000,000. In order to exercise the foregoing option, the Borrower
must deliver to the Nassau Branch, which shall promptly give to the Lenders
notice thereof, a written notice, subject to any other notice requirements under
this Agreement, designating the Optional Currency into which the designated
portion of the Multicurrency Loans is to be drawn down or, as the case may be,
converted, at least three (3) Eurocurrency Business Days prior to the
commencement of the subsequent Interest Period relating to such portion of the
Multicurrency Loans and any such conversion shall be effected on such date. If
any such notice is not delivered to the Nassau Branch by the Borrower at least
three (3) Eurocurrency Business Days prior to the end of an existing Interest
Period with respect to any outstanding Multicurrency Loan, the Borrower shall be
deemed to have requested that the amount of the relevant Multicurrency Loan
continue to be denominated in the Optional Currency in which it then currently
stands denominated and that the subsequent Interest Period have a duration of
one (1) month.
<PAGE>
 
                                      -23-

                   (b) For all purposes of this Agreement, except as provided in
(S)8.9 hereof, the amount in one currency which shall be equivalent on any
particular date to a specified amount in another currency shall be that amount
(as conclusively ascertained by the Managing Agent absent manifest error) in the
first currency which is or could be purchased by the Managing Agent (in
accordance with its normal banking practices) with such specified amount in the
second currency in the Nassau foreign currency deposits market for delivery on
such date at the spot rate of exchange prevailing at or about 11:00 a.m., Nassau
time, on such date.

                   (c) In the event that any portion of the funds available
under the terms of this Agreement is denominated in one or more Optional
Currencies, the Dollar Equivalent of such portion of the funds shall be
calculated pursuant to paragraph (b) above by the Nassau Branch at the time the
Borrower requests a Loan and otherwise no less frequently than once per week.
The amount so determined shall then be added to the amount already outstanding
in Dollars for the purpose of determining the remaining availability of funds
under (S)(S)2.1 and 2.4(a) hereof, and any required repayments under (S)8.6(a)-
(c) hereof.

          (S)2.5.  SWING LINE LOANS; SETTLEMENTS.
                   ----------------------------- 

                   (a) Solely for ease of administration of the Multicurrency
Loans, BKB may, but shall not be required to, fund Base Rate Advances made in
accordance with the provisions of this Agreement ("Swing Line Loans"). The Swing
Line Loans shall be evidenced by a promissory note of the Borrower in
substantially the form of EXHIBIT F (the "Swing Line Note") and, at the
discretion of BKB may be in amounts less than $10,000,000 provided that the
                                                          --------  
outstanding amount of Swing Line Loans advanced by BKB hereunder shall not
exceed $20,000,000 at any time. Subject to (S)2.1(b), each Lender shall remain
severally and unconditionally liable to fund its pro rata share (based upon each
Lender's Commitment Percentage) of such Swing Line Loans on each Swing Line
Settlement Date and, in the event BKB chooses not to fund all Base Rate Advances
requested on any date, to fund its Commitment Percentage of the Base Rate
Advances requested, subject to satisfaction of the provisions hereof relating to
the making of Base Rate Advances. Prior to each Swing Line Settlement, all
payments or repayments of the principal of, and interest on, Swing Line Loans
shall be credited to the account of BKB.

                   (b) The Lenders shall effect Swing Line Settlements on (i)
the Business Day immediately following any day which BKB gives written notice to
the Managing Agent and each Lender to effect a Swing Line Settlement, (ii) the
Business Day immediately following the Managing
<PAGE>
 
                                      -24-

Agent's becoming aware of the existence of any Default or Event of Default,
(iii) the Maturity Date, and (iv) the Business Day immediately following any day
on which the outstanding amount of Swing Line Loans advanced by BKB exceeds
$20,000,000 (each such date, a "Swing Line Settlement Date"). One (1) Business
Day prior to each such Swing Line Settlement Date, the Managing Agent shall give
telephonic notice to the Lenders of (A) the respective outstanding amount of
Multicurrency Loans made by each Lender as at the close of business on the prior
day, (B) the amount that each Lender, as applicable (a "Swing Line Settling
Lender"), shall pay to effect a Swing Line Settlement (a "Swing Line Settlement
Amount") and (C) the portion (if any) of the aggregate Swing Line Settlement
Amount to be paid to each Lender. A statement of the Managing Agent submitted to
the Lenders with respect to any amounts owing hereunder shall be prima facie
                                                                 ----- -----
evidence of the amount due and owing. Each Swing Line Settling Lender shall, not
later than 1:00 p.m. (Boston time) on each Swing Line Settlement Date, effect a
wire transfer of immediately available funds to the Managing Agent at the
Managing Agent's Head Office in the amount of such Lender's Swing Line
Settlement Amount. The Managing Agent shall, as promptly as practicable during
normal business hours on each Swing Line Settlement Date, effect a wire transfer
of immediately available funds to each Lender of the Swing Line Settlement
Amount to be paid to such Lender. All funds advanced by any Lender as a Swing
Line Settling Lender pursuant to this (S)2.5 shall for all purposes be treated
as a Base Rate Advance made by such Swing Line Settling Lender to the Borrower,
and all funds received by any Lender pursuant to this (S)2.5 shall for all
purposes be treated as repayment of amounts owed by the Borrower with respect to
Base Rate Advances made by such Lender.

                   (c) The Managing Agent may (unless notified to the contrary
by any Swing Line Settling Lender by 12:00 noon (Boston time) one (1) Business
Day prior to the Swing Line Settlement Date) assume that each Swing Line
Settling Lender has made available (or will make available by the time specified
in (S)2.5(b)) to the Managing Agent its Swing Line Settlement Amount, and the
Managing Agent may (but shall not be required to), in reliance upon such
assumption, make available to each applicable Lender its share (if any) of the
aggregate Swing Line Settlement Amount. If the Swing Line Settlement Amount of
such Swing Line Settling Lender is made available to the Managing Agent by such
Swing Line Settling Lender on a date after such Swing Line Settlement Date, such
Swing Line Settling Lender shall pay the Managing Agent on demand an amount
equal to the product of (i) the average, computed for the period referred to in
clause (iii) below, of the weighted average annual interest rate paid by the
Managing Agent for federal funds acquired by the Managing Agent during each day
included in such period times (ii) such Swing Line Settlement Amount times
                        -----                                        -----
<PAGE>
 
                                      -25-

(iii) a fraction, the numerator of which is the number of days that elapse from
and including such Swing Line Settlement Date to but not including the date on
which such Swing Line Settlement Amount shall become immediately available to
the Managing Agent, and the denominator of which is 365. Upon payment of such
amount such Swing Line Settling Lender shall be deemed to have delivered its
Swing Line Settlement Amount on the Swing Line Settlement Date and shall become
entitled to interest payable by the Borrower with respect to such Swing Line
Settling Lender's Swing Line Settlement Amount as if such share were delivered
on the Swing Line Settlement Date. If such Swing Line Settlement Amount is not
in fact made available to the Managing Agent by such Swing Line Settling Lender
within three (3) Business Days of such Swing Line Settlement Date, the Managing
Agent shall be entitled to recover such amount from the Borrower, with interest
thereon at the Base Rate.

                (d) After any Swing Line Settlement Date, any payment by the
Borrower of Swing Line Loans hereunder shall be allocated among the Lenders, in
amounts determined so as to provide that after such application and the related
Swing Line Settlement, the outstanding amount of Multicurrency Loans of each
Lender equals, as nearly as practicable, such Lender's Commitment Percentage of
the aggregate amount of Multicurrency Loans.

          (S)3. LETTERS OF CREDIT.
                ----------------- 

          (S)3.1  LETTER OF CREDIT ISSUANCE. Subject to the terms and conditions
                  -------------------------
hereof and receipt by the Managing Agent and the Issuing Lender of a written
notice in the form of EXHIBIT C (or telephonic notice confirmed by telecopy the
same day in the form of EXHIBIT C) of each Letter of Credit requested hereunder
(a "Letter of Credit Request"), together with a Letter of Credit Application
executed by an Authorized Signatory of the Borrower, at least four (4) Business
Days prior to issuance, and in reliance upon the representations and warranties
of the Borrower contained herein and upon the agreement of the Lenders set forth
in (S)3.7 hereof, the Issuing Lender, on behalf of the Lenders, will issue
Letters of Credit denominated in Dollars or any Optional Currency in such form
as may be requested from time to time by the Borrower and agreed to by the
Issuing Lender (which Letters of Credit may provide for automatic annual
renewals subject to the satisfaction of the conditions precedent to the renewal
set forth herein and in the Letter of Credit and which may be opened to support
obligations of the Subsidiaries but shall be for the account of the Borrower);
provided, however, that after giving effect to such Letter of Credit Request,
the Maximum Drawing Amount shall not exceed the lesser of (a) $100,000,000 or
(b) the Multicurrency Commitment minus the aggregate outstanding principal
                                 -----  
<PAGE>
 
                                      -26-

amount of all Multicurrency Loans, Competitive Bid Loans, and Swing Line Loans
(in each case calculating all amounts denominated in Optional Currencies at
their Dollar Equivalent). No Letter of Credit shall have an expiration date
later than thirty (30) days (or, if the Letter of Credit is confirmed by a
confirmer or otherwise provides for one or more nominated Persons, forty-five
(45) days) prior to the Maturity Date. The Borrower shall not be required to
make requests for Letters of Credit in a minimum amount. All Existing Letters of
Credit outstanding on the Closing Date under the Prior Credit Agreement shall be
Letters of Credit under this Agreement. To the extent that the provisions of any
Letter of Credit Application conflict with the provisions of this Agreement, the
provisions of this Agreement shall control.

          (S)3.2.  REIMBURSEMENT OBLIGATION OF THE BORROWER. In order to induce
                   ----------------------------------------  
the Issuing Lender to issue, extend and renew the Letters of Credit, the
Borrower agrees to reimburse or pay to the Issuing Lender for the benefit of the
Lenders with respect to each Letter of Credit issued, extended or renewed by the
Issuing Lender hereunder as follows:

                   (a) On each date that any draft presented under any Letter of
          Credit is honored by the Issuing Lender or the Issuing Lender
          otherwise makes payment with respect thereto, (i) the amount paid by
          the Issuing Lender under or with respect to such Letter of Credit, and
          (ii) the amount of any taxes (other than income taxes), fees, charges
          or other costs and expenses whatsoever incurred by the Issuing Lender
          in connection with any payment made by the Issuing Lender under, or
          with respect to, such Letter of Credit.
          
                   (b) Each such payment shall be made to the Managing Agent in
          accordance with (S)3.3 hereof.

          (S)3.3.  LETTER OF CREDIT PAYMENTS. If any draft shall be presented or
                   ------------------------- 
other demand for payment shall be made under any Letter of Credit, the Issuing
Lender shall notify the Borrower and the Managing Agent of the date and amount
of the draft presented or demand for payment and of the date and time when the
Issuing Lender expects to pay or has paid such draft or honor such demand for
payment. On the date that such draft is paid or other payment is made by the
Issuing Lender, the Managing Agent shall promptly notify the Borrower of the
amount of any unpaid Reimbursement Obligation. Provided that no Event of Default
under (S)15.1(h) or (S)15.1(i) has occurred, any Reimbursement Obligations in
Dollars which are not paid by the Borrower to the Managing Agent on the date
that such draft is paid or other payment is made by the Issuing Lender shall be
deemed to be Multicurrency Loans for all purposes hereunder and shall bear
interest at
<PAGE>
 
                                      -27-

the Base Rate plus the Applicable Margin until converted in accordance with
(S)2.4 hereof. Any Reimbursement Obligations with respect to Letters of Credit
denominated in an Optional Currency which are not paid by the Borrowers to the
Managing Agent on the date that such draft is paid or other payment is made by
the Issuing Lender shall bear interest until payment in full (whether before or
after judgment) at the rate specified in (S)8.3 hereof for overdue amounts. The
responsibility of the Issuing Lender to the Borrower and the Lenders shall be
only to determine that all documents (including each draft) required to be
delivered under each Letter of Credit in connection with such presentment have
been delivered and are in conformity in all material respects with such Letter
of Credit.

          (S)3.4.  THE UNIFORM CUSTOMS AND PRACTICE; OBLIGATIONS ABSOLUTE.
                   ------------------------------------------------------ 
 
                   (a) The Uniform Customs and Practice for Documentary Credits
          (1993 Revision), International Chamber of Commerce Publication No. 500
          (the "Uniform Customs"), shall be binding on the Borrower and the
          Issuing Lender with respect to each Letter of Credit, except as
          otherwise provided in such Letter of Credit and except to the extent
          otherwise from time to time agreed to by the Borrower and the relevant
          Issuing Lender in writing. The Borrower assumes all risks of the acts
          or omissions of the beneficiary of the Letter of Credit with respect
          to the Letter of Credit.

                   (b) The Borrower's obligations under (S)3.2 and this (S)3.4
          shall be absolute and unconditional under any and all circumstances
          and irrespective of the occurrence of any Default or Event of Default
          or any condition precedent whatsoever or any setoff, counterclaim or
          defense to payment which the Borrower may have or have had against the
          Issuing Lender, the Agents, the Lenders, or any beneficiary of any
          Letter of Credit. In furtherance of, and not in limitation of, the
          Issuing Lender's and the Managing Agent's rights and powers under the
          Uniform Customs, but subject to all other provisions of (S)(S)3.3 and
          3.4, the Borrower further agrees with the Issuing Lender that the
          Issuing Lender shall not have any liability for and that the Borrower
          assumes all responsibility for: (i) the genuineness of any signature;
          (ii) the form, sufficiency, accuracy, genuineness, falsification or
          legal effect of any draft, certification or other document required by
          any Letter of Credit or the authority of the Person signing the same;
          (iii) the failure of any instrument to bear any reference or adequate
          reference to the Letter of Credit or the failure of any Persons to
          note the amount of any instrument on the reverse of the Letter of
          Credit or to surrender the Letter of Credit if surrender is not an
          express
<PAGE>
 
                                      -28-

          condition of drawing thereunder; (iv) the good faith or acts of any
          Person other than the Issuing Lender and its agents and employees; (v)
          the existence, form, sufficiency or breach of or default under any
          agreement or instrument (other than the applicable Letter of Credit)
          of any nature whatsoever; (vi) any delay in giving or failure to give
          any notice, demand or protest on the part of any Issuing Lender; and
          (vii) any error, omission, delay in or non-delivery of any notice or
          other communication on the part of the Issuing Lender, however sent.
          The determination as to whether the conditions to drawing have been
          satisfied prior to the expiration of the applicable Letter of Credit
          and whether such other documents are in proper and sufficient form for
          compliance with such Letter of Credit shall be made by the Issuing
          Lender in its sole discretion, which determination shall be prima
                                                                      -----
          facie evidence of compliance. It is agreed that the Issuing Lender may
          -----
          honor, as complying with the terms of any Letter of Credit and this
          Agreement, any documents which appear on their face to be in
          accordance with the terms and conditions of such Letter of Credit, and
          signed or issued by the beneficiary thereof. Any action, inaction or
          omission on the part of the Issuing Lender under or in connection with
          any Letter of Credit or related instruments or documents, if in good
          faith and with due care and in conformity with such laws, regulations,
          usage of trade or commercial or banking customs as may be applicable,
          shall be binding upon the Borrower, shall not place the Issuing Lender
          under any liability to the Borrower, and shall not affect, impair or
          prevent the vesting of any of the Issuing Lender's rights or powers
          hereunder or the Borrower's obligation to make full reimbursement
          hereunder.

          (S)3.5.  RELIANCE BY ISSUING LENDER. To the extent not inconsistent
                   --------------------------
with (S)(S)3.3 and 3.4, the Issuing Lender shall be entitled to rely, and shall
be fully protected in relying upon, any Letter of Credit, draft, writing,
resolution, notice, consent, certificate, affidavit, letter, cablegram,
telegram, telecopy, telex or teletype message, statement, order or other
document believed by it to be genuine and correct and to have been signed, sent
or made by the proper Person or Persons and upon advice and statements of legal
counsel, independent accountants and other experts selected by the Issuing
Lender. The Issuing Lender shall be fully justified in failing or refusing to
take any action under this Agreement unless it shall first have received such
advice or concurrence of the Majority Lenders as it reasonably deems appropriate
or it shall first be indemnified to its reasonable satisfaction by the Lenders
against any and all liability and expense which may be incurred by it by reason
of taking or continuing to take any such action. The Issuing Lender shall in all
cases be fully protected in acting, or in refraining from acting, under this
Agreement in accordance with a
<PAGE>
 
                                      -29-

request of the Lenders, and such request and any action taken or failure to act
pursuant thereto shall be binding upon the Lenders and all future holders of the
Notes or of a Letter of Credit Participation.

          (S)3.6.  LETTER OF CREDIT FEE. The Borrower shall pay a fee (the
                   -------------------- 
"Letter of Credit Fee") equal to the Applicable L/C Rate on the Maximum Drawing
Amount to the Managing Agent for the account of the Lenders, to be shared pro
                                                                          --- 
rata by the Lenders in accordance with their respective Commitment Percentages.
- ----
The Borrower shall also pay a fee (the "Issuance Fee") to the Issuing Lender,
for its own account, equal to 0.07% per annum on the Maximum Drawing Amount of
all Letters of Credit issued by such Issuing Lender, plus its customary
administrative charges and such other fees as agreed between the Borrower and
such Issuing Lender. The Letter of Credit Fee and the Issuance Fee shall be
payable for the number of days each Letter of Credit is outstanding, and shall
be payable quarterly in arrears on the last day of each calendar quarter for the
quarter then ended, and on the Maturity Date.

          (S)3.7.  REIMBURSEMENT OBLIGATIONS OF LENDERS. Each Lender severally
                   ------------------------------------
agrees that it shall be absolutely liable, without regard to the occurrence of
any Default or Event of Default or any other condition precedent whatsoever, to
reimburse the Issuing Lender on demand for its Commitment Percentage of the
amount of each draft paid by the Issuing Lender under each Letter of Credit to
the extent that such amount is not reimbursed by the Borrower pursuant to (S)3.2
(such agreement by a Lender being called herein the "Letter of Credit
Participation" of such Lender). Each such payment made by a Lender shall be
treated as the purchase by the Lender of a participating interest in the
Borrower's Reimbursement Obligation under (S)3.2 in an amount equal to such
payment. Each Lender shall share in accordance with its participating interest
in any interest which accrues pursuant to (S)3.3. Each Lender agrees that its
obligation to reimburse the Issuing Lender pursuant to this (S)3.7 shall not be
affected in any way by any circumstance other than the gross negligence or
willful misconduct of the Issuing Lender or the Managing Agent.

          (S)3.8.  NOTICE REGARDING LETTERS OF CREDIT. One (1) Business Day
                   ---------------------------------- 
prior to the issuance of any Letter of Credit or amendments or extensions or
renewals thereof, the Issuing Lender shall notify the Managing Agent of the
terms of such Letter of Credit, amendment or extension or renewal. On the day of
any drawing under any Letter of Credit, the Issuing Lender shall notify the
Managing Agent of such drawing under any Letter of Credit. The Managing Agent
will promptly notify each of the Lenders of any Letter of Credit issued
hereunder and will provide a quarterly summary of all outstanding Letters of
Credit to each of the Lenders.
<PAGE>
 
                                      -30-

          (S)4. COMPETITIVE BID LOANS.
                --------------------- 

          (S)4.1.  THE COMPETITIVE BID OPTION. In addition to the Loans made
                   -------------------------- 
pursuant to (S)2 and (S)5 hereof, the Borrower may request Competitive Bid Loans
pursuant to the terms of this (S)4. The Lenders may, but shall have no
obligation to, make such offers and the Borrower may, but shall have no
obligation to, accept such offers in the manner set forth in this (S)4.
Notwithstanding any other provision herein to the contrary, at no time shall the
aggregate principal amount of Competitive Bid Loans outstanding at any time
exceed the lesser of (i) $100,000,000 or (ii) the Multicurrency Commitment minus
                                                                           -----
(a) the aggregate outstanding principal amount of Multicurrency Loans and Swing
Line Loans, and (b) the Maximum Drawing Amount.

          (S)4.2.  COMPETITIVE BID LOAN ACCOUNTS: COMPETITIVE BID NOTES.
                   ---------------------------------------------------- 

                    (a) The obligation of the Borrower to repay the outstanding
          principal amount of any and all Competitive Bid Loans, plus interest
          at the applicable Competitive Bid Rate accrued thereon, shall be
          evidenced by this Agreement and by individual loan accounts (the
          "Competitive Bid Loan Accounts" and individually, a "Competitive Bid
          Loan Account") maintained by the Managing Agent on its books for each
          of the Lenders, it being the intention of the parties hereto that,
          except as provided for in paragraph (b) of this (S)4.2, the Borrower's
          obligations with respect to Competitive Bid Loans are to be evidenced
          only as stated herein and not by separate promissory notes.

                    (b) Any Lender may at any time, and from time to time,
          request that any Competitive Bid Loans outstanding to such Lender be
          evidenced by a promissory note of the Borrower in substantially the
          form of EXHIBIT G hereto (each, a "Competitive Bid Note"), dated as of
          the Closing Date and completed with appropriate insertions. One
          Competitive Bid Note shall be payable to the order of each Lender in
          an amount equal to $100,000,000, and representing the obligation of
          the Borrower to pay such Lender such principal amount or, if less, the
          outstanding principal amount of any and all Competitive Bid Loans made
          by such Lender, plus interest at the applicable Competitive Bid Rate
          or the LIBOR Rate plus the Competitive Bid Margin accrued thereon, as
          set forth herein. Upon execution and delivery by the Borrower of a
          Competitive Bid Note, the Borrower's obligation to repay any and all
          Competitive
<PAGE>
 
                                      -31-


          Bid Loans made by such Lender, plus interest at the applicable
          Competitive Bid Rate or the LIBOR Rate plus the Competitive Bid Margin
          accrued thereon, as set forth herein. Upon execution and delivery by
          the Borrower of a Competitive Bid Note, the Borrower's obligation to
          repay any and all Competitive Bid Loans made to it by such Lender and
          all interest thereon shall thereafter be evidenced by such Competitive
          Bid Note.

               (c) The Borrower irrevocably authorizes (i) each Lender to make
          or cause to be made, in connection with a Drawdown Date of any
          Competitive Bid Loan or at the time of receipt of any payment of
          principal on such Lender's Competitive Bid Note, if applicable, and
          (ii) the Managing Agent to make or cause to be made, in connection
          with a Drawdown Date of any Competitive Bid Loan or at the time of
          receipt of any payment of principal on such Lender's Competitive Bid
          Loan Account, if applicable, an appropriate notation on such Lender's
          records or on the schedule attached to such Lender's Competitive Bid
          Note or a continuation of such schedule attached thereto, or the
          Managing Agent's records, as applicable, reflecting the making of the
          Competitive Bid Loan or the receipt of such payment (as the case may
          be) and such Lender may, prior to any transfer of a Competitive Bid
          Note, endorse on the reverse side thereof the outstanding principal
          amount of Competitive Bid Loans evidenced thereby.  The outstanding
          amount of the Competitive Bid Loans set forth on such Lender's record
          or the Managing Agent's records, as applicable, shall be prima facie
                                                                   ----- -----
          evidence of the principal amount thereof owing and unpaid to such
          Lender, but the failure to record, or any error in so recording, any
          such amount shall not limit or otherwise affect the obligations of the
          Borrower hereunder to make payments of principal of or interest on any
          Competitive Bid Loan when due.

     (S)4.3. COMPETITIVE BID QUOTE REQUEST; INVITATION FOR COMPETITIVE BID 
             ------------------------------------------------------------- 
QUOTES.
- ------
               (a) When the Borrower wishes to request offers to make
          Competitive Bid Loans under this (S)4, it shall transmit to the
          Managing Agent by telex or facsimile a Competitive Bid Quote Request
          substantially in the form of EXHIBIT H hereto (a "Competitive Bid
          Quote Request") so as to be received no later than 1:00 p.m. (Boston
          time) (x) five (5) Eurocurrency Business Days prior to the requested
          Drawdown Date in the case of a LIBOR Competitive Bid Loan or (y) one
          (1) Business Day prior to the requested Drawdown Date in the case of
          an Absolute Competitive Bid Loan, specifying:
<PAGE>
 
                                      -32-

                    (i) the requested Drawdown Date (which must be a
               Eurocurrency Business Day in the case of a LIBOR Competitive Bid
               Loan or a Business Day in the case of an Absolute Competitive Bid
               Loan);

                    (ii) the aggregate amount of such Competitive Bid Loans,
               which shall be $10,000,000 or greater integral multiple of
               $1,000,000;

                    (iii) the duration of the Interest Period(s) applicable
               thereto, subject to the provisions of the definition of Interest
               Period; and

                    (iv) whether the Competitive Bid Quotes requested are for
               LIBOR Competitive Bid Loans or Absolute Competitive Bid Loans.

          The Borrower may request offers to make Competitive Bid Loans for more
          than one Interest Period in a single Competitive Bid Quote Request.
          No new Competitive Bid Quote Request shall be given until the Borrower
          has notified the Managing Agent of its acceptance or non-acceptance of
          the Competitive Bid Quotes relating to any outstanding Competitive Bid
          Quote Request.

               (b) Promptly upon receipt of a Competitive Bid Quote Request, the
          Managing Agent shall send to the Lenders by telecopy or facsimile
          transmission an Invitation for Competitive Bid Quotes substantially in
          the form of EXHIBIT I hereto (an "Invitation for Competitive Bid
          Quotes"), which shall constitute an invitation by the Borrower to each
          Lender to submit Competitive Bid Quotes in accordance with this (S)4.

     (S)4.4. ALTERNATIVE MANNER OF PROCEDURE.  If, after receipt by the Managing
             ------------------------------- 
Agent and each of the Lenders of a Competitive Bid Quote Request from the
Borrower in accordance with (S)4.3, the Managing Agent or any Lender shall be
unable to complete any procedure of the auction process described in (S)(S)4.5
through 4.6 (inclusive) due to the inability of such Person to transmit or
receive communications through the means specified therein, such Person may rely
on telephonic notice for the transmission or receipt of such communications. In
any case where such Person shall rely on telephone transmission or receipt, any
communication made by telephone shall, as soon as possible thereafter, be
followed by written confirmation thereof.
<PAGE>
 
                                      -33-

     (S)4.5. SUBMISSION AND CONTENTS OF COMPETITIVE BID QUOTES.
              ------------------------------------------------- 

          (a) Each Lender may, but shall be under no obligation to, submit a
     Competitive Bid Quote containing an offer or offers to make Competitive Bid
     Loans in response to any Competitive Bid Quote Request.  Each Competitive
     Bid Quote must comply with the requirements of this (S)4.5 and must be
     submitted to the Managing Agent by telex or facsimile transmission at its
     offices as specified in or pursuant to (S)24 not later than (x) 2:00 p.m.
     (Boston time) on the fourth Eurocurrency Business Day prior to the proposed
     Drawdown Date, in the case of a LIBOR Competitive Bid Loan or (y) 10:00
     a.m. (Boston time) on the proposed Drawdown Date, in the case of an
     Absolute Competitive Bid Loan, provided that Competitive Bid Quotes may be
                                    --------                                   
     submitted by the Managing Agent in its capacity as a Lender only if it
     submits its Competitive Bid Quote to the Borrower not later than (x) one
     hour prior to the deadline for the other Lenders, in the case of a LIBOR
     Competitive Bid Loan or (y) 15 minutes prior to the deadline for the other
     Lenders, in the case of an Absolute Competitive Bid Loan.  Subject to the
     provisions of (S)(S)13 and 14 hereof, any Competitive Bid Quote so made
     shall be irrevocable except with the written consent of the Managing Agent
     given on the instructions of the Borrower.

          (b)  Each Competitive Bid Quote shall be in substantially the form of
     EXHIBIT J hereto and shall in any case specify:

               (i)  the proposed Drawdown Date;

               (ii) the principal amount of the Competitive Bid Loan for which
          each proposal is being made, which principal amount (w) may be greater
          than or less than the Multicurrency Commitment of the quoting Lender,
          (x) must be $5,000,000 or a larger multiple of $1,000,000, (y) may not
          exceed the aggregate principal amount of Competitive Bid Loans for
          which offers were requested and (z) may be subject to an aggregate
          limitation as to the principal amount of Competitive Bid Loans for
          which offers being made by such quoting Lender may be accepted;

               (iii) the Interest Period(s) for which Competitive Bid Quotes
          are being submitted;

                     (iv) in the case of a LIBOR Competitive Bid Loan, the
               margin above or below the applicable LIBOR Rate (the "Competitive
               Bid Margin") offered for each such Competitive Bid Loan,
               expressed as a percentage 
<PAGE>
 
                                      -34-

               (specified to the nearest 1/10,000th of 1%) to be added to or
               subtracted from such LIBOR Rate;

                     (v) in the case of an Absolute Competitive Bid Loan, the
               rate of interest per annum (specified to the nearest 1/10,000th
               of 1%) (the "Competitive Bid Rate") offered for each such
               Absolute Competitive Bid Loan; and

                     (vi) the identity of the quoting Lender.

          A Competitive Bid Quote may include up to five separate offers by the
          quoting Lender with respect to each Interest Period specified in the
          related Invitation for Competitive Bid Quotes.

          (c)  Any Competitive Bid Quote shall be disregarded if it:

                     (i) is not substantially in the form of EXHIBIT J hereto;

                     (ii) contains qualifying, conditional or similar language;

                     (iii) proposes terms other than or in addition to those set
               forth in the applicable Invitation for Competitive Bid Quotes; or

                     (iv) arrives after the time set forth in (S)4.5(a) hereof.

     (S)4.6. NOTICE TO BORROWER.  The Managing Agent shall promptly notify the 
             ------------------ 
Borrower of the terms (x) of any Competitive Bid Quote submitted by a Lender
that is in accordance with (S)4.5 and (y) of any Competitive Bid Quote that
amends, modifies or is otherwise inconsistent with a previous Competitive Bid
Quote submitted by such Lender with respect to the same Competitive Bid Quote
Request. Any such subsequent Competitive Bid Quote shall be disregarded by the
Managing Agent unless such subsequent Competitive Bid Quote is submitted solely
to correct a manifest error in such former Competitive Bid Quote. The Managing
Agent's notice to the Borrower shall specify (A) the aggregate principal amount
of Competitive Bid Loans for which offers have been received for each Interest
Period specified in the related Competitive Bid Quote Request, (B) the
respective principal amounts and Competitive Bid Margins or Competitive Bid
Rates, as the case may be, so offered, and the identity of the respective
Lenders submitting such offers, and (C) if applicable, limitations on the
aggregate
<PAGE>
 
                                      -35-

principal amount of Competitive Bid Loans for which offers in any single
Competitive Bid Quote may be accepted.

     (S)4.7. ACCEPTANCE AND NOTICE BY BORROWER AND MANAGING AGENT.  Not later 
             ---------------------------------------------------- 
than 11:00 a.m. (Boston time) on (x) the third Eurocurrency Business Day prior
to the proposed Drawdown Date, in the case of a LIBOR Competitive Bid Loan or
(y) the proposed Drawdown Date, in the case of an Absolute Competitive Bid Loan,
the Borrower shall notify the Managing Agent of its acceptance or non-acceptance
of each Competitive Bid Quote in substantially the form of EXHIBIT K hereto. The
Borrower may accept any Competitive Bid Quote in whole or in part; provided
that:

          (i) the aggregate principal amount of each Competitive Bid Loan may
     not exceed the applicable amount set forth in the related Competitive Bid
     Quote Request;

          (ii) acceptance of offers may only be made on the basis of ascending
     Competitive Bid Margins or Competitive Bid Rates, as the case may be, and

          (iii) the Borrower may not accept any offer that is described in
     subsection 4.5(c) or that otherwise fails to comply with the requirements
     of this Agreement.

     The Managing Agent shall promptly notify each Lender which submitted a
Competitive Bid Quote of the Borrower's acceptance or non-acceptance thereof.
At the request of any Lender which submitted a Competitive Bid Quote and with
the consent of the Borrower, the Managing Agent will promptly notify all Lenders
which submitted Competitive Bid Quotes of (a) the aggregate principal amount of,
and (b) the range of Competitive Bid Rates or Competitive Bid Margins of, the
accepted Competitive Bid Loans for each requested Interest Period.

     (S)4.8. ALLOCATION BY MANAGING AGENT.  If offers are made by two or more 
             ---------------------------- 
Lenders with the same Competitive Bid Margin or Competitive Bid Rate, as the
case may be, for a greater aggregate principal amount than the amount in respect
of which offers are accepted for the related Interest Period, the principal
amount of Competitive Bid Loans in respect of which such offers are accepted
shall be allocated by the Managing Agent among such Lenders as nearly as
possible (in such multiples, not less than $1,000,000, as the Managing Agent may
deem appropriate) in proportion to the aggregate principal amounts of such
offers. Determination by the Managing Agent of the amounts of Competitive Bid
Loans shall be conclusive in the absence of manifest error.
<PAGE>
 
                                      -36-

     (S)4.9. FUNDING OF COMPETITIVE BID LOANS.  If, on or prior to the Drawdown 
             -------------------------------- 
Date of any Competitive Bid Loan, the Total Commitment has not terminated in
full and if, on such Drawdown Date, the applicable conditions of (S)(S)13 and 14
hereof are satisfied, the Lender or Lenders whose offers the Borrower has
accepted will fund each Competitive Bid Loan so accepted. Such Lender or Lenders
will make such Competitive Bid Loans by crediting the Managing Agent for further
credit to the Borrower's specified account with the Managing Agent, in
immediately available funds not later than 1:00 p.m. (Boston time) on such
Drawdown Date.

     (S)4.10. FUNDING LOSSES.  If, after acceptance of any Competitive Bid Quote
              -------------- 
Bid Quote pursuant to (S)4.7, the Borrower (i) fails to borrow any Competitive
Bid Loan so accepted on the date specified therefor, or (ii) repays the
outstanding amount of the Competitive Bid Loan prior to the last day of the
Interest Period relating thereto, the Borrower shall indemnify the Lender making
such Competitive Bid Quote or funding such Competitive Bid Loan against any loss
or expense incurred by reason of the liquidation or reemployment of deposits or
other funds acquired by such Lender to fund or maintain such unborrowed Loans,
including, without limitation compensation as provided in (S)8.12.

     (S)4.11. REPAYMENT OF COMPETITIVE BID LOANS; INTEREST.  The principal of 
              -------------------------------------------- 
each Competitive Bid Loan shall become absolutely due and payable by the
Borrower on the last day of the Interest Period relating thereto, and the
Borrower hereby absolutely and unconditionally promises to pay to the Managing
Agent for the account of the relevant Lenders at or before 1:00 p.m. (Boston
time) on the last day of the Interest Periods relating thereto the principal
amount of all such Competitive Bid Loans, plus interest thereon at the
applicable Competitive Bid Rates. The Competitive Bid Loans shall bear interest
at the rate per annum specified in the applicable Competitive Bid Quotes.
Interest on the Competitive Bid Loans shall be payable (a) on the last day of
the applicable Interest Periods, and if any such Interest Period is longer than
three months, also on the last day of the third month following the commencement
of such Interest Period, and (b) on the Maturity Date. Subject to the terms of
this Agreement, the Borrower may make Competitive Bid Quote Requests with
respect to new borrowings of any amounts so repaid prior to the Maturity Date.

     (S)5. REVOLVING CREDIT LOANS.
           ---------------------- 

     (S)5.1. COMMITMENT TO LEND.
             ------------------ 

          (a) Subject to the terms and conditions set forth in this Agreement,
each of the Lenders severally agrees to lend to the Borrower, 
<PAGE>
 
                                      -37-

and the Borrower may borrow and reborrow from time to time from the Closing Date
until the Term Out Date, upon notice to the Managing Agent given in accordance
with (S)5.3 hereof, such sums in Dollars as are requested by the Borrower up to
a maximum aggregate principal amount outstanding (after giving effect to all
amounts requested) at any one time equal to such Lender's Commitment Percentage
of the Revolving Credit Commitment. In no event shall (a) the aggregate
principal outstanding balance of the Revolving Credit Loans (after giving effect
to all amounts requested) exceed at any one time the Revolving Credit
Commitment, or (b) any Lender be obligated to fund or maintain Revolving Credit
Loans in excess of such Lender's Commitment Percentage of the Revolving Credit
Commitment. The Revolving Credit Loans shall be made pro rata in accordance with
each Lender's Commitment Percentage.
 
          (b) As of the Term Out Date, the Revolving Credit Commitment shall
terminate, and the outstanding Revolving Credit Loans shall convert into the
Term Loan in accordance with (S)6.1.

     (S)5.2. OPTIONAL REDUCTION OF REVOLVING CREDIT COMMITMENT.  The Borrower 
             ------------------------------------------------- 
shall have the right at any time and from time to time on or before the Term Out
Date upon five (5) Business Days' written notice given by an Authorized Officer
of the Borrower to the Managing Agent (which shall then give prompt notice
thereof to each of the Lenders) to reduce by $5,000,000 or an integral multiple
thereof or terminate entirely the amount of the unborrowed or unutilized portion
of the Revolving Credit Commitment, provided that the Borrower may not reduce
the Revolving Credit Commitment to an amount less than the sum of the then
outstanding Revolving Credit Loans. No reduction of the Revolving Credit
Commitment hereunder shall be subject to reinstatement. Any reduction of the
Revolving Credit Commitment pursuant to this (S)5.2 shall result in a
corresponding reduction in the Total Commitment.

     (S)5.3. REQUESTS FOR REVOLVING CREDIT LOANS.  An Authorized Signatory of 
             ----------------------------------- 
the Borrower shall give to the Managing Agent written notice in the form of
EXHIBIT E (or telephonic notice confirmed by telecopy the same day in the form
of EXHIBIT E) of each Revolving Credit Loan requested hereunder (a "Revolving
Credit Loan Request") not later than (a) 1:00 p.m. (Boston time) on the proposed
Drawdown Date of any Base Rate Advance, or (b) 2:00 p.m. (Boston time) three (3)
Business Days prior to the Drawdown Date of any Eurocurrency Advance. The
Managing Agent shall promptly notify the Lenders of such notice (but in no event
later than 2:00 p.m. (Boston time) in the case of any request for a Base Rate
Advance made on the proposed Drawdown Date of such Revolving Credit Loan). Each
request for a Revolving Credit Loan hereunder shall be made in the minimum
<PAGE>
 
                                      -38-

amount of $10,000,000 or a greater integral multiple of $1,000,000, and shall be
irrevocable and binding on the Borrower.

     (S)5.4. OPTION TO EXTEND THE TERM OUT DATE.  The Revolving Credit 
             ---------------------------------- 
Commitment shall terminate on the initial Term Out Date of October 19, 1998,
provided, however, that the initial Term Out Date may be extended for an
additional 364 days to a final Term Out Date of October 18, 1999, as provided in
this (S)5.4, upon the written request of the Borrower and subject to the written
consent of all of the Lenders. Such written request shall be given by the
Borrower to the Managing Agent no later than August 19, 1998 (two (2) months
prior to the initial Term Out Date). If on or prior to September 19, 1998 all of
the Lenders consent to such extension by written notice to the Managing Agent,
the Revolving Credit Commitment and Term Out Date automatically shall, on the
initial Term Out Date, be extended to October 18, 1999. If on or prior to
September 19, 1998, any Lender shall have objected to such requested extension
by written notice to the Managing Agent or shall not have delivered written
notice to the Managing Agent consenting to such requested extension, then the
Borrower or the Managing Agent may, on or prior to the initial Term Out Date,
replace or payout such Lender in accordance with (S)8.15.

     (S)6. THE TERM LOAN.
           ------------- 

     (S)6.1. CONVERSION OF OUTSTANDING REVOLVING CREDIT LOANS INTO THE TERM 
             --------------------------------------------------------------
LOAN.  On the Term Out Date, subject to the terms and conditions contained
- ----
herein, the outstanding Revolving Credit Loans shall automatically convert into
the Term Loan. The Term Loan shall be in the aggregate principal amount equal to
the outstanding Revolving Credit Loans on the Term Out Date. The portion of the
Term Loan owing to each Lender shall be equal to the portion of the outstanding
Revolving Credit Loans owing to such Lender on the Term Out Date.

     (S)6.2. THE TERM NOTES.  The Term Loan shall be evidenced by separate 
             -------------- 
promissory notes of the Borrower in substantially the form of EXHIBIT L hereto
(each a "Term Note"), each dated as of the Term Out Date and completed with
appropriate insertions. Each Term Note shall have been duly and properly
authorized and executed by the Borrower and shall have been delivered by the
Borrower to the Lenders as of the Term Out Date. One Term Note shall be payable
to the order of each Lender in a principal amount equal to such Lender's
Commitment Percentage of the Revolving Credit Loans outstanding on the Term Out
Date which have been converted into the Term Loan, and shall represent the
obligation of the Borrower to pay to such Lender such principal amount (or the
outstanding principal amount, if less) plus interest accrued thereon as set
forth below. The 
<PAGE>
 
                                      -39-

Borrower irrevocably authorizes each Lender to make or cause to be made an
appropriate notation on such Lender's Term Note record reflecting the original
principal amount of such Term Loan and, at or about the time of such Lender's
receipt of any payment of principal on such Lender's Term Note, an appropriate
notation on such Lender's Term Note reflecting such payment. The outstanding
amount of the Term Loan set forth on such Lender's Term Note record shall be
prima facie evidence of the principal amount thereof owing and unpaid to such
Lender, but the failure to record, or any error in so recording, any such amount
on such Lender's Term Note record shall not limit, increase, or otherwise affect
the obligations of the Borrower hereunder or under any Term Note to make
payments of principal or interest on any Term Note when due.

     (S)6.3. SCHEDULED REPAYMENTS.  The Borrower promises to pay to the Managing
             -------------------- 
Agent for the account of the Lenders the principal amount of the Term Loan in
(a) fifteen (15) equal quarterly installments, commencing on December 31, 1998,
each equal to 1/15th of the principal balance of the Revolving Credit Loans
outstanding on the initial Term Out Date or (b) eleven (11) equal quarterly
installments, commencing on December 31, 1999, each equal to 1/11th of the
principal balance of the Revolving Credit Loans outstanding on the Term Out Date
if the Term Out Date is extended pursuant to (S)5.4, with a final payment on the
Maturity Date in an amount equal to the unpaid balance of the Term Loan, if any,
plus interest thereon.

     (S)6.4. ELECTION OF EUROCURRENCY RATE; NOTICE OF ELECTION.
             ------------------------------------------------- 

          (a) With respect to the Term Loan, at the Borrower's option, so long
     as no Default or Event of Default has occurred and is then continuing, the
     Borrower may (i) elect to convert any Base Rate Advance or a portion
     thereof to a Eurocurrency Advance denominated in Dollars, and, (ii) upon
     expiration of the applicable Interest Period, elect to maintain an existing
     Eurocurrency Advance as such, provided that the Borrower gives timely
     notice to the Managing Agent pursuant to (S)6.4(b) hereof. Upon determining
     any Eurocurrency Rate, the Managing Agent shall forthwith provide notice
     thereof to the Borrower and the Lenders, and each such notice to the
     Borrower and the Lenders shall be considered prima facie correct and
     binding, absent manifest error.
 
          (b) With respect to the Term Loan, three (3) Business Days prior to
     the conversion of any Base Rate Advance to a Eurocurrency Advance, or, in
     the case of an outstanding Eurocurrency Advance, the expiration date of the
     applicable Interest Period, an Authorized Signatory of the Borrower shall
     give written, telex or telecopy notice 
<PAGE>
 
                                      -40-

     received by the Managing Agent not later than 2:00 P.M. (Boston time) of
     the Borrower's election pursuant to (S)6.4(a) hereof. Each such notice
     delivered to the Managing Agent shall specify the aggregate principal
     amount of the Term Loan to be maintained as or converted to Eurocurrency
     Advances and the requested duration of the Interest Period that will be
     applicable to such Eurocurrency Advance, and shall be irrevocable and
     binding upon the Borrower. If the Borrower shall fail to give the Managing
     Agent notice of the Borrower's election hereunder together with all of the
     other information required by this (S)6.4(b) with respect to any portion of
     the Term Loan, whether at the end of an Interest Period or otherwise, such
     portion of the Term Loan shall be deemed to be a Base Rate Advance.

     (S)7. PROVISIONS RELATING TO THE MULTICURRENCY LOANS AND REVOLVING CREDIT
           -------------------------------------------------------------------
LOANS.
- ----- 

     (S)7.1. THE NOTES.  The Multicurrency Loans and the Revolving Credit Loans
             --------- 
shall be evidenced by separate promissory notes of the Borrower in substantially
the form of EXHIBIT A hereto (each a "Multicurrency Note") and EXHIBIT D hereto
(each a "Revolving Credit Note") each dated as of the Closing Date and completed
with appropriate insertions. One Multicurrency Note shall be payable to the
order of each Lender in a principal amount equal to such Lender's Commitment
Percentage of the Multicurrency Commitment, and shall represent the obligation
of the Borrower to pay to such Lender such principal amount (or the outstanding
principal amount, if less) plus interest accrued thereon as set forth below. One
Revolving Credit Note shall be payable to the order of each Lender in a
principal amount equal to such Lender's Commitment Percentage of the Revolving
Credit Commitment, and shall represent the obligation of the Borrower to pay to
such Lender such principal amount (or the outstanding principal amount, if less)
plus interest accrued thereon as set forth below. The Borrower irrevocably
authorizes each Lender to make or cause to be made, at or about the time of the
Drawdown Date of any Multicurrency Loan or Revolving Credit Loan or at the time
of receipt of any payment of principal on such Lender's Multicurrency Note or
Revolving Credit Note, an appropriate notation on such Lender's Multicurrency
Note record or Revolving Credit Note record, as the case may be, reflecting the
making of such Loan or (as the case may be) the receipt of such payment. The
outstanding amount of the Multicurrency Loans or Revolving Credit Loans set
forth on such Lender's Multicurrency Note record or Revolving Credit Note
record, as the case may be, shall be prima facie evidence of the principal
amount thereof owing and unpaid to such Lender, but the failure to record, or
any error in so recording, any such amount on such Lender's Multicurrency Note
record or Revolving Credit Note record shall not limit, increase, or otherwise
affect the
<PAGE>
 
                                      -41-

obligations of the Borrower hereunder or under any Multicurrency Note or
Revolving Credit Note to make payments of principal or interest on any
Multicurrency Loans or Revolving Credit Loans advanced to the Borrower and
evidenced by such Multicurrency Note or Revolving Credit Note when due. As of
the Closing Date, all notes held by the Prior Lenders pursuant to the Prior
Credit Agreement shall be deemed to be cancelled, and the Prior Lenders shall
promptly return such cancelled notes to the Borrower.

     (S)7.2. FUNDS FOR REVOLVING CREDIT LOANS AND MULTICURRENCY LOANS.
             -------------------------------------------------------- 

          (a) Not later than 4:30 p.m. (Boston time) on the proposed Drawdown
Date of any Revolving Credit Loan or any Multicurrency Loan, each of the Lenders
will make available to the Managing Agent, at the Managing Agent's Head Office
(in the case of advances in Dollars) or to the Nassau Branch (in the case of
advances in Optional Currencies), in immediately available funds, the amount of
such Lender's Commitment Percentage of the amount of the requested Loan in the
specified currency.  Upon receipt from each Lender of such amount, and upon
receipt of the documents required by (S)(S)13 and 14 and the satisfaction of the
other conditions set forth therein, to the extent applicable, the Managing Agent
or the Nassau Branch, as appropriate, will make available to the Borrower the
aggregate amount of such Loan made available to the Managing Agent or the Nassau
Branch by the Lenders.  The failure or refusal of any Lender to make available
at the aforesaid time and place on any Drawdown Date the amount of its
Commitment Percentage of the requested Loan shall not relieve any other Lender
from its several obligation hereunder to make available to the Managing Agent or
the Nassau Branch, as the case may be, the amount of such other Lender's
Commitment Percentage of any requested Loan.

          (b) In the absence of written notice to the contrary received by the
Managing Agent one (1) Business Day prior to the time the relevant Loan was
requested pursuant to (S)2.3 or (S)5.3 hereof, the Managing Agent or the Nassau
Branch, as appropriate, may assume that each of the Lenders has made available
its ratable portion of the Loans in accordance with (S)2.1 or (S)5.1, as
applicable, and the Managing Agent or the Nassau Branch, as applicable, may (but
it shall not be required to), in reliance upon such assumption, make available
on the relevant Drawdown Date a corresponding amount to the Borrower.  If any
Lender does not make available to the Managing Agent or the Nassau Branch its
Commitment Percentage of the Loans on such Drawdown Date, such Lender shall pay
to the Managing Agent on demand an amount equal to the product of (i) the
average computed for the period referred to in clause (iii) below, of the
weighted 
<PAGE>
 
                                      -42-

average interest rate paid by the Managing Agent for federal funds acquired by
the Managing Agent during each day included in such period, times (ii) the
                                                            -----
amount of such Lender's Commitment Percentage of such Loans, times (iii) a
                                                             ----- 
fraction, the numerator of which is the number of days that elapse from and
including such Drawdown Date to the date on which the amount of such Lender's
Commitment Percentage of such Loans shall become immediately available to the
Managing Agent, and the denominator of which is 360. A statement of the Managing
Agent submitted to such Lender with respect to any amounts owing under this
paragraph shall be prima facie evidence of the amount due and owing to the
Managing Agent by such Lender. If the amount of such Lender's Commitment
Percentage of such Loans is not made available to the Managing Agent or the
Nassau Branch, as appropriate, by such Lender within three (3) Business Days
following such Drawdown Date, the Managing Agent shall be entitled to recover
such amount from the Borrower on demand (but only after demand for payment has
first been made to such Lender), with interest thereon at the rate per annum
applicable to the Loans made on such Drawdown Date, for each day from the date
the Managing Agent shall make such amount available to the Borrower until the
date such amount is paid or prepaid to the Managing Agent or the Nassau Branch,
as the case may be.

     (S)7.3. ELECTION OF EUROCURRENCY RATE; NOTICE OF ELECTION.
             ------------------------------------------------- 

          (a) With respect to the Multicurrency Loans and the Revolving Credit
Loans, at the Borrower's option, so long as no Default or Event of Default has
occurred and is then continuing, the Borrower may (i) elect to convert any Base
Rate Advance or a portion thereof to a Eurocurrency Advance, (ii) at the time of
any request for a Multicurrency Loan or Revolving Credit Loan, specify that such
requested Multicurrency Loan or Revolving Credit Loan shall be a Eurocurrency
Advance, or (iii) upon expiration of the applicable Interest Period, elect to
maintain an existing Eurocurrency Advance as such, provided that the Borrower
gives timely notice to the Managing Agent pursuant to (S)7.3(b) hereof.  Upon
determining any Eurocurrency Rate, the Managing Agent shall forthwith provide
notice thereof to the Borrower and the Lenders, and each such notice to the
Borrower and the Lenders shall be considered prima facie correct and binding,
absent manifest error.
 
          (b) With respect to the Multicurrency Loans and the Revolving Credit
Loans, three (3) Business Days prior to the making of any Multicurrency Loan or
Revolving Credit Loan which is to be a Eurocurrency Advance, or the conversion
of any Base Rate Advance to a Eurocurrency Advance, or, in the case of an
outstanding Eurocurrency Advance, the expiration date of the applicable Interest
Period, the Borrower shall give 
<PAGE>
 
                                      -43-

written, telex or telecopy notice received by the Managing Agent not later than
2:00 p.m. (Boston time) of its election pursuant to (S)7.3(a) hereof. Each such
notice delivered to the Managing Agent shall specify the aggregate principal
amount of the Multicurrency Loans or Revolving Credit Loans to be borrowed or
maintained as or converted to Eurocurrency Advances and the requested duration
of the Interest Period that will be applicable to such Eurocurrency Advance, and
shall be irrevocable and binding upon the Borrower. If the Borrower shall fail
to give the Managing Agent notice of its election hereunder together with all of
the other information required by this (S)7.3(b) with respect to any
Multicurrency Loan or Revolving Credit Loan, whether at the end of an Interest
Period or otherwise, such Multicurrency Loan or Revolving Credit Loan shall be
deemed to be a Base Rate Advance.

     (S)7.4. FACILITY FEE.  The Borrower agrees to pay to the Managing Agent for
             ------------
the account of the Lenders a fee (the "Facility Fee") equal to (a) the
Applicable Facility Rate for the Multicurrency Loans multiplied by the sum of
(i) the Dollar Equivalent of the aggregate outstanding principal amount of
Multicurrency Loans, Competitive Bid Loans, Swing Line Loans and Reimbursement
Obligations plus the Maximum Drawing Amount and (ii) the unused portion, if any,
of the Multicurrency Commitment, plus (b) the Applicable Facility Rate for the
Revolving Credit Loans multiplied by the sum of (i) the aggregate outstanding
principal amount of Revolving Credit Loans or the Term Loan, as the case may be,
and (ii) the unused portion, if any, of the Revolving Credit Commitment. The
Facility Fee shall be payable for the period from (and including) the Closing
Date to (but excluding) the Maturity Date or, if earlier, the date on which the
Total Commitment has been terminated in full and all outstanding amounts
referred to in clauses (a) and (b) of the preceding sentence have been paid in
full (the "Termination Date"). The Facility Fee shall be payable quarterly in
arrears on the first day of each calendar quarter for the immediately preceding
calendar quarter, with payments commencing on January 1, 1998, and on the
Termination Date. The Facility Fee shall be distributed pro rata among the
Lenders in accordance with each Lender's Commitment Percentage.

     (S)8. PROVISIONS RELATING TO ALL LOANS.
           -------------------------------- 

     (S)8.1. INTEREST ON LOANS. The outstanding principal amount of the Loans
             ----------------- 
(other than Competitive Bid Loans) shall bear interest at the rate per annum
equal to the Base Rate plus the Applicable Margin, or, at the Borrower's option
as provided in (S)6.4 and (S)7.3 hereof, at the Eurocurrency Rate plus the
Applicable Margin. Interest with respect to the Loans shall be payable (i)
quarterly in arrears on the last Business Day of each fiscal quarter of each
year on Base Rate Advances, (ii) on the last day of the
<PAGE>
 
                                      -44-

applicable Interest Period, and if such Interest Period is longer than three (3)
months, also on the day of the third month following the beginning of such
Interest Period which corresponds to the day on which such Interest Period began
on Eurocurrency Advances, (iii) on any prepayment date with respect to accrued
interest on amounts prepaid, and (iv) on the Maturity Date and on any date on
which any amounts owing under any of the Loan Documents are declared immediately
due and payable for all Loans. Subject to the provisions of (S)18.10 hereof,
interest payments received by the Managing Agent with respect to the Loans
(other than the Swing Line Loans and Competitive Bid Loans) shall be shared
among the Lenders pro rata in accordance with the outstanding principal amount
of all such Loans made by each Lender to the Borrower.

     (S)8.2. MATURITY OF THE LOANS.  Subject to the terms of (S)6.3 with respect
             ---------------------
to scheduled installments on the Term Loan, the Loans shall be due and payable
on the Maturity Date or on such earlier date on which such Loans become due and
payable pursuant to (S)15 hereof. The Borrower promises to pay on the Maturity
Date or on such earlier date on which the Loans become due and payable all Loans
outstanding on such date, together with any and all accrued and unpaid interest
thereon.

     (S)8.3. INTEREST ON OVERDUE AMOUNTS.  Except as otherwise limited by (S)8.4
             --------------------------- 
hereof, overdue principal and (to the extent permitted by applicable law)
interest on the Loans and all other overdue amounts payable hereunder or under
any of the other Loan Documents (including fees) shall bear interest compounded
monthly and payable on demand at a rate per annum equal to the rate of two (2)
percentage points above the Base Rate until such amount shall be paid in full
(after as well as before judgment).

     (S)8.4. INTEREST LIMITATION.  Notwithstanding any other term of this
             -------------------
Agreement or any Note or any other document referred to herein or therein, the
maximum amount of interest which may be charged to or collected from any Person
liable hereunder or under any Note by the Lenders shall be absolutely limited
to, and shall in no event exceed, the maximum amount of interest which could
lawfully be charged or collected under applicable law (including, to the extent
applicable, the provisions of Section 5197 of the Revised Statutes of the United
States of America, as amended, 12 U.S.C. Section 85, as amended), so that the
maximum of all amounts constituting interest under applicable law, howsoever
computed, shall never exceed as to any Person liable therefor such lawful
maximum, and any term of this Agreement, any Note, or any other document
referred to herein or therein which could be construed as providing for interest
in excess of such lawful maximum shall be and hereby is made expressly subject
to and modified by the provisions of this paragraph.
<PAGE>
 
                                      -45-

     (S)8.5. OPTIONAL REPAYMENTS.  The Borrower shall have the right, at the
             -------------------
Borrower's election, to repay the outstanding amount of the Loans, as a whole or
in part, at any time without penalty or premium (other than the obligation to
reimburse the Lenders and the Agents pursuant to (S)8.12 hereof). The Borrower
shall give notice to the Managing Agent, no later than 2:00 p.m., Boston time,
(a) one day prior to the proposed repayment date of any Base Rate Advances, and
(b) three (3) Eurocurrency Business Days prior to the proposed repayment date of
Eurocurrency Advances, in each case specifying the proposed date of repayment of
Loans, whether such prepayment is to be applied to the Multicurrency Loans, the
Revolving Credit Loans, or the Term Loan, and the principal amount to be repaid.
Each such partial repayment of the Loans shall be $500,000 or a greater integral
multiple of $100,000, and shall be accompanied by the payment of accrued
interest on the principal prepaid to the date of repayment. Unless the Borrower
elects to repay the total aggregate outstanding amount of the Loans, the
Borrower may not elect to make any repayments which would reduce the total
aggregate outstanding amount of the Revolving Credit Loans or the Multicurrency
Loans (calculated at their Dollar Equivalent) to an amount less than $500,000.
Any optional prepayment of principal of the Term Loan shall be applied against
the scheduled installments of principal due in the inverse order of maturity. No
amount repaid with respect to the Term Loan may be reborrowed. Notwithstanding
the foregoing, the Borrower may not prepay any Competitive Bid Loans.

     (S)8.6. MANDATORY REPAYMENTS.  
             --------------------

          (a)  If at any time the aggregate principal amount of the outstanding
     Loans plus the Maximum Drawing Amount (calculating all amounts denominated
     in any Optional Currency at their Dollar Equivalent) shall exceed the Total
     Commitment, whether as a result of fluctuations in currency exchange rates,
     by operation of (S)(S)2.2 or 5.2 or otherwise, the Borrower shall pay
     immediately upon demand made by the Managing Agent all amounts (calculated
     at the Dollar Equivalent) required in order to reduce such amount
     outstanding to the Total Commitment, and, if no Loans are then outstanding,
     shall deposit with the Managing Agent cash collateral in an amount equal to
     the amount by which the Maximum Drawing Amount (calculating all amounts
     denominated in Optional Currencies at their Dollar Equivalent) exceeds the
     Total Commitment.
 
          (b)  If at any time the aggregate principal amount of the outstanding
     Revolving Credit Loans shall exceed the Revolving Credit Commitment,
     whether by operation of (S)5.2 or otherwise, the Borrower shall pay
     immediately upon demand made by the Managing Agent all 
<PAGE>
 
                                      -46-

     amounts required in order to reduce such amount outstanding to the
     Revolving Credit Commitment.

          (c)  If at any time the Dollar Equivalent of the aggregate principal
     amount of the outstanding Multicurrency Loans, Competitive Bid Loans, and
     Swing Line Loans plus the Maximum Drawing Amount shall exceed the
     Multicurrency Commitment, whether as a result of currency exchange rates,
     by operation of (S)2.2 or otherwise, the Borrower shall pay immediately
     upon demand made by the Managing Agent all amounts (calculated at the
     Dollar Equivalent) required in order to reduce such amount outstanding to
     the Multicurrency Commitment, and, if no Loans are then outstanding and the
     Dollar Equivalent of the Maximum Drawing Amount exceeds by $100,000 or more
     the Multicurrency Commitment, the Borrower, shall deposit with the Managing
     Agent cash collateral in an amount equal to the amount by which the Dollar
     Equivalent of the Maximum Drawing Amount exceeds the Multicurrency
     Commitment.

     (S)8.7. APPLICATION OF REPAYMENTS.  All repayments of principal made 
             ------------------------- 
pursuant to (S)8.6 shall be applied, in the absence of instruction by the
Borrower, first to the principal of Base Rate Advances, then to the principal of
Eurocurrency Advances. Each partial repayment shall be allocated among the
Lenders in proportion, as nearly as practicable, to the respective unpaid
aggregate principal amount of each Lender's Loans, with adjustments to the
extent practicable to equalize any prior repayments not exactly in proportion.

     (S)8.8. PAYMENTS.
             -------- 

          (a) All payments of principal and interest (i) on Loans denominated in
     Dollars, together with Facility Fees and any other amounts due hereunder,
     shall be made by the Borrower to the Managing Agent in immediately
     available funds in Dollars at the Managing Agent's Head Office or (ii) on
     Loans denominated in any Optional Currency shall be made in immediately
     available funds in such Optional Currency at the Nassau Branch's office.
     The Managing Agent shall be entitled to debit the Borrower's accounts with
     the Managing Agent or the Nassau Branch in the amount of each such payment
     when due in order to effect timely payment thereof.  The Managing Agent
     will, promptly after its receipt thereof, transfer in immediately available
     funds, as applicable, to (1) each of the Lenders their pro rata portion of
     such payment in accordance with their respective Commitment Percentages in
     the case of payments with respect to Multicurrency Loans, Revolving Credit
     Loans, and Letters 
<PAGE>
 
                                      -47-

     of Credit, (2) BKB in the case of payments with respect to Swing Line
     Loans, and (3) to the appropriate Lender(s) in the case of payments with
     respect to Competitive Bid Loans.

          (b) All payments by the Borrower hereunder and under any of the other
     Loan Documents shall be made without setoff or counterclaim and free and
     clear of and without deduction for any taxes, levies, imposts, duties,
     charges, fees, deductions, withholdings, compulsory loans, restrictions or
     conditions of any nature now or hereafter imposed or levied by any
     jurisdiction or any political subdivision thereof or taxing or other
     authority therein unless the Borrower is compelled by law to make such
     deduction or withholding.  If any such obligation is imposed upon the
     Borrower with respect to any amount payable by the Borrower hereunder or
     under any of the other Loan Documents, the Borrower will pay to the
     Managing Agent, on the date on which such amount is due and payable
     hereunder or under such other Loan Document, such additional amount in
     Dollars as shall be necessary to enable the Lenders to receive the same net
     amount which the Lenders would have received on such due date had no such
     obligation been imposed upon the Borrower.  The Borrower will deliver
     promptly to the Managing Agent certificates or other valid vouchers for all
     taxes or other charges deducted from or paid with respect to payments made
     by the Borrower hereunder or under such other Loan Document.  The
     provisions of this (S)8.8(b) shall survive repayment of the Obligations and
     termination of this Agreement.

          (c) Each Lender that is not incorporated under the laws of the United
     States of America or a state thereof or the District of Columbia (a "Non-
     U.S. Lender") agrees that, prior to the first date on which any payment is
     due to it hereunder, it will deliver to the Borrower and the Managing Agent
     two duly completed copies of United States Internal Revenue Service Form
     1001 or 4224 or successor applicable form, as the case may be, certifying
     in each case that such Non-U.S. Lender is entitled to receive payments from
     the Borrower under this Agreement and the Notes payable to it, without
     deduction or withholding of any United States federal income taxes.  Each
     Non-U.S. Lender that so delivers a Form 1001 or 4224 pursuant to the
     preceding sentence further undertakes to deliver to the Borrower and the
     Managing Agent two further copies of Form 1001 or 4224 or successor
     applicable form, or other manner of certification, as the case may be, on
     or before the date that any such letter or form expires or becomes obsolete
     or after the occurrence of any event requiring a change in the most recent
     form previously delivered by it to the Borrower and the Managing Agent, and
     such extensions or 
<PAGE>
 
                                      -48-

     renewals thereof as may reasonably be requested by the Borrower and the
     Managing Agent, certifying in the case of a Form 1001 or 4224 that such 
     Non-U.S. Lender is entitled to receive payments under this Agreement and
     the Notes without deduction or withholding of any United States federal
     income taxes, unless in any such case an event (including, without
     limitation, any change in treaty, law or regulation) has occurred prior to
     the date on which any such delivery would otherwise be required which
     renders all such forms inapplicable or which would prevent such Non-U.S.
     Lender from duly completing and delivering any such form with respect to it
     and such Non-U.S. Lender advises the Borrower that it is not capable of
     receiving payments without any deduction or from the Borrower withholding
     of United States federal income tax.

     (S)8.9. COMPUTATIONS.  All computations of interest with respect to Base
             ------------ 
Base Rate Advances shall be based on a 365-day year and paid for the actual
number of days elapsed. All other computations of interest, Facility Fees,
Letter of Credit Fees, or other fees shall be based on a 360-day year and paid
for the actual number of days elapsed. Whenever a payment hereunder or under any
of the other Loan Documents becomes due on a day that is not a Business Day, the
due date for such payment shall be extended to the next succeeding Business Day,
and interest shall accrue during such extension; provided that any Interest
Period for any Eurocurrency Advance or LIBOR Competitive Bid Loan which ends on
a day that is not a Eurocurrency Business Day shall end on the next succeeding
Eurocurrency Business Day unless the result of such extension would be to carry
such Interest Period into another calendar month, in which event such Interest
Period shall end on the immediately preceding Eurocurrency Business Day. If any
sum due from the Borrower under this Agreement or any order or judgment given or
made in relation hereto has to be converted from the currency in which the same
is payable hereunder or under such order or judgment into another currency for
the purpose of (a) making or filing a claim or proof against the Borrower, (b)
obtaining an order or judgment in any court or other tribunal, or (c) or
enforcing any order or judgment given or made in relation hereto, the Borrower
shall indemnify and hold harmless each of the Persons to whom such sum is due
from and against any loss suffered as a result of any discrepancy between the
rate of exchange used for such purpose to convert the sum in question from the
first currency into such other currency and the rate or rates of exchange at
which such Person may in the ordinary course of business purchase the first
currency with such other currency upon receipt of a sum paid to it in
satisfaction, in whole or in part, of any such order, judgment, claim or proof.
<PAGE>
 
                                      -49-

    (S)8.10. ADDITIONAL COSTS, ETC.  If any present or future applicable law,
             ---------------------
which expression, as used herein, includes statutes, rules and regulations
thereunder and interpretations thereof by any competent court or by any
governmental or other regulatory body or official charged with the
administration or the interpretation thereof and requests, directives,
instructions and notices at any time or from time to time hereafter made upon or
otherwise issued to the any Lender or any Agent by any central bank or other
fiscal, monetary or other authority (whether or not having the force of law),
shall:
 
          (a) subject any Lender or any Agent to any tax, levy, impost, duty,
     charge, fee, deduction or withholding of any nature with respect to this
     Agreement, the other Loan Documents, the Total Commitment, the
     Multicurrency Commitment, the Revolving Credit Commitment, the Letters of
     Credit, the Loans (other than taxes imposed by any jurisdiction in which
     any Lender's or any Agent's head office is located and based upon or
     measured by the income or profits of such Lender or such Agent); or
 
          (b) materially change the basis of taxation (except for changes in
     taxes on income or profits) of payments to any Lender of the principal or
     of the interest on any Loans or any other amounts payable to any Lender or
     any Agent under this Agreement or the other Loan Documents; or
 
          (c) impose or increase or render applicable (other than to the extent
     specifically provided for elsewhere in this Agreement) any special deposit,
     reserve, assessment, liquidity, capital adequacy or other similar
     requirements (whether or not having the force of law) against assets held
     by, or deposits in or for the account of, or loans by, or commitments of,
     an office of any Lender or any Agent; or
 
          (d) impose on any Lender or any Agent any other conditions or
     requirements with respect to this Agreement, the other Loan Documents, the
     Loans, the Letters of Credit, the Total Commitment, the Multicurrency
     Commitment, the Revolving Credit Commitment, or any class of loans or
     commitments of which any of the Loans, the Multicurrency Commitment, the
     Revolving Credit Commitment, or the Total Commitment forms a part, and the
     result of any of the foregoing is
 
          (i) to increase the cost to any Lender or any Agent of making,
          funding, issuing, renewing, extending or maintaining the Loans, the
          Letters of Credit, the Letter of Credit Participations, the
<PAGE>
 
                                      -50-

          Multicurrency Commitment, the Revolving Credit Commitment, or the
          Total Commitment;
 
          (ii) to reduce the amount of principal, interest or other amount
          payable to any Lender or any Agent hereunder on account of the Total
          Commitment, the Multicurrency Commitment, the Revolving Credit
          Commitment, the Letters of Credit, the Letter of Credit
          Participations, or the Loans;
 
          (iii) to require any Lender or any Agent to make any payment or to
          forego any interest or other sum payable hereunder, the amount of
          which payment or foregone interest or other sum is calculated by
          reference to the gross amount of any sum receivable or deemed received
          by the any Lender or any Agent from the Borrower hereunder,
 
then, and in each such case, the Borrower will, upon demand made by such Lender
or such Agent at any time and from time to time and as often as the occasion
therefor may arise, pay to such Lender or such Agent such additional amounts as
will be sufficient to compensate such Lender or such Agent for such additional
cost, reduction, payment or foregone interest or other sum (after such Lender or
such Agent shall have allocated the same fairly and equitably among all
customers of any class generally affected thereby).  The provisions of this
(S)8.10 shall survive repayment of the Obligations and termination of this
Agreement.

     (S)8.11. CAPITAL ADEQUACY.  If any present or future applicable law,
              ---------------- 
governmental rule, regulation, policy, guideline or directive (whether or not
having the force of law) or the interpretation thereof by a court or
governmental authority with appropriate jurisdiction affects the amount of
capital required or expected to be maintained by any Lender or any Agent, or any
corporation controlling such Lender or such Agent, and such Lender or such Agent
determines that the amount of capital required to be maintained by it is
increased by or based upon such Lender's commitment to make, or maintenance of,
Loans or Letter of Credit Participations hereunder, then such Lender or such
Agent may notify the Borrower of such fact. To the extent that the costs of such
increased capital requirements are not reflected in the Base Rate, the Borrower
and such Lender or such Agent shall thereafter attempt to negotiate in good
faith, within thirty (30) days of the day on which the Borrower
<PAGE>
 
                                      -51-

receives such notice, an adjustment payable hereunder that will adequately
compensate such Lender or such Agent in light of these circumstances. If the
Borrower and such Lender or such Agent or any corporation controlling such
Lender or such Agent are unable to agree to such adjustment within thirty (30)
days of the date on which the Borrower receives such notice, then commencing on
the date of such notice (but not earlier than the effective date of any such
increased capital requirement), the fees payable hereunder shall increase by an
amount that will, in such Lender's or such Agent's reasonable determination,
provide adequate compensation to such Lender or such Agent or any corporation
controlling such Lender or such Agent, such amount to be considered prima facie
correct and binding, absent manifest error. Such Lender or such Agent shall
allocate such cost increases among its customers in good faith and on an
equitable basis. The provisions of this (S)8.11 shall survive repayment of the
Obligations and termination of this Agreement.

     (S)8.12. EUROCURRENCY AND COMPETITIVE BID INDEMNITY.  The Borrower agrees
              ------------------------------------------
to indemnify each Lender and each Agent and to hold them harmless from and
against any loss, cost or expenses (including loss of anticipated profits
directly related to the circumstances described below) that such Lender or such
Agent may sustain or incur as a consequence of a failure of the Borrower to
satisfy any condition precedent to the making of any Loan or any default by the
Borrower in making a borrowing or conversion or continuation after the Borrower
has given (or is deemed to have given) notice pursuant to (S)2.3, (S)2.4,
(S)4.7, (S)5.3, (S)6.4, or (S)7.3 hereof, or the making of any payment of a
Eurocurrency Advance or LIBOR Competitive Bid Loan or the making of or any
conversion of any such Eurocurrency Advance to a Base Rate Advance on a day that
is not the last day of the applicable Interest Period with respect thereto,
including interest or fees payable by the Lenders to lenders of funds obtained
by them in order to maintain any such Eurocurrency Advance or Loans. The Lenders
and the Agent shall deliver to the Borrower a certificate setting forth any
amounts owing pursuant to this (S)8.12, such amounts to be considered prima
facie correct and binding, absent manifest error. The provisions of this (S)8.12
shall survive repayment of the Obligations and termination of this Agreement.

     (S)8.13. ILLEGALITY; INABILITY TO DETERMINE EUROCURRENCY RATE.
              ---------------------------------------------------- 

     (a) Notwithstanding any other provision of this Agreement, if (i) the
introduction of, any change in, or any change in the interpretation of, any law
or regulation applicable to any Lender or any Agent shall make it unlawful, or
any central bank or other governmental authority having jurisdiction thereof
shall assert that it is unlawful, for such Lender or such Agent to perform its
obligations in respect of any Eurocurrency Advances, or (ii) if any Lender or
any Agent shall reasonably determine with respect to Eurocurrency Advances that
(x) by reason of circumstances affecting any Eurocurrency interbank market,
adequate and reasonable methods do not exist for ascertaining the Eurocurrency
Rate which would otherwise be 
<PAGE>
 
                                      -52-

applicable during any Interest Period, or (y) deposits of Dollars or Optional
Currencies, as applicable, in the relevant amount for the relevant Interest
Period are not available to the Lenders or the Agents in any Eurocurrency
interbank market, or (z) the Eurocurrency Rate does not or will not accurately
reflect the cost to such Lender or such Agent of obtaining or maintaining the
applicable Eurocurrency Advances during any Interest Period, then the Managing
Agent shall promptly give telephonic, telex or cable notice of such
determination to the Borrower (which notice shall be conclusive and binding upon
the Borrower).

     (b) With respect to Multicurrency Loans denominated in Dollars,
Revolving Credit Loans, and any portion of the Term Loan bearing interest by
reference to the Eurocurrency Rate, upon such notification by the Managing Agent
given in accordance with (S)8.13(a) hereof, the obligation of the Lenders to
make Eurocurrency Advances available shall be suspended until the Lenders
determine that such circumstances no longer exist, and the outstanding
Eurocurrency Advances shall continue to bear interest at the applicable rate
based on the Eurocurrency Rate until the end of the applicable Interest Period,
and thereafter shall be deemed converted to Base Rate Advances in equal
principal amounts.

     (c) With respect to Multicurrency Loans denominated in an Optional Currency
requested to be made, maintained, or converted while the circumstances described
in (S)8.13(a) are continuing, upon such notification by the Managing Agent given
in accordance with (S)8.13(a) hereof, the Managing Agent shall substitute a one-
month Interest Period for the Interest Period requested by the Borrower, and
shall calculate interest on the principal amount of such Multicurrency Loan by
substituting for the Multicurrency Rate the rate per annum determined by the
Managing Agent in consultation with the Lenders to be that which fairly
expresses as a percentage per annum the cost to the Lenders (acting in good
faith in consideration of all relevant factors, including, but not limited to,
the minimization of such costs where feasible) of funding such principal amount
in the requested Optional Currency during such alternative Interest Period, as
certified by the Managing Agent to the Borrower and the Lenders upon
determination thereof. Upon receipt of notice of such alternative interest rate,
the Borrower may refuse to accept such Multicurrency Loan. The Borrower shall,
forthwith on demand, indemnify each Lender against any liability in respect of
funds contracted for or otherwise acquired which such Lender incurs as a
consequence of the Borrower's refusal to borrow any Multicurrency Loan pursuant
to the provisions of this (S)8.13(c). Subject to the terms and conditions of the
previous sentence, the Borrower may request that such Multicurrency Loan be
denominated in Dollars or in an Optional Currency not affected by the
circumstances described in (S)8.13(a).
<PAGE>
 
                                      -53-

     (S)8.14. REASONABLE EFFORTS TO MITIGATE.  Each Lender agrees that as
              ------------------------------
promptly as practicable after it becomes aware of the occurrence of an event or
the existence of a condition that would cause it to be affected under
(S)(S)8.10, 8.11 or 8.13, such Lender will give notice thereof to the Borrower,
with a copy to the Managing Agent and, to the extent so requested by the
Borrower and not inconsistent with such Lender's internal policies, such Lender
shall use reasonable efforts and take such actions as are reasonably appropriate
if as a result thereof the additional moneys which would otherwise be required
to be paid to such Lender pursuant to such sections would be materially reduced,
or the illegality or other adverse circumstances which would otherwise require a
conversion of such Loans or result in the inability to make such Loans pursuant
to such sections would cease to exist, and in each case if, as determined by
such Lender in its sole discretion, the taking such actions would not adversely
affect such Loans or such Lender or otherwise be disadvantageous to such Lender.

     (S)8.15. REPLACEMENT OF LENDERS.  If any Lender (an "Affected Lender") (i)
              ----------------------
makes demand upon the Borrower for (or if the Borrower is otherwise required to
pay) amounts pursuant to (S)(S)8.10 or 8.11, (ii) is unable to make or maintain
Eurocurrency Advances as a result of a condition described in (S)8.13, (iii)
does not agree to extend the Term Out Date pursuant to the Borrower's request
under (S)5.4, or (iv) defaults in its obligation to make Loans or to participate
in Letters of Credit in accordance with the terms of this Agreement, the
Borrower may, within 90 days of receipt of such demand, notice (or the
occurrence of such other event causing the Borrower to be required to pay such
compensation or causing (S)8.13 to be applicable), or default, or upon the
Borrower's or Managing Agent's knowledge of a Lender's non-consent to a
requested extension of the Term Out Date, as the case may be, by notice in
writing to the Managing Agent and such Affected Lender (a "Replacement Notice")
(A) obtain a replacement bank satisfactory to the Managing Agent and the
Borrower (the "Replacement Lender"); (B) request the non-Affected Lenders to
acquire and assume all of the Affected Lender's Loans and Commitment, and to
participate in Letters of Credit as provided herein, but none of such Lenders
shall be under an obligation to do so; (C) designate a Replacement Lender
reasonably satisfactory to the Managing Agent; or (D) remove the Affected Lender
from the syndication group by repaying in full the Affected Lender's outstanding
Loans (with accrued interest thereon), cash collateralizing any outstanding
Letters of Credit issued by such Lender, and paying any fees owing to such
Lender at such time, whereupon the Total Commitment shall be correspondingly
reduced and the Lender's Commitment Percentages shall be correspondingly
adjusted. If any satisfactory Replacement Lender shall be obtained, and/or any
of the non-Affected Lenders shall agree to acquire and assume all of the
Affected Lender's Loans and Commitment, and to participate in Letters of<PAGE>
<PAGE>
 
                                      -54-

Credit then such Affected Lender shall, so long as no Event of Default shall
have occurred and be continuing, assign, in accordance with (S)22, all of its
Commitment, Loans, Notes and other rights and obligations under this Agreement
and all other Loan Documents to such Replacement Lender or non-Affected Lenders,
as the case may be, in exchange for payment of the principal amount so assigned
and all interest and fees accrued on the amount so assigned, plus all other
Obligations then due and payable to the Affected Lender; provided, however, that
(x) such assignment shall be without recourse, representation or warranty and
shall be on terms and conditions reasonably satisfactory to such Affected Lender
and such Replacement Lender and/or non-Affected Lenders, as the case may be, and
(y) prior to any such assignment, the Borrower shall have paid to such Affected
Lender all amounts properly demanded and unreimbursed under (S)(S)8.10, 8.11 and
8.12. Upon the effective date of such assignment, the Borrower shall issue
replacement Notes to such Replacement Lender and/or non-Affected Lenders, as the
case may be, and such Replacement Lender shall become a "Lender" for all
purposes under this Agreement and the other Loan Documents.

     (S)8.16. RESENTATIONS AND WARRANTIES UPON LOAN REQUEST.  Each request for
              ---------------------------------------------
Loans or for the issuance, extension or renewal of a Letter of Credit hereunder
shall constitute a representation by the Borrower that the conditions set forth
in (S)(S)13 and 14 hereof, as the case may be, have been satisfied on the date
of such request and will continue to be satisfied on the Drawdown Date of such
Loan or the date of issuance, extension or renewal of the Letter of Credit. Each
of the representations and warranties made by or on behalf of the Borrower to
the Agents and the Lenders in this Agreement or any other Loan Document or any
statement, instrument, document, or certificate delivered in connection
therewith shall be true and correct in all material respects when made and
shall, for all purposes of this Agreement, be deemed to be repeated by the
Borrower on and as of the date of the submission of any Loan Request,
Competitive Bid Quote Request or request for a Letter of Credit or an extension
or renewal thereof and on and as of the Drawdown Date of any Loan or the date of
issuance, extension, or renewal of such Letter of Credit (except to the extent
of changes resulting from transactions contemplated or permitted by this
Agreement and the other Loan Documents, and changes occurring in the ordinary
course of business or disclosed in the financial statements and other
information delivered to the Lenders pursuant to (S)10.4 hereof that singly or
in the aggregate are not materially adverse, and to the extent that such
representations and warranties expressly relate solely to an earlier date).
<PAGE>
 
                                      -55-

     (S)8.17. LIMITATIONS ON INTEREST PERIODS.  Notwithstanding anything
              -------------------------------
contained herein to the contrary, the Borrower may not at any time select an
Interest Period which would extend beyond the Maturity Date. The Borrower may
not have more than twelve (12) different maturities of Eurocurrency Advances
outstanding at any one time.

     (S)9. REPRESENTATIONS AND WARRANTIES.  The Borrower represents and warrants
           ------------------------------ 
to the Lenders and the Agents as follows:

     (S)9.1. CORPORATE AUTHORITY.
             ------------------- 

          (a) INCORPORATION; GOOD STANDING.  The Borrower and each of its
              ----------------------------                               
     Subsidiaries (i) is duly organized, validly existing and in good standing
     under the laws of its jurisdiction of incorporation, (ii) has all requisite
     power to own its property and conduct its business as now conducted and as
     presently contemplated, except where a failure to have such power would not
     have a material adverse effect on the business, assets, or financial
     condition of the Borrower and its Subsidiaries taken as a whole, and (iii)
     is in good standing as a foreign corporation and is duly authorized to do
     business in each jurisdiction in which its property or business as
     presently conducted or contemplated makes such qualification necessary,
     except where a failure to be so qualified would not have a material adverse
     effect on the business, assets or financial condition of the Borrower and
     its Subsidiaries taken as a whole.
 
          (b) AUTHORIZATION.  The execution, delivery and performance of the
              -------------                                                 
     Loan Documents and the transactions contemplated hereby and thereby (i) are
     within the authority of the Borrower, (ii) have been duly authorized by all
     necessary corporate, partnership, membership, or other proceedings, (iii)
     do not materially conflict with or result in any material breach or
     contravention of any provision of law, statute, rule or regulation to which
     the Borrower is subject or any judgment, order, writ, injunction, license
     or permit applicable to the Borrower so as to materially adversely affect
     the assets, business or any activity of the Borrower and its Subsidiaries
     taken as a whole, (iv) do not conflict with any provision of the corporate
     charter, bylaws, or other organizational documents of the Borrower or any
     agreement or other instrument binding upon the Borrower, and (v) will not
     create a lien on any properties of the Borrower.
 
          (c) ENFORCEABILITY.  The execution, delivery and performance of the
              --------------                                                 
     Loan Documents will result in valid and legally binding obligations of the
     Borrower, enforceable against the Borrower in 
<PAGE>
 
                                      -56-

     accordance with the respective terms and provisions hereof and thereof,
     except as limited by bankruptcy, insolvency, reorganization, moratorium or
     other laws relating to or affecting generally the enforcement of creditors'
     rights, and except to the extent that availability of the remedy of
     specific performance or injunctive relief is subject to the discretion of
     the court before which any proceeding therefor may be brought.

     (S)9.2. GOVERNMENTAL APPROVALS.  The execution, delivery and performance by
             ----------------------
the Borrower of the Loan Documents and the transactions contemplated hereby and
thereby do not require any approval or consent of, or filing with, any
governmental agency or authority other than those already obtained and which are
in full force and effect.

     (S)9.3. TITLE TO PROPERTIES; LEASES.  The Borrower and its Subsidiaries own
             --------------------------- 
all of their respective assets reflected in the consolidated balance sheet of
the Borrower as at the Balance Sheet Date or acquired since that date (except
property and assets sold or otherwise disposed of in the ordinary course of
business since that date), subject to no mortgages, capitalized leases,
conditional sales agreements, title retention agreements, liens or other
encumbrances except Permitted Liens.

     (S)9.4. FINANCIAL STATEMENTS; SOLVENCY.  
             ------------------------------ 

          (a) There have been furnished to each of the Lenders a consolidated
     balance sheet of the Borrower dated the Balance Sheet Date, and a
     consolidated statement of operations for the fiscal year then ended,
     certified by KPMG Peat Marwick, L.L.P. or by other independent certified
     public accountants satisfactory to the Managing Agent (the "Accountants").
     There have also been furnished to each of the Lenders a consolidated
     unaudited balance sheet of the Borrower dated June 30, 1997.  Such balance
     sheets and statements of operations have been prepared in accordance with
     GAAP and fairly present the financial condition of the Borrower on a
     consolidated basis as at the close of business on the date thereof and the
     results of operations for the period then ended.  There are no contingent
     liabilities of the Borrower or any of its Subsidiaries as of such dates
     involving material amounts, known to the officers of the Borrower or its
     Subsidiaries not disclosed in said financial statements and the related
     notes thereto.  Since the Balance Sheet Date, the Borrower and its
     Subsidiaries have not incurred any liabilities other than in the ordinary
     course of business or as permitted by (S)11.1 hereof.
<PAGE>
 
                                      -57-

          (b) The Borrower on a consolidated basis (both before and after giving
     effect to the transactions contemplated by this Agreement) is solvent, has
     assets having a fair value in excess of the amount required to pay its
     probable liabilities on its existing debts as they become absolute and
     matured, and has, and will have at the time of any borrowing hereunder,
     access to adequate capital for the conduct of its business and the ability
     to pay its debts from time to time incurred in connection therewith as such
     debts mature.

     (S)9.5. NO MATERIAL CHANGES, ETC.  Since the Balance Sheet Date, there have
             ------------------------
occurred no material adverse changes in the financial condition or business of
the Borrower on a consolidated basis, as shown on or reflected in the
consolidated balance sheet of the Borrower as at the Balance Sheet Date, or the
consolidated statement of operations for the fiscal year then ended, other than
changes in the ordinary course of business or as described in the 10-Qs or 10-K
of the Borrower filed with the United States Securities and Exchange Commission
prior to the Closing Date (the "SEC Filings"), which have not had any material
adverse effect either individually or in the aggregate on the business or
financial condition of the Borrower on a consolidated basis. Since the Balance
Sheet Date, there has not been any Distribution by the Borrower except as
permitted by (S)11.5 hereof.

     (S)9.6. FRANCHISES, PATENTS, COPYRIGHTS, ETC.  The Borrower and its
             ------------------------------------
Subsidiaries possess all franchises, patents, copyrights, trademarks, trade
names, licenses and permits (including, but not limited to, environmental
permits), and rights in respect of the foregoing, adequate for the conduct of
their business substantially as now conducted without known conflict with any
rights of others, except as would not have a material adverse effect on the
business, operations, or financial condition of the Borrower and its
Subsidiaries taken as a whole.

     (S)9.7. LITIGATION.  There are no actions, suits, proceedings or
             ----------
investigations of any kind pending or threatened against the Borrower or any of
its Subsidiaries before any court, tribunal or administrative agency or board
which, if adversely determined, might, either in any case or in the aggregate,
materially adversely affect the properties or business of the Borrower and its
Subsidiaries taken as a whole, or materially impair the right of the Borrower
and its Subsidiaries taken as a whole to carry on business substantially as now
conducted, or which question the validity of any of the Loan Documents, or any
action taken or to be taken pursuant hereto or thereto.

     (S)9.8. NO MATERIALLY ADVERSE CONTRACTS, ETC.  The Borrower and its
             ------------------------------------
Subsidiaries are not subject to any charter, corporate or other legal
<PAGE>
 
                                      -58-

restriction, or any judgment, decree, order, rule or regulation which in the
judgment of the Borrower's officers has or is expected in the future to have a
materially adverse effect on the business, assets or financial condition of the
Borrower and its Subsidiaries taken as a whole. The Borrower and its
Subsidiaries are not party to any contract or agreement which in the judgment of
the Borrower's officers has or is expected to have any materially adverse effect
on the business of the Borrower and its Subsidiaries are not, except as
otherwise reflected in adequate reserves.

     (S)9.9. COMPLIANCE WITH OTHER INSTRUMENTS, LAWS, ETC.  The Borrower and its
             --------------------------------------------
Subsidiaries are not violating any provision of their charter documents or
bylaws or any agreement or instrument to which they are or may be subject or by
which they or any of their properties may be bound or any decree, order,
judgment, or any statute, license, rule or regulation, in a manner which could
result in the imposition of substantial penalties or materially and adversely
affect the financial condition, properties or business of the Borrower and its
Subsidiaries taken as a whole.

     (S)9.10. TAX STATUS.  The Borrower and its Subsidiaries have made or filed
              ----------
all federal and state income and all other tax returns, reports and declarations
required by any jurisdiction to which they are subject (unless and only to the
extent that (a) the Borrower has set aside on its books provisions reasonably
adequate for the payment of all unpaid taxes, and (b) the failure to so file
would not have a material adverse effect on the financial condition, properties,
or business of the Borrower and its Subsidiaries taken as a whole); and have
paid all taxes and other governmental assessments and charges that are material
in amount, shown or determined to be due on such returns, reports and
declarations, except those being contested in good faith; and have set aside on
the Borrower's or respective Subsidiary's books provisions reasonably adequate
for the payment of all taxes for periods subsequent to the periods to which such
returns, reports or declarations apply. There are no unpaid taxes in any
material amount claimed to be due by the taxing authority of any jurisdiction.

     (S)9.11. NO EVENT OF DEFAULT.  No Default or Event of Default has occurred
              -------------------
     and is continuing. 

     (S)9.12. HOLDING COMPANY AND INVESTMENT COMPANY ACTS.  Neither the Borrower
              -------------------------------------------
or any of its Subsidiaries is a "holding company," or a "subsidiary company" of
a "holding company," or an "affiliate" of a "holding company," as such terms are
defined in the Public Utility Holding Company Act of 1935; nor are any of them a
"registered investment company," or an "affiliated company" or a "principal
underwriter" of a 
<PAGE>
 
                                      -59-

"registered investment company," as such terms are defined in the Investment
Company Act of 1940, as amended.

     (S)9.13. ABSENCE OF FINANCING STATEMENTS, ETC.  Except as permitted by
              ------------------------------------
(S)11.2 of this Agreement, there is no financing statement, security agreement,
chattel mortgage, real estate mortgage or other document filed or recorded with
any filing records, registry, or other public office, which purports to cover,
affect or give notice of any present or possible future lien on, or security
interest in, any assets or property of the Borrower and its Subsidiaries or
rights thereunder.

     (S)9.14. CERTAIN TRANSACTIONS.  Except as set forth in the SEC Filings, and
              --------------------
except as would not be considered material under the rules and regulations of
the United States Securities and Exchange Commission, none of the officers,
directors, or employees of the Borrower or any of its Subsidiaries is presently
a party to any transaction with the Borrower or Subsidiary including, without
limitation, any contract, agreement or other arrangement providing for the
furnishing of services to or by, providing for rental of real or personal
property to or from, or otherwise requiring payments to or from any officer,
director or such employee or, to the knowledge of the Borrower and its
Subsidiaries any corporation, partnership, trust or other entity in which any
officer, director, or any such employee has a substantial interest or is an
officer, director, trustee or partner.

     (S)9.15. EMPLOYEE BENEFIT PLANS.  Each of the Borrower and its Subsidiaries
              ----------------------
is in substantial compliance with all material provisions of ERISA, except to
the extent that any failure so to be in compliance with any provisions of ERISA
has not had and could not reasonably be expected to materially and adversely
affect the financial condition, properties or business of the Borrower and its
Subsidiaries taken as a whole.

     (S)9.16. USE OF PROCEEDS.  
              --------------- 

          (S)9.16.1. GENERAL.  The proceeds of the Loans may be used to
                     -------
refinance existing Indebtedness of the Borrower and its Subsidiaries and to pay
fees and other transaction costs associated therewith, to finance acquisitions
permitted hereunder, and for working capital and other general corporate
purposes.

          (S)9.16.2. REGULATIONS U AND X.  No portion of any Loan is to be used,
                     -------------------
and no portion of any Letter of Credit is to be obtained, for the purpose of
purchasing or carrying any "margin security" or "margin stock" as such terms are
used in Regulations U and X of the Board of Governors of the Federal Reserve
System, 12 C.F.R. Parts 221 and 224.
<PAGE>
 
                                      -60-

     (S)9.17. ENVIRONMENTAL COMPLIANCE.  Except with respect to any matters
              ------------------------
which would not be deemed to be material pursuant to the regulations of the
United States Securities and Exchange Commission and for those matters which are
set forth in the SEC Filings:

          (a) Neither the Borrower nor any of its Subsidiaries nor any operator
     of their properties is in violation, or alleged violation, of any judgment,
     decree, order, law, license, rule or regulation pertaining to environmental
     matters, including without limitation, those arising under Environmental
     Laws, which violation would have a material adverse effect on the
     environment or the business, assets or financial condition of the Borrower
     and its Subsidiaries, taken as a whole.

          (b) Neither the Borrower nor any of its Subsidiaries has received
     written notice from any third party including, without limitation: any
     federal, state or local governmental authority, (i) that any one of them
     has been identified by the United States Environmental Protection Agency
     ("EPA") as a potentially responsible party under CERCLA with respect to a
     site listed on the National Priorities List, 40 C.F.R. Part 300 Appendix B;
     (ii) that any Hazardous Substances which any one of them has generated,
     transported or disposed of has been found at any site at which a federal,
     state or local agency or other third party has conducted or has ordered
     that any of them conduct a remedial investigation, removal or other
     response action pursuant to any Environmental Law; or (iii) that it is or
     shall be a named party to any claim, action, cause of action, complaint,
     legal or administrative proceeding arising out of any third party's
     incurrence of costs, expenses, losses or damages of any kind whatsoever in
     connection with the release of Hazardous Substances.

     (S)9.18. TRUE COPIES OF CHARTER AND OTHER DOCUMENTS.  The Borrower has
              ------------------------------------------
furnished each of the Lenders with copies, in each case true and complete as of
the Closing Date, of (a) its charter and other incorporation and organizational
documents (together with any amendments thereto) and (b) its by-laws (together
with any amendments thereto).

     (S)10. AFFIRMATIVE COVENANTS OF THE BORROWER.  The Borrower covenants and
            -------------------------------------
agrees that, so long as any Loan, any Letter of Credit, any Reimbursement
Obligation, or any Note is outstanding or any Lender has any obligation to make
Loans or any Issuing Lender has any obligation to issue, extend, renew or honor
any Letters of Credit hereunder:

     (S)10.1 PUNCTUAL PAYMENT.  The Borrower will duly and punctually pay or
             ----------------
cause to be paid the principal and interest on the Loans, all 
<PAGE>
 
                                      -61-

Reimbursement Obligations, and all fees and other amounts provided for in this
Agreement and the other Loan Documents, all in accordance with the terms of this
Agreement and such other Loan Documents.

     (S)10.2.  MAINTENANCE OF U.S. OFFICE. The Borrower will, maintain its chief
               -------------------------- 
executive offices at Palm Desert, California, or at such other place in the
United States of America as the Borrower shall designate upon 30 days' prior
written notice to the Managing Agent.

     (S)10.3.  RECORDS AND ACCOUNTS. The Borrower will and will cause each of
               -------------------- 
its Subsidiaries to (i) keep true and accurate records and books of account in
which full, true and correct entries will be made in accordance with GAAP and
with the requirements of all regulatory authorities, and (ii) maintain adequate
accounts and reserves for all taxes (including income taxes), depreciation,
depletion, obsolescence and amortization of their properties, all other
contingencies, and all other proper reserves in accordance with GAAP or as
required by applicable regulatory authorities.

     (S)10.4.  FINANCIAL STATEMENTS, CERTIFICATES AND INFORMATION. The Borrower
               -------------------------------------------------- 
will deliver to each of the Lenders:
 
               (a)  as soon as practicable, but, in any event not later than 90
     days after the end of each fiscal year of the Borrower, the consolidated
     balance sheet of the Borrower as at the end of such year, consolidated
     income statement, and consolidated statement of cash flows, each setting
     forth in comparative form the amounts for the previous fiscal year, all
     such consolidated statements to be in reasonable detail, prepared in
     accordance with GAAP, and certified without qualification by the
     Accountants;
     
               (b)  as soon as practicable, but in any event not later than (i)
     45 days after the end of each of the first three fiscal quarters of each
     fiscal year of the Borrower, and (ii) 90 days after the end of the last
     fiscal quarter of each fiscal year, copies of the unaudited consolidated
     balance sheet, income statement and statement of cash flows of the Borrower
     as at the end of such quarter and for the fiscal year to date, comparing
     actual results with corresponding figures for the same period in the
     preceding fiscal year, subject to year end audit adjustments, all in
     reasonable detail and prepared in accordance with GAAP, together with a
     certification by the principal financial or accounting officer of the
     Borrower ("CFO") that such financial statements have been prepared in
     accordance with GAAP, are complete and correct in all material respects,
     and fairly present the financial condition of the Borrower and its
     Subsidiaries as at the close
<PAGE>
 
                                      -62-

     of business on the date thereof and the results of operations for the
     period then ended, subject to normal year-end audit adjustments, provided
     that the Borrower shall also provide a break-out of financial information
     on the Unrestricted Subsidiaries, prepared by the CFO, in the form
     requested by the Managing Agent;
     
               (c)  simultaneously with the delivery of the financial statements
     referred to in (a) and (b) above, (i) a statement in the form of EXHIBIT M
     hereto (the "Compliance Certificate") certified by the CFO that the
     Borrower and its Subsidiaries are in compliance with the covenants
     contained in (S)(S)10, 11, and 12 hereof as of the end of the applicable
     period and setting forth in reasonable detail computations evidencing such
     compliance, provided that if the Borrower or any of its Subsidiaries shall
     at the time of issuance of such certificate or at any other time obtain
     knowledge of any Default or Event of Default, the Borrower shall include in
     such certificate or otherwise deliver forthwith to the Lenders a
     certificate specifying the nature and period of existence thereof and what
     action the Borrower and its Subsidiaries propose to take with respect
     thereto; (ii) a backlog report in the form of EXHIBIT N hereto; and (iii) a
     break-out of financial information on the Unrestricted Subsidiaries,
     prepared by the CFO, in the form requested by the Managing Agent;
 
               (d)  promptly with the filing or mailing thereof, copies of all
     forms 8-K, 10-K, and 10-Q and any other material of a financial nature
     filed with the Securities and Exchange Commission or sent to the
     stockholders of the Borrower; and
 
               (e)  from time to time such other financial data and information,
     including, without limitation, financial information relating to the
     Unrestricted Subsidiaries, or financial information and financial covenant
     calculations regarding the accounts of the Borrower, as any Agent or any
     Lender may reasonably request.

The Borrower hereby authorizes any Agent or any Lender to disclose any
information obtained pursuant to this Agreement to all appropriate governmental
regulatory authorities where required by law; provided, however, that such Agent
or such Lender shall, to the extent allowable under law, notify the Borrower at
the time any such disclosure is made (except in the case of disclosures made in
the course of bank regulatory reviews); and provided further that this
authorization shall not be deemed to be a waiver of any rights to object to the
disclosure by any Agent or any Lender of any such information which the Borrower
has or may have under the federal Right to Financial Privacy Act of 1978, as in
effect from time to time.
<PAGE>
 
                                      -63-

     (S)10.5.  CORPORATE EXISTENCE AND CONDUCT OF BUSINESS. Subject to the
               ------------------------------------------- 
provisions of (S)11.4 hereof, the Borrower will and will cause each of its
Subsidiaries to do or cause to be done all things necessary to preserve and keep
in full force and effect their corporate existence, corporate rights and
franchises; effect and maintain their foreign qualifications, licensing,
domestication or authorization, except as otherwise determined by their
authorized officers or Boards of Directors in the exercise of their reasonable
judgment; use their best efforts to comply with all Applicable Laws; and shall
not become obligated under any contract or binding arrangement which, at the
time it was entered into would materially adversely impair the financial
condition of the Borrower and its Subsidiaries, on a consolidated basis. The
Borrower will and will cause its Subsidiaries to continue to engage primarily in
the businesses now conducted by them and in related businesses.

     (S)10.6.  MAINTENANCE OF PROPERTIES. The Borrower will and will cause each
               ------------------------- 
of its Subsidiaries to cause all of their properties used or useful in the
conduct of their business to be maintained and kept in good condition, repair
and working order and supplied with all necessary equipment and will cause to be
made all necessary repairs, renewals, replacements, betterments and improvements
thereof, all as in the judgment of the Borrower and its Subsidiaries may be
necessary so that the business carried on in connection therewith may be
properly and advantageously conducted at all times; provided, however, that
nothing in this section shall prevent the Borrower or any Subsidiary from taking
any action different from that described in this (S)10.6 if, in the judgment of
the Borrower or Subsidiary, such action is desirable in the conduct of its
business and which does not in the aggregate materially adversely affect the
business of the Borrower and its Subsidiaries on a consolidated basis.

     (S)10.7.  INSURANCE. The Borrower will maintain on behalf of itself and its
               --------- 
Subsidiaries with financially sound and reputable insurance companies, funds or
underwriters the kinds of insurance usually carried by reasonable and prudent
companies conducting businesses similar to that of the Borrower and its
Subsidiaries, covering the risks and in the relative proportionate amounts
usually carried by such companies, but in no event less than the amounts and
coverages set forth in SCHEDULE 10.7 hereto.

     (S)10.8.  TAXES. The Borrower will and will cause each of its Subsidiaries
               ----- 
to duly pay and discharge, or cause to be paid and discharged, before the same
shall become overdue, all taxes, assessments and other governmental charges
(other than taxes, assessments and other governmental charges imposed by foreign
jurisdictions which in the aggregate are not material to the business or assets
of the Borrower and its
<PAGE>
 
                                      -64-

Subsidiaries on a consolidated basis) imposed upon them and the Real Property,
sales and activities, or any part thereof, or upon the income or profits
therefrom, as well as all claims for labor, materials, or supplies, which if
unpaid might by law become a lien or charge upon any of its property; provided,
however, that any such tax, assessment, charge, levy or claim need not be paid
if the validity or amount thereof shall currently be contested in good faith by
appropriate proceedings and if the Borrower shall have set aside on its books
adequate reserves with respect thereto; and provided, further, that the Borrower
and its Subsidiaries will pay all such taxes, assessments, charges, levies or
claims forthwith upon the commencement of proceedings to foreclose any lien
which may have attached as security therefor.

     (S)10.9.   INSPECTION OF PROPERTIES, BOOKS, AND CONTRACTS. The Borrower
                ---------------------------------------------- 
will and will cause its Subsidiaries to permit any Agent or any Lender or any of
their designated representatives, to visit and inspect any of their properties,
to examine the books of account of the Borrower and its Subsidiaries (and to
make copies thereof and extracts therefrom), and to discuss the affairs,
finances and accounts of the Borrower and its Subsidiaries with, and to be
advised as to the same by, their officers, all at such reasonable times during
normal working hours and intervals as any Agent or any Lender may reasonably
request.

     (S)10.10.  COMPLIANCE WITH LAWS, CONTRACTS, LICENSES AND PERMITS. The
                ----------------------------------------------------- 
Borrower will and will cause each of its Subsidiaries to comply (i) in all
material respects with the provisions of its charter documents and by-laws and
all agreements and instruments by which it or any of its properties may be
bound; and (ii) with all applicable laws and regulations (including
Environmental Laws), and decrees, orders and judgments ("Applicable Laws"),
except where noncompliance with such agreements, instruments or Applicable Laws
would not have a material adverse effect in the aggregate on the financial
condition, properties or business of the Borrower and its Subsidiaries taken as
a whole.  If at any time while any Note, any Loan, or any Letter of Credit is
outstanding or the Lenders have any obligation to make Loans or the Managing
Agent or the Issuing Lender has any obligation to issue, extend, or renew
Letters of Credit hereunder, any authorization, consent, approval, permit or
license from any officer, agency or instrumentality of any government shall
become necessary or required in order that the Borrower may fulfill any of its
obligations hereunder, the Borrower will immediately take or cause to be taken
all reasonable steps within the power of the Borrower to obtain such
authorization, consent, approval, permit or license and furnish the Agents and
the Lenders with evidence thereof.
<PAGE>
 
                                      -65-

     (S)10.11.  FURTHER ASSURANCES. The Borrower will cooperate with the 
                ------------------ 
Managing Agent and execute such further instruments and documents as the
Managing Agent shall reasonably request to carry out to the satisfaction of the
Managing Agent the transactions contemplated by this Agreement.

     (S)10.12.  NOTICE OF POTENTIAL CLAIMS OR LITIGATION. The Borrower shall
                ---------------------------------------- 
deliver to the Agents and the Lenders, within 30 days of receipt thereof,
written notice of any pending action, claim, complaint, or any other notice of
dispute or potential litigation (including without limitation any alleged
violation of any Environmental Law), wherein the potential liability would be
material under the regulations of the United States Securities and Exchange
Commission, together with a copy of each such notice received by the Borrower or
any of its Subsidiaries.

     (S)10.13.  ENVIRONMENTAL INDEMNIFICATION. The Borrower covenants and agrees
                -----------------------------
that it will indemnify and hold the Agents and the Lenders and their respective
Affiliates harmless from and against any and all claims, expense, damage, loss
or liability incurred by the Agents or the Lenders (including all costs of legal
representation incurred by the Agents or the Lenders) relating to (a) any
Release or threatened Release of Hazardous Substances on the Real Property; (b)
any violation of any Environmental Laws with respect to conditions at the Real
Property or the operations conducted thereon; or (c) the investigation or
remediation of offsite locations at which the Borrower or its predecessors are
alleged to have directly or indirectly disposed of Hazardous Substances. It is
expressly acknowledged by the Borrower that this covenant of indemnification
shall survive any foreclosure or any modification, release or discharge of any
or all of the Loan Documents or the payment of the Loans and the Notes and shall
inure to the benefit of the Agents, the Lenders and their successors and
assigns, but shall not apply to any Release or offsite disposal of Hazardous
Materials which was caused by the gross negligence or willful misconduct of the
Agents or the Lenders or to any violations of Environmental Laws first
commencing after foreclosure (other than with respect to the continuance of
operations at the Real Property in substantial conformance with practices in
effect at the time of such foreclosure). The provisions of this (S)10.13 shall
survive repayment of the Obligations and termination of this Agreement.

     (S)10.14.  ACE OF CERTAIN EVENTS CONCERNING INSURANCE. The Borrower will
                ------------------------------------------
provide the Agents and the Lenders with written notice as to any cancellation or
material change in any insurance of the Borrower or any of its Subsidiaries
within ten (10) Business Days after the Borrower's or such Subsidiary's receipt
of any notice (whether formal or informal) of such cancellation or change by any
of its insurers.
<PAGE>
 
                                      -66-

     (S)10.15.  NOTICE OF DEFAULT. The Borrower will promptly notify the Agents
                ----------------- 
and the Lenders in writing of the occurrence of any Default or Event of Default.
If any Person shall give any notice or take any other action in respect of a
claimed default (whether or not constituting an Event of Default) under this
Agreement or any other note, evidence of indebtedness, indenture or other
obligation evidencing indebtedness in excess of $5,000,000 as to which the
Borrower is a party or obligor, whether as principal or surety, the Borrower
shall forthwith give written notice thereof to the Agents and the Lenders,
describing the notice of action and the nature of the claimed default.

     (S)11.     CERTAIN NEGATIVE COVENANTS OF THE BORROWER. The Borrower agrees
                ------------------------------------------ 
that, so long as any Loan, any Reimbursement Obligation, any Note, or any Letter
of Credit is outstanding, or any Lender has any obligation to make Loans or any
Issuing Lender has any obligation to issue, extend, renew or honor Letters of
Credit hereunder:

     (S)11.1.  RESTRICTIONS ON INDEBTEDNESS. The Borrower will not and will not
               ---------------------------- 
permit any of its Subsidiaries to, create, incur, assume, guarantee or be or
remain liable, contingently or otherwise, with respect to any Indebtedness other
than:
 
          (a)  Indebtedness to the Agents, the Issuing Lender, and the Lenders
     arising under this Agreement or the other Loan Documents;

          (b)  Additional existing Indebtedness as listed on SCHEDULE 11.1(B),
     in the amounts and on the terms and conditions in effect as of the date
     hereof, and any extension, renewal or refinancing thereof on terms no less
     favorable than those in effect on the date hereof;

          (c)  Indebtedness secured by liens of carriers, warehousemen,
     mechanics and materialmen permitted by (S)11.2(d);
     
          (d)  Indebtedness of Subsidiaries of the Borrower owing to foreign
     affiliates of the Managing Agent for reimbursement obligations in respect
     of guaranties issued by such affiliates and backed by a Letter of Credit
     issued hereunder, in an aggregate principal amount not to exceed
     $10,000,000 (all amounts denominated in currencies other than Dollars being
     expressed at their Dollar Equivalent);
 
          (e)  Indebtedness of any Unrestricted Subsidiary which is non-recourse
     to the Borrower and its other Subsidiaries (except that the capital stock
     of such Unrestricted Subsidiary may be pledged by


<PAGE>
 
                                      -67-
     
     the Borrower or other Subsidiary to secure such Indebtedness of such
     Unrestricted Subsidiary);

          (f)  Unsecured Indebtedness of the Borrower, including commercial
     paper, which is pari passu to the Obligations as to right of payment and
     priority; provided that there does not exist a Default or Event of Default
     at the time of the incurrence of such Indebtedness and no Default or Event
     of Default would be created by incurrence of such Indebtedness; and

          (g)  (1) Unsecured Indebtedness of the Borrower's Subsidiaries
     (including recourse Indebtedness of Unrestricted Subsidiaries) and (2)
     secured Indebtedness of the Borrower and its Subsidiaries (including
     recourse Indebtedness of Unrestricted Subsidiaries), provided that the
     aggregate amount of all such Indebtedness shall not exceed the greater of
     $100,000,000 or 5% of Consolidated Tangible Assets of the Borrower and its
     Subsidiaries.

     (S)11.2.  RESTRICTIONS ON LIENS. Neither the Borrower nor any of its
               --------------------- 
Subsidiaries will create or incur or suffer to be created or incurred or to
exist any lien, encumbrance, mortgage, pledge, charge, restriction or other
security interest of any kind upon any of its property or assets of any
character whether now owned or hereafter acquired, or upon the income or profits
therefrom; or transfer any of such property or assets or the income or profits
therefrom for the purpose of subjecting the same to the payment of Indebtedness
or performance of any other obligation in priority to payment of its general
creditors; or acquire, or agree or have an option to acquire, any property or
assets upon conditional sale or other title retention or purchase money security
agreement, device or arrangement; or suffer to exist for a period of more than
thirty (30) days after the same shall have been incurred any Indebtedness or
claim or demand against it which if unpaid might by law or upon bankruptcy or
insolvency, or otherwise, be given any priority whatsoever over its general
creditors; or sell, assign, pledge or otherwise transfer any accounts, contract
rights, general intangibles or chattel paper, with or without recourse, except
the following (the "Permitted Liens"):

          (a)  Liens to secure taxes, assessments and other government charges
     or claims for labor, material or supplies (i) in respect of obligations
     which are not overdue at the time of determination, or (ii) which are
     currently being contested in good faith by appropriate proceedings, if the
     Borrower shall have set aside on its books adequate reserves with respect
     thereto, if required, and if no proceedings have been commenced to
     foreclose any such lien.
<PAGE>
 
                                      -68-

          (b)  Deposits or pledges made in connection with, or to secure payment
     of, workmen's compensation, unemployment insurance, old age pensions or
     other social security obligations.

          (c)  Liens in respect of judgments or awards which have been in force
     for less than the applicable period for taking an appeal, so long as
     execution is not levied thereunder or in respect of which the Borrower
     shall at the time in good faith be prosecuting an appeal or proceedings for
     review, and in respect of which the Borrower has maintained reserves in an
     amount satisfactory to the Majority Lenders.
 
          (d)  Liens of carriers, warehousemen, mechanics and materialmen, and
     other like liens, in existence less than 120 days from the date of creation
     thereof in respect of obligations not overdue provided that such liens may
     continue to exist for a period of more than 120 days if the validity or
     amount thereof shall currently be contested by the Borrower (or any
     Subsidiary) in good faith by appropriate proceedings and if the Borrower
     shall have set aside on its books adequate reserves with respect thereto as
     required by GAAP and provided further that the Borrower (or any Subsidiary)
     will pay any such claim forthwith upon commencement of proceedings to
     foreclose any such lien.

          (e)  Encumbrances consisting of easements, rights of way, zoning
     restrictions, restrictions on the use of real property and defects and
     irregularities in the title thereto, landlord's or lessor's liens under
     leases to which the Borrower or any Subsidiary is a party, and other minor
     liens or encumbrances none of which in the opinion of the Borrower or such
     Subsidiary interferes materially with the use of the property affected in
     the ordinary conduct of the business of the Borrower or such Subsidiary
     which defects do not individually or in the aggregate have a material
     adverse effect on the business of the Borrower individually or of the
     Borrower and its Subsidiaries on a consolidated basis.

          (f)  Existing liens set forth in SCHEDULE 11.2(F).

          (g)  Liens securing Indebtedness permitted by (S)11.1(g)(2).

          (h)  Liens securing Indebtedness of Unrestricted Subsidiaries
     permitted by (S)11.1(e), provided that such Liens are only on the capital
     stock or assets of such Unrestricted Subsidiaries.
<PAGE>
 
                                      -69-

     (S)11.3   RESTRICTIONS ON INVESTMENTS. Neither the Borrower nor any of its
               --------------------------- 
Subsidiaries (other than Unrestricted Subsidiaries) will make or permit to exist
or to remain outstanding any Investment except the following:
 
          (a)  Marketable direct or guaranteed obligations of the United States
     of America which mature within one year from the date of purchase;

          (b)  Certificates of deposit, time deposits or repurchase agreements
     which are fully insured or are issued by commercial banks organized under
     the laws of the United States of America or any state thereof and having a
     combined capital, surplus, and undivided profits of not less than
     $100,000,000;

          (c)  Commercial paper issued by a corporation organized and existing
     under the laws of the United States of America or any state thereof which
     at the time of purchase have been rated not less than "P-1" by Moody's
     Investors Service, Inc., or not less than "A-1" by Standard and Poor's
     Rating Group;

          (d)  Investments existing on the date hereof by the Borrower or any
     Subsidiary in any other Subsidiary;

          (e)  Additional Investments by the Borrower in new Subsidiaries
     permitted under (S)11.4; and

          (f)  Other Investments in an aggregate amount not to exceed 10% of
     Consolidated Tangible Assets, provided that Investments in the Unrestricted
     Subsidiaries shall not exceed 5% of Consolidated Tangible Assets;

     provided further that the ability of the Borrower and its Subsidiaries to
incur any Indebtedness in connection with any Investment permitted by this
(S)11.3 shall be governed by (S)11.1.

     (S)11.4.  MERGERS, CONSOLIDATIONS, SALES. Neither the Borrower nor any of
               ------------------------------ 
its Subsidiaries shall be a party to any merger, consolidation or exchange of
stock, or purchase or otherwise acquire all or substantially all of the assets
or stock of any class of, or any partnership, membership, or joint venture
interest in, any other Person except as otherwise provided in (S)11.3 or this
(S)11.4, or sell, transfer, convey or lease any assets or group of assets
(except (i) sales of equipment and inventory in the ordinary course of business
and (ii) any other sale or sale/leaseback of assets by the Borrower
<PAGE>
 
                                      -70-

not to exceed an aggregate book value of five percent (5%) of Consolidated Total
Assets immediately prior to such sale or sale and leaseback). The Borrower and
its Subsidiaries may purchase or otherwise acquire all or substantially all of
the assets or stock of, or partnership, membership, or joint venture interest
in, or (in the case of any Subsidiary of the Borrower) may merge with any
Person, provided that (a) in the event that the cash paid in connection with any
such acquisition or series of related acquisitions exceeds $200,000,000,
(including deferred payments and the amount of all Indebtedness, including,
without limitation, any notes, or puts payable in cash with respect to any
securities issued as consideration for any such transaction, or assumed in
connection therewith), the Agents and the Lenders shall have been provided with
pro forma financial statements reasonably satisfactory to the Managing Agent
demonstrating that the Borrower is in current compliance with and, after giving
effect to the proposed transaction (including any borrowings made or to be made
in connection therewith), will continue to be in compliance through the Maturity
Date with, all of the covenants in (S)11.1 and (S)12 hereof; (b) no Default or
Event of Default exists, and the proposed transaction will not otherwise create
a Default or an Event of Default hereunder; (c) the business to be acquired
involves substantially the same lines, related lines, or supporting lines of
business as the Borrower or its Subsidiaries are currently engaged in; (d) in
the case of a merger, the surviving entity shall be a wholly-owned Subsidiary of
the Borrower; (e) a copy of the purchase agreement, together with all financial
statements received by the Borrower or its Subsidiaries for any Subsidiary to be
acquired or created shall have been furnished to the Agents and the Lenders; and
(f) the acquisition shall have been approved by the board of directors of the
corporation to be acquired prior to the commencement of (i) any tender offer
for, or the acquisition by the Borrower or any of its Subsidiaries of, any
shares of the corporation to be acquired, or (ii) any proxy solicitation of the
shareholders of the corporation to be acquired. The Subsidiaries of the Borrower
may merge, consolidate or combine with and into one another, provided that the
resulting entity is a Subsidiary of the Borrower and no Default or Event of
Default exists or would exist after giving effect to such merger.
 
     The Lenders are aware of the announced tender offer and takeover scheme by
a Subsidiary of the Borrower for the ordinary shares (including the American
Depositary Shares) of Memtec Limited (the "Memtec Acquisition").
Notwithstanding any other provisions of this Agreement, the Lenders hereby
expressly consent to the Memtec Acquisition and agree that the Memtec
Acquisition is a permitted transaction hereunder and that Loans made hereunder
may be used for the purpose of lending to a Subsidiary of the Borrower for the
purpose of purchasing ordinary shares and American Depositary Shares of Memtec
Limited.  Furthermore, the parties agree that
<PAGE>
 
                                      -71-

without the further consent of the Lenders, (a) the structure of the Memtec
Acquisition may be modified (including without limitation the scheme of
arrangement) and (b) the terms of the Memtec Acquisition may be modified,
including by increasing the price or changing the form of consideration from
cash to stock or a combination of cash and stock, provided that updated  pro
                                                  -------------
forma financial statements reflecting such changes are provided to the Lenders
and provided further that (i) no Default or Event of Default has occurred and  
    ----------------                                
is continuing under (S)15.1(a) or (b), or under (S)15.1(c) as it relates to
(S)12, (ii) no other Default or Event of Default has occurred and is continuing
and with respect to which the Lenders have notified the Borrower that the Memtec
Acquisition is no longer permitted, and (iii) no Default or Event of Default
will be caused by the Memtec Acquisition.

     (S)11.5.  RESTRICTED DISTRIBUTIONS AND REDEMPTIONS. The Borrower will not,
               ---------------------------------------- 
and will cause each of its Subsidiaries not to, declare or pay any Distributions
if a Default or Event of Default exists or would be created by the making of
such Distribution, provided, however, that the following Distributions may be
made at any time: (a) Distributions payable solely in common stock and (b)
Distributions from a Subsidiary to the Borrower. The Borrower further agrees
that neither the Borrower nor any Subsidiary will enter into any agreement
restricting Distributions from any Subsidiary to the Borrower, other than
existing restrictions in the debt instruments as in effect as of the Closing
Date.

     (S)11.6.  EMPLOYEE BENEFIT PLANS. Neither the Borrower, any Subsidiary, nor
               ---------------------- 
any ERISA Affiliate will:
 
          (a)  engage in any "prohibited transaction" within the meaning of
     (S)406 of ERISA or (S)4975 of the Code which could result in a material
     liability for the Borrower or any of its Subsidiaries; or

          (b)  permit any Guaranteed Pension Plan to incur an "accumulated
     funding deficiency," as such term is defined in (S)302 of ERISA, whether or
     not such deficiency is or may be waived or otherwise permit any pension
     plan to be underfunded; or

          (c)  fail to contribute to any Guaranteed Pension Plan to an extent
     which, or terminate any Guaranteed Pension Plan in a manner which, could
     result in the imposition of a lien or encumbrance on the assets of the
     Borrower or any of its Subsidiaries pursuant to (S)302(f) or (S)4068 of
     ERISA; or
<PAGE>
 
                                      -72-

          (d)  amend any Guaranteed Pension Plan in circumstances requiring the
     posting of security pursuant to (S)307 of ERISA or (S)401(a)(29) of the
     Code; or

          (e)  permit or take any action which would result in the aggregate
     benefit liabilities (within the meaning of (S)4001 of ERISA) of all
     Guaranteed Pension Plans exceeding the value of the aggregate assets of
     such Plans, disregarding for this purpose the benefit liabilities and
     assets of any such Plan with assets in excess of benefit liabilities.
 
     If requested by the Managing Agent, the Borrower will (i) promptly upon
filing the same with the Department of Labor or Internal Revenue Service,
furnish to the Managing Agent a copy of the most recent actuarial statement
required to be submitted under (S)123(d) of ERISA and Annual Report, Form 5500,
with all required attachments, in respect of each Guaranteed Pension Plan and
(ii) promptly upon receipt or dispatch, furnish to the Agent and the Lenders any
notice, report or demand sent or received in respect of a Guaranteed Pension
Plan under (S)(S)302, 4041, 4042, 4043, 4063, 4065, 4066 and 4068 of ERISA, or
in respect of a Multiemployer Plan, under (S)(S)4041A, 4202, 4219, or 4245 of
ERISA.

     (S)11.7.  NEGATIVE PLEDGES. Neither the Borrower nor any of its 
               ---------------- 
Subsidiaries will enter into or be a party to any agreement which prohibits the
Borrower or its Subsidiaries from granting security interests in their assets.

     (S)12.    FINANCIAL COVENANTS. The Borrower agrees that, so long as any 
               ------------------- 
Loan, any Note, any Reimbursement Obligation, or any Letter of Credit is
outstanding or any Lender has any obligation to make Loans or any Issuing Lender
has any obligation to issue, extend, renew or honor any Letters of Credit
hereunder:

     (S)12.1.  LEVERAGE RATIO. As of the end of any fiscal quarter commencing
               -------------- 
with the fiscal quarter ending June 30, 1997, the ratio of (a) Funded Debt less
cash and cash equivalents in excess of $10,000,000 to (b) EBITDA for the four
quarters ending on such date (the "Leverage Ratio") shall not at any time exceed
3.25:1, provided, however, that if the Memtec Acquisition is consummated, the
        -----------------
Leverage Ratio shall not exceed (i) 4.25:1 for any period of four fiscal
quarters ending during the first six months following the Memtec Acquisition (or
until the Equity Conversion Date if earlier), and (ii) 3.75:1 for any period of
four fiscal quarters ending during the remainder of the one-year period
following the Memtec Acquisition.
<PAGE>
 
                                      -73-

     (S)12.2.  INTEREST COVERAGE RATIO. As of the end of any fiscal quarter
               ----------------------- 
commencing with the fiscal quarter ending June 30, 1997 the ratio of (a) EBIT
for the four quarters ending on such date to (b) Consolidated Total Interest
Expense for such period shall not be less than 3.50:1.

     (S)12.3.  DEBT TO CAPITAL RATIO. As at the end of any fiscal quarter
               --------------------- 
commencing with the fiscal quarter ending June 30, 1997 the ratio of (a) Funded
Debt to (b) Funded Debt plus total shareholders' equity (excluding any capital
contributions from Unrestricted Subsidiaries, including net income earned by
Unrestricted Subsidiaries, which is reflected in consolidated retained earnings)
shall not exceed 55%.

     (S)13.    CLOSING CONDITIONS. Upon the Closing Date, all of the obligations
               ------------------ 
of the Borrower under or in respect of the Prior Credit Agreement (other than
those obligations which by the express terms of the Prior Credit Agreement
survive the repayment of the loans thereunder) shall be terminated and the
Obligations shall be evidenced solely by the terms of this Agreement, the Notes
and the other Loan Documents. The Lenders' obligations to make the Loans and the
Managing Agent's and the Issuing Lender's obligations with respect to the
issuance of the Letters of Credit provided for in this Agreement and otherwise
to be bound by the terms provided for in this Agreement shall be subject to the
satisfaction, prior to the Closing Date, of each of the following conditions:

     (S)13.1.  REPRESENTATIONS AND WARRANTIES. The representations and 
               ------------------------------ 
warranties contained in (S)9 hereof and otherwise made by the Borrower in
writing in connection with the transactions contemplated by this Agreement shall
have been correct as of the date on which made and shall also be correct at and
as of the date of the first Loan or issuance of the first Letter of Credit with
the same effect as if made at and as of such time, except to the extent that the
facts upon which such representations and warranties are based may in the
ordinary course be changed by the transactions permitted or contemplated hereby
which singly or in the aggregate are not materially adverse.

     (S)13.2.  PERFORMANCE; NO DEFAULT. The Borrower shall have performed and
               ----------------------- 
complied with all terms and conditions herein required to be performed or
complied with by the Borrower prior to or at the time of the first Loan or
issuance of the first Letter of Credit, and at the time of the first Loan or
issuance of the first Letter of Credit, as certified by the chief financial
officer of the Borrower, there shall exist no Default or Event of Default or
condition which would, with either or both the giving of notice or the lapse of
time, result in a Default or Event of Default upon consummation of the first
Loan or issuance of the first Letter of Credit.
<PAGE>
 
                                      -74-

     (S)13.3   CORPORATE ACTION. All corporate or other action necessary for the
               ---------------- 
valid execution, delivery and performance by the Borrower of the Loan Documents
shall have been duly and effectively taken, and evidence thereof satisfactory to
the Lenders shall have been provided to each of the Lenders.

     (S)13.4.  LOAN DOCUMENTS, ETC. Each of the Loan Documents shall have been
               ------------------- 
duly and properly authorized, executed and delivered by the respective parties
thereto and shall be in full force and effect in a form satisfactory to the
Lenders.

     (S)13.5.  CERTIFIED COPIES OF CHARTER DOCUMENTS. The Managing Agent shall
               ------------------------------------- 
have received from the Borrower a copy, certified by a duly authorized officer
of such Person to be true and complete on the Closing Date, of each of (a) its
charter or other incorporation or organizational documents as in effect on such
date of certification, and its by-laws as in effect on such date, or (b) a
certificate of such officer stating that there have been no changes to such
charter documents and by-laws since November 30, 1995.

     (S)13.6   INCUMBENCY CERTIFICATE. Each of the Lenders shall have received
               ---------------------- 
an incumbency certificate, dated as of the Closing Date, signed by duly
authorized officers giving the name and bearing a specimen signature of each
individual who shall be authorized: (a) to sign the Loan Documents on behalf of
the Borrower; (b) to make Loan requests; (c) to make Competitive Bid Quote
Requests; and (d) to give notices and to take other action on the Borrower's
behalf under the Loan Documents.

     (S)13.7.  PAYMENT OF FEES AND INTEREST. The Borrower shall have paid (a)
               ---------------------------- 
to the Prior Lenders all interest, fees and other amounts which are due pursuant
to the Prior Credit Agreement and (b) all fees required to be paid to the Agents
and the Lenders on the Closing Date.

     (S)13.8.  FINANCIAL STATEMENTS. The Borrower shall have delivered to each 
               -------------------- 
of the Lenders audited consolidated financial statements for the year ended the
Balance Sheet Date and unaudited consolidated financial statements for the
period ended on June 30, 1997 which shall fairly represent the business and
financial condition of the Borrower and its Subsidiaries on a consolidated basis
in accordance with GAAP, together with a Compliance Certificate demonstrating
that the Borrower is in compliance with the provisions of (S)12 hereof as of the
Closing Date.

     (S)13.9.  FINANCIAL PROJECTIONS. The Borrower shall have delivered to the
               --------------------- 
Managing Agent and the Lenders financial projections, including a balance sheet,
income statement and cash flow statement beginning with the period ending March
31, 1997 and for the following five (5) fiscal years
<PAGE>
 
                                      -75-

thereafter, in form and substance reasonably satisfactory to the Managing Agent
and the Lenders.

     (S)13.10  OPINIONS OF COUNSEL. Each of the Lenders shall have received a
               ------------------- 
favorable opinion from General Counsel of the Borrower dated the Closing Date in
form and substance satisfactory to the Lenders.

     (S)14.    CONDITIONS OF ALL LOANS. The obligation of Lenders to make the
               ----------------------- 
first Loan and any Loan subsequent to the first Loan and the obligation of the
Issuing Lender to issue, extend or renew any Letter of Credit are subject to the
following conditions precedent:

     (S)14.1.  REPRESENTATIONS TRUE. Each of the representations and warranties
               -------------------- 
of the Borrower contained in this Agreement or in any document or instrument
delivered pursuant to or in connection with this Agreement shall be true as of
the date as of which they were made and shall also be true at and as of the time
of the making of the Loan or the issuance, extension or renewal of Letter of
Credit with the same effect as if made at and as of that time (except to the
extent of changes resulting from transactions contemplated or permitted by this
Agreement and changes occurring in the ordinary course of business or disclosed
in the financial statements and other information delivered to the Lenders
pursuant to (S)10.4 hereof which singly or in the aggregate are not materially
adverse, and to the extent that such representations and warranties expressly
relate solely to an earlier date).

     (S)14.2.  PERFORMANCE; NO DEFAULT OR EVENT OF DEFAULT. The Borrower shall
               ------------------------------------------- 
have performed and complied with all terms and conditions herein required to be
performed or complied with by the Borrower prior to or at the time of the Loan
or the issuance, extension or renewal of any Letter of Credit, and at the time
of the making of the Loan or the issuance, extension or renewal of Letter of
Credit, there shall exist no Default or Event of Default or condition which
would result in a Default or Event of Default upon consummation of the Loan or
the issuance, extension or renewal of Letter of Credit.

     (S)14.3.  NO LEGAL IMPEDIMENT. No change shall have occurred in any law or
               ------------------- 
regulations thereunder or interpretations thereof which in the reasonable
opinion of the Lenders would make it illegal for the Lenders to make Loans
hereunder or for the Managing Agent to issue, extended or renew a Letter of
Credit.

     (S)14.4.  GOVERNMENTAL REGULATION. The Lenders shall have received such
               ----------------------- 
statements in substance and form reasonably satisfactory to the Lenders as they
shall require for the purpose of compliance with any
<PAGE>
 
                                      -76-

applicable regulations of the Comptroller of the Currency or the Board of
Governors of the Federal Reserve System.

     (S)14.5.  PROCEEDINGS AND DOCUMENTS. All proceedings in connection with the
               ------------------------- 
transactions contemplated by this Agreement and all documents incident thereto
shall be satisfactory in form and substance to the Agents and the Lenders, and
the Lenders and the Agents shall have received all information and such
counterpart originals or certified or other copies of such documents as the
Lenders and the Agents may reasonably request.

     (S)15.    EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENTS;
               -----------------------------------------------------------
 REMEDIES.
 --------- 

     (S)15.1.  EVENTS OF DEFAULT AND ACCELERATION. If any of the following      
               ---------------------------------- 
events ("Events of Default" or, if the giving of notice or the lapse of time or
both is required, then, prior to such notice and/or lapse of time, "Defaults")
shall occur:

          (a)  if the Borrower shall fail to pay any principal of the Loans or
     any Reimbursement Obligation when the same shall become due and payable,
     whether at the stated date of maturity or any accelerated date of maturity
     or at any other date fixed for payment;

          (b)  if the Borrower shall fail to pay any interest, Facility Fees,
     Letter of Credit Fees, or any other fees or other amounts owing under any
     of the Loan Documents within five (5) Business Days after the same shall
     become due and payable whether at the stated date of maturity or any
     accelerated date of maturity or at any other date fixed for payment;

          (c)  if the Borrower or any of its Subsidiaries shall fail to comply
     with the covenants contained in (S)(S)10.15, 11, or 12 hereof;

          (d)  if the Borrower or any of its Subsidiaries shall fail to comply
     with the covenants contained in (S)(S)10.12 or 10.14 hereof, and such
     failure shall be continuing for a period of ten (10) days;

          (e)  if the Borrower shall fail to perform any term, covenant or
     agreement herein contained or contained in any of the other Loan Documents
     (other than those specified in subsections (a), (b), (c), and (d) above)
     and such failure has not been remedied within thirty (30) days after
     written notice of such failure has been given to the Borrower by the
     Managing Agent;
<PAGE>
 
                                      -77-

          (f)  if any representation or warranty contained in this Agreement or
     in any document or instrument delivered pursuant to or in connection with
     this Agreement shall prove to have been false in any material respect upon
     the date when made (or deemed made) or repeated;

          (g)  if the Borrower or any of its Subsidiaries (other than
     Unrestricted Subsidiaries) shall (i) fail to pay at maturity, or within any
     applicable period of grace, any obligation in respect of borrowed money in
     the aggregate amount of $5,000,000 or (ii) fail to observe or perform any
     material term, covenant or agreement contained in any agreement by which it
     is bound evidencing or securing borrowed money in an amount in excess of
     $15,000,000 in the aggregate for such period of time as would, or would
     have permitted (assuming the giving of appropriate notice if required) the
     holder or holders thereof or of any obligations issued thereunder to
     accelerate the maturity thereof, unless the same shall have been waived by
     the holder(s) thereof;

          (h)  if the Borrower or any Material Subsidiary makes an assignment
     for the benefit of creditors, or admits in writing its inability to pay or
     generally fails to pay its debts as they mature or become due or petitions
     or applies for the appointment of a trustee or other custodian, liquidator
     or receiver of the Borrower or such Subsidiary or of any substantial part
     of the assets of the Borrower or such Subsidiary or commences any case or
     other proceeding relating to the Borrower under any bankruptcy,
     reorganization, arrangement, insolvency, readjustment of debt, dissolution
     or liquidation or similar law of any jurisdiction, now or hereafter in
     effect, or takes any action to authorize or in furtherance of any of the
     foregoing, or if any such petition or application is filed or any such case
     or other proceeding is commenced against the Borrower or such Subsidiary
     and the Borrower or such Subsidiary indicates its approval thereof, consent
     thereto or acquiescence therein;

          (i)  a decree or order is entered appointing any such trustee,
     custodian, liquidator or receiver or adjudicating the Borrower or any
     Material Subsidiary bankrupt or insolvent, or approving a petition in any
     such case or other proceeding, or a decree or order for relief is entered
     in respect of the Borrower or such Subsidiary in an involuntary case under
     Federal bankruptcy laws as now or hereafter constituted, and such decree or
     order remains in effect for more than thirty (30) days, whether or not
     consecutive;
<PAGE>
 
                                      -78-

          (j)  if there shall remain in force, undischarged, unsatisfied and
     unstayed, for more than thirty (30) days, whether or not consecutive, any
     final non-appealable judgment against the Borrower or any of its
     Subsidiaries (other than Unrestricted Subsidiaries) which, with other
     outstanding final judgments, undischarged against the Borrower and such
     Subsidiaries exceeds in the aggregate $5,000,000 after taking into account
     any insurance coverage;

          (k)  the Borrower or any ERISA Affiliate incurs any liability to the
     PBGC or a Guaranteed Pension Plan pursuant to Title IV of ERISA in an
     aggregate amount exceeding $5,000,000, or the Borrower or any ERISA
     Affiliate is assessed withdrawal liability pursuant to Title IV of ERISA by
     a Multiemployer Plan in an aggregate amount exceeding $5,000,000, or any of
     the following occurs with respect to a Guaranteed Pension Plan: (i) an
     ERISA Reportable Event, or a failure to make a required installment or
     other payment (within the meaning of (S)302(f)(1) of ERISA), provided that
                                                                  --------     
     the Agent determines in its reasonable discretion that such event (A) could
     be expected to result in liability of the Borrower or any of its
     Subsidiaries to the PBGC or such Guaranteed Pension Plan in an aggregate
     amount exceeding $5,000,000 and (B) could constitute grounds for the
     termination of such Guaranteed Pension Plan by the PBGC, for the
     appointment by the appropriate United States District Court of a trustee to
     administer such Guaranteed Pension Plan or for the imposition of a lien in
     favor of such Guaranteed Pension Plan; or (ii) the appointment by a United
     States District Court of a trustee to administer such Guaranteed Pension
     Plan; or (iii) the institution by the PBGC of proceedings to terminate such
     Guaranteed Pension Plan;

          (l)  if any of the Loan Documents shall be canceled, terminated,
     revoked or rescinded otherwise than in accordance with the terms thereof or
     with the express prior written agreement, consent or approval of the
     Lenders, or any action at law, or suit in equity or other legal proceeding
     to cancel, revoke or rescind any of the Loan Documents shall be commenced
     by or on behalf of the Borrower, or any of its stockholders, or any court
     or any other governmental or regulatory authority or agency of competent
     jurisdiction shall make a determination that, or issue a judgment, order,
     decree or ruling to the effect that, any one or more of the Loan Documents
     is illegal, invalid or unenforceable in accordance with the terms thereof;
     or

          (m)  if a Change of Control shall have occurred;
<PAGE>
 
                                      -79-

then, the Managing Agent may, and upon the request of the Majority Lenders
shall, by notice in writing to the Borrower, declare all amounts owing with
respect to this Agreement, the Notes, and the other Loan Documents, and all
Reimbursement Obligations to be, and they shall thereupon forthwith mature and
become, immediately due and payable without presentment, demand, protest or
other notice of any kind, all of which are hereby expressly waived by the
Borrower; provided that in the event of any Event of Default specified in
(S)(S)15.1(h) or 15.1(i) hereof, all such amounts shall become immediately due
and payable automatically and without any requirement of notice from the
Managing Agent.

     (S)15.2.  TERMINATION OF COMMITMENTS. If any Event of Default pursuant to
               -------------------------- 
(S)(S)15.1(h) or 15.1(i) hereof shall occur, any unused portion of the Total
Commitment shall forthwith terminate and the Lenders, the Managing Agent, and
the Issuing Lender shall be relieved of all obligations to make Loans to or to
issue, extend or renew Letters of Credit for the account of the Borrower; or if
any other Event of Default shall occur, the Majority Lenders may by notice to
the Borrower terminate the unused portion of the Total Commitment hereunder,
and, upon such notice being given, such unused portion of the Total Commitment
hereunder shall terminate immediately and the Lenders, the Managing Agent, and
the Issuing Lender shall be relieved of all further obligations to make Loans to
or to issue, extend or renew Letters of Credit for the account of, the Borrower
hereunder. No termination of any portion of the Total Commitment hereunder shall
relieve the Borrower of any of its existing Obligations to the Lenders, the
Issuing Lender, or the Agents hereunder or elsewhere.

     (S)15.3.  REMEDIES. Upon demand by the Managing Agent after the occurrence
               -------- 
of any Event of Default, the Borrower shall immediately provide to the Managing
Agent cash in an amount equal to the aggregate Maximum Drawing Amount to be held
by the Managing Agent as collateral security for the Obligations, provided that
in the event of any Event of Default specified in (S)(S)15.1(h) or 15.1(i)
hereof, the Borrower shall immediately provide such collateral security without
any requirement of notice from the Managing Agent. In case any one or more of
the Events of Default shall have occurred and be continuing, and whether or not
the maturity of the Loans shall have been accelerated pursuant to the foregoing,
each of the Lenders, if owed any amount with respect to the Loans may, with the
consent of the Majority Lenders, (a) proceed to protect and enforce its rights
by suit in equity, action at law and/or other appropriate proceeding, whether
for the specific performance of any covenant or agreement contained in this
Agreement or any instrument pursuant to which the Obligations to the Lenders and
the Agents hereunder are evidenced, including as permitted by applicable law the
obtaining of the ex parte appointment of a receiver, and, (b) if such
<PAGE>
 
                                      -80-

amount shall have become due, by declaration or otherwise, proceed to enforce
the payment thereof or any other legal or equitable right of such Lender. No
remedy herein conferred upon the Agents, the Lenders or the holder of the Notes
is intended to be exclusive of any other remedy and each and every remedy shall
be cumulative and shall be in addition to every other remedy given hereunder or
now or hereafter existing at law or in equity or by statute or any other
provision of law.

     (S)16.   SETOFF. Regardless of the adequacy of any collateral, during the
              ------ 
continuance of an Event of Default, any deposits or other sums credited by or
due from the Lenders to the Borrower and any securities or other property of the
Borrower in the possession of the Lenders may, with the prior written consent of
the Managing Agent, be applied to or set off against the payment of the
Obligations hereunder and under any Note and any and all other liabilities,
direct, or indirect, absolute or contingent, due or to become due, now existing
or hereafter arising, of the Borrower to the Lenders and the Agents. Each of the
Lenders agrees with each other Lender that (i) if an amount to be set off is to
be applied to Indebtedness of the Borrower to such Lender, other than
Indebtedness evidenced by the Notes held by such Lender or constituting
Reimbursement Obligations owed to such Lender, such amount shall be applied
ratably to such other Indebtedness and to the Indebtedness evidenced by all such
Notes held by such Lender or constituting Reimbursement Obligations owed to such
Lender, and (ii) if such Lender shall receive from the Borrower, whether by
voluntary payment, exercise of the right of setoff, counterclaim, cross action,
enforcement of the claim evidenced by the Notes held by, or constituting
Reimbursement Obligations owed to, such Lender by proceedings against the
Borrower at law or in equity or by proof thereof in bankruptcy, reorganization,
liquidation, receivership or similar proceedings, or otherwise, and shall retain
and apply to the payment of the Note or Notes held by, or Reimbursement
Obligations owed to, such Lender any amount in excess of its ratable portion of
the payments received by all of the Lenders with respect to the Notes held by,
and Reimbursement Obligations owed to, all of the Lenders, such Lender will make
such disposition and arrangements with the other Lenders with respect to such
excess, either by way of distribution, pro tanto assignment of claims,
subrogation or otherwise as shall result in each Lender receiving in respect of
the Notes held by it or Reimbursement Obligations owed it, its proportionate
payment as contemplated by this Agreement; provided that if all or any part of
such excess payment is thereafter recovered from such Lender, such disposition
and arrangements shall be rescinded and the amount restored to the extent of
such recovery, but without interest.
<PAGE>
 
                                      -81-

     (S)17.    EXPENSES. Whether or not the transactions contemplated herein
               --------
shall be consummated, the Borrower hereby promises to reimburse the Managing
Agent and the Arranger for all reasonable out-of-pocket fees and expenses,
including, without limitation, attorneys' fees and disbursements, incurred or
expended in connection with the preparation, syndication or interpretation of
this Agreement, the Notes, the Letters of Credit or any other Loan Document or
any amendment hereof or thereof, and to reimburse the Lenders for reasonable
legal fees and disbursements incurred in connection with the enforcement of any
Obligations or the satisfaction of any indebtedness of the Borrower hereunder or
thereunder, or in connection with any litigation, proceeding or dispute
hereunder in any way related to the credit hereunder, including without
limitation the so-called "work-out" thereof whether before or after the
occurrence of a Default or Event of Default. The Borrower will pay any taxes
(including any interest and penalties in respect thereof), other than the
federal and state income taxes of the Agents and the Lenders, payable on or with
respect to the transactions contemplated by this Agreement (the Borrower hereby
agreeing to indemnify the Agents and the Lenders with respect thereto). The
Borrower further promises to reimburse the Agents and the Lenders for all such
fees and disbursements incurred or expended in connection with the enforcement
of any Obligations or the satisfaction of any indebtedness of the Borrower
hereunder or thereunder, or in connection with any litigation, proceeding or
dispute in any way related to the credit hereunder. The covenants of this (S)17
shall survive payment or satisfaction of amounts owing with respect to the Loan
Documents. The Borrower also promises to pay the Managing Agent all reasonable
out-of-pocket fees and disbursements, incurred or expended in connection with
the Competitive Bid Loan procedure under (S)4 hereof.

     (S)18.    THE AGENTS.
               ---------- 

     (S)18.1.  AUTHORIZATION. Each Agent is authorized to take such action on
               -------------
behalf of each of the Lenders and to exercise all such powers as are set forth
hereunder and under any of the other Loan Documents and any related documents
delegated to such Agent, together with such powers as are reasonably incident
thereto, provided that no duties or responsibilities not expressly assumed
herein or therein shall be implied to have been assumed by such Agent. The
relationship between each of the Agents and the Lenders is and shall be that of
agent and principal only, and nothing contained in this Agreement or any of the
other Loan Documents shall be construed to constitute such Agent as a trustee
for any Lender.

     (S)18.2.  EMPLOYEES AND AGENTS. Each Agent may exercise its powers and
               --------------------
execute its duties by or through employees or agents and shall be 
<PAGE>
 
                                      -82-

entitled to take, and to rely on, advice of counsel concerning all matters
pertaining to its rights and duties under this Agreement and the other Loan
Documents. Each Agent may utilize the services of such Persons as such Agent in
its sole discretion may reasonably determine, and all reasonable fees and
expenses of any such Persons shall be paid by the Borrower.

     (S)18.3.  NO LIABILITY. None of the Agents nor any of their shareholders,
               ------------
directors, officers or employees nor any other Person assisting them in their
duties nor any agent or employee thereof, shall be liable for any waiver,
consent or approval given or any action taken, or omitted to be taken, in good
faith by it or them hereunder or under any of the other Loan Documents, or in
connection herewith or therewith, or be responsible for the consequences of any
oversight or error of judgment whatsoever, except that such Agent or such other
Person, as the case may be, may be liable for losses due to its willful
misconduct or gross negligence.

     (S)18.4.  NO REPRESENTATIONS. None of the Agents shall be responsible for
               ------------------
the execution or validity or enforceability of this Agreement, the Notes, the
Letters of Credit, any of the other Loan Documents or any instrument at any time
constituting, or intended to constitute, collateral security for the Notes, or
for the value of any such collateral security or for the validity,
enforceability or collectability of any such amounts owing with respect to the
Notes, or for any recitals or statements, warranties or representations made
herein or in any of the other Loan Documents or in any certificate or instrument
hereafter furnished to it by or on behalf of the Borrower, or be bound to
ascertain or inquire as to the performance or observance of any of the terms,
conditions, covenants or agreements herein or in any instrument at any time
constituting, or intended to constitute, collateral security for the Notes or to
inspect any of the properties, books or records of the Borrower. None of the
Agents shall be bound to ascertain whether any notice, consent, waiver or
request delivered to it by the Borrower or any holder of any of the Notes shall
have been duly authorized or is true, accurate and complete. None of the Agents
has made, nor does it now make, any representations or warranties, express or
implied, nor does it assume any liability to the Lenders, with respect to the
credit worthiness or financial condition of the Borrower. Each Lender
acknowledges that it has, independently and without reliance upon any Agent or
any other Lender, and based upon such information and documents as it has deemed
appropriate, made its own credit analysis and decision to enter into this
Agreement.

     (S)18.5.  PAYMENTS. 
               --------

               (a)  A payment by the Borrower to the Managing Agent hereunder or
     any of the other Loan Documents for the account of any
<PAGE>
 
                                      -83-

     Lender shall constitute a payment to such Lender. The Managing Agent agrees
     promptly to distribute to each Lender such Lender's pro rata share of
     payments received by the Managing Agent for the account of the Lenders,
     except as otherwise expressly provided herein or in any of the other Loan
     Documents.

               (b)  If in the opinion of the Managing Agent the distribution of
     any amount received by it in such capacity hereunder, under the Notes or
     under any of the other Loan Documents might involve it in liability, it may
     refrain from making distribution until its right to make distribution shall
     have been adjudicated by a court of competent jurisdiction, provided that
     interest shall accrue on such amount at a rate not less than the then
     effective Federal Funds Effective Rate until such distribution has been
     made, and the recipients of such distribution shall each be entitled to
     receive their ratable share of such interest accrued to the time of such
     distribution. If a court of competent jurisdiction shall adjudge that any
     amount received and distributed by the Managing Agent is to be repaid, each
     Person to whom any such distribution shall have been made shall either
     repay to the Managing Agent its proportionate share of the amount so
     adjudged to be repaid or shall pay over the same in such manner and to such
     Persons as shall be determined by such court.

               (c)  Notwithstanding anything to the contrary contained in this
     Agreement or any of the other Loan Documents, any Lender that fails (i) to
     make available to the Managing Agent its pro rata share of any Loan or to
     purchase any Letter of Credit Participation or (ii) to comply with the
     provisions of (S)16 with respect to making dispositions and arrangements
     with the other Lenders, where such Lender's share of any payment received,
     whether by setoff or otherwise, is in excess of its pro rata share of such
     payments due and payable to all of the Lenders, in each case as, when and
     to the full extent required by the provisions of this Agreement, shall be
     deemed delinquent (a "Delinquent Lender") and shall be deemed a Delinquent
     Lender until such time as such delinquency is satisfied. A Delinquent
     Lender shall be deemed to have assigned any and all payments due to it from
     the Borrower, whether on account of outstanding Loans, unpaid Reimbursement
     Obligations, interest, fees or otherwise, to the remaining nondelinquent
     Lenders for application to, and reduction of, their respective pro rata
     shares of all outstanding Loans and unpaid Reimbursement Obligations. The
     Delinquent Lender hereby authorizes the Managing Agent to distribute such
     payments to the nondelinquent Lenders in proportion to their respective pro
     rata shares of all outstanding Loans and unpaid Reimbursement 
<PAGE>
 
                                      -84-

     Obligations. A Delinquent Lender shall be deemed to have satisfied in full
     a delinquency when and if, as a result of application of the assigned
     payments to all outstanding Loans and unpaid Reimbursement Obligations of
     the nondelinquent Lenders, the Lenders' respective pro rata shares of all
     outstanding Loans and unpaid Reimbursement Obligations have returned to
     those in effect immediately prior to such delinquency and without giving
     effect to the nonpayment causing such delinquency.

     (S)18.6.  HOLDERS OF NOTES. The Managing Agent may deem and treat the payee
               ----------------
of any Note or the purchaser of any Letter of Credit Participation as the
absolute owner or purchaser thereof for all purposes hereof until it shall have
been furnished in writing with a different name by such payee or by a subsequent
holder, assignee or transferee.

     (S)18.7.  INDEMNITY. The Lenders ratably (in accordance with the
               ---------
relationship that each of their respective Commitments bears to the Total
Commitment) agree hereby to indemnify and hold harmless each Agent and its
affiliates from and against any and all claims, actions and suits (whether
groundless or otherwise), losses, damages, costs, expenses (including any
expenses for which such Agent or such affiliate has not been reimbursed by the
Borrower as required by (S)17), and liabilities of every nature and character
arising out of or related to this Agreement, the Notes, or any of the other Loan
Documents or the transactions contemplated or evidenced hereby or thereby, or
such Agent's actions taken hereunder or thereunder, except to the extent that
any of the same shall be directly caused by such Agent's willful misconduct or
gross negligence. The covenants of this (S)18.7 shall survive payment or
satisfaction of amounts owing with respect to the Loan Documents.

     (S)18.8.  AGENTS AS LENDERS. In its individual capacity, each Agent shall
               -----------------
have the same obligations and the same rights, powers and privileges in respect
to its Commitment and the Loans made by it, and as the holder of any of the
Notes and as the purchaser of any Letter of Credit Participations, as it would
have were it not also an Agent.

     (S)18.9.  RESIGNATION. Any Agent may resign at any time by giving sixty
               -----------
(60) days prior written notice thereof to the Lenders and the Borrower. Upon any
such resignation, the Majority Lenders shall have the right to appoint a
successor Agent from among the Lenders. Unless a Default or Event of Default
shall have occurred and be continuing, such successor Agent shall be reasonably
acceptable to the Borrower. If no successor Agent shall have been so appointed
by the Majority Lenders and shall have accepted such appointment within thirty
(30) days after the retiring Agent's 
<PAGE>
 
                                      -85-

giving of notice of resignation, then the retiring Agent may, on behalf of the
Lenders, appoint a successor Agent, which shall be a financial institution
having a rating of not less than A or its equivalent by Standard & Poor's
Corporation. Upon the acceptance of any appointment as an Agent hereunder by a
successor Agent, such successor Agent shall thereupon succeed to and become
vested with all the rights, powers, privileges and duties of the retiring Agent,
and the retiring Agent shall be discharged from its duties and obligations
hereunder. After any retiring Agent's resignation, the provisions of this
Agreement and the other Loan Documents shall continue in effect for its benefit
in respect of any actions taken or omitted to be taken by it while it was acting
as Agent.

     (S)18.10. CERTAIN INTERCREDITOR PROVISIONS.
               -------------------------------- 

               (a) Notwithstanding anything to the contrary set forth herein,
     each payment or prepayment of principal and interest received pursuant to
     this Agreement after the occurrence of an Event of Default hereunder shall
     be distributed pro rata among the Lenders, in accordance with the aggregate
     outstanding principal amount of the Obligations owing to each Lender
     divided by the aggregate outstanding principal amount of all Obligations.

               (b) Following the occurrence and during the continuance of any
     Event of Default, each Lender agrees that if, through the exercise of a
     right of banker's lien, setoff or counterclaim against the Borrower,
     including a secured claim under Section 506 of the Bankruptcy Code or other
     security or interest arising from or in lieu of, such secured claim,
     received by such Lender under any applicable bankruptcy, insolvency or
     other similar law or otherwise, such Lender shall obtain payment (voluntary
     or involuntary) in respect of the Notes, the Loans, Reimbursement
     Obligations and other Obligations held by it (other than pursuant to
     (S)8.10, (S)8.11 or (S)8.12) and, as a result, the unpaid principal portion
     of the Notes and the Obligations held by it shall be proportionately less
     than the unpaid principal portion of the Notes and Obligations held by any
     other Lender, it shall be deemed to have simultaneously purchased from such
     other Lender a participation in the Notes and Obligations held by such
     other Lender, so that the aggregate unpaid principal amount of the Notes,
     Obligations and participations in Notes and Obligations held by each Lender
     shall be in the same proportion to the aggregate unpaid principal amount of
     the Notes and Obligations then outstanding as the principal amount of the
     Notes and other Obligations held by it prior to such exercise of banker's
     lien, setoff or counterclaim was to the principal amount of all Notes and
     other Obligations outstanding prior to such exercise of 
<PAGE>
 
                                      -86-

     banker's lien, setoff or counterclaim; provided, however, that if any such
     purchase or purchases or adjustments shall be made pursuant to this section
     and the payment giving rise thereto shall thereafter be recovered, such
     purchase or purchases or adjustments shall be rescinded to the extent of
     such recovery and the purchase price or prices or adjustments restored
     without interest. The Borrower expressly consents to the foregoing
     arrangements and agrees that any Person holding such a participation in the
     Notes and the Obligations deemed to have been so purchased may exercise any
     and all rights of banker's lien, setoff or counterclaim with respect to any
     and all moneys owing by the Borrower to such Person as fully as if such
     Person had made a Loan directly to the Borrower in the amount of such
     participation.

     (S)19.    INDEMNIFICATION. The Borrower agrees to indemnify and hold
               ---------------
harmless the Agents, the Arranger, the Issuing Lender, the Lenders and their
affiliates, as well as their respective shareholders, directors, agents,
officers, subsidiaries and affiliates, from and against any and all damages,
losses, settlement payments, obligations, liabilities, claims, actions or causes
of action, whether statutorily created or under the common law, and reasonable
costs and expenses incurred, suffered, sustained or required to be paid by an
indemnified party by reason of or resulting from the transactions contemplated
hereby, or any claim, litigation, investigation, or other proceeding relating to
any of the foregoing, except, with respect to each indemnified party, any of the
foregoing which result from the gross negligence or willful misconduct of such
indemnified party. In any investigation, proceeding or litigation, or the
preparation therefor, the Agents, the Arranger, the Issuing Lender, the Lenders,
and their affiliates shall be entitled to select their own counsel and, in
addition to the foregoing indemnity, the Borrower agrees to pay promptly the
reasonable fees and expenses of such counsel. In the event of the commencement
of any such proceeding or litigation, the Borrower shall be entitled to
participate in such proceeding or litigation with counsel of its choice at its
expense, and, unless exigent circumstances exist which would preclude such a
meeting, the party claiming indemnification and the Borrower shall meet to
discuss the anticipated fees of legal counsel expected to arise in the course of
such proceeding or litigation. The covenants of this (S)19 shall survive payment
or satisfaction of payment of amounts owing with respect to any Note, any
Reimbursement Obligation, any Letter of Credit, or any other Loan Document.

     (S)20.    TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION.
               --------------------------------------------- 
<PAGE>
 
                                      -87-

     (S)20.1.  SHARING OF INFORMATION WITH SECTION 20 SUBSIDIARY. The Borrower
               -------------------------------------------------
acknowledges that from time to time financial advisory, investment banking and
other services may be offered or provided to the Borrower or one or more of its
Subsidiaries, in connection with this Agreement or otherwise, by a Section 20
Subsidiary. The Borrower, for itself and each of its Subsidiaries, hereby
authorizes (a) such Section 20 Subsidiary to share with the Managing Agent and
each Lender any information delivered to such Section 20 Subsidiary by the
Borrower or any of its Subsidiaries, and (b) the Managing Agent and each Lender
to share with such Section 20 Subsidiary any information delivered to the
Managing Agent or such Lender by the Borrower or any of its Subsidiaries
pursuant to this Agreement, or in connection with the decision of such Lender to
enter into this Agreement; it being understood, in each case, that any such
Section 20 Subsidiary receiving such information shall be bound by the
confidentiality provisions of this Agreement. Such authorization shall survive
the payment and satisfaction in full of all of the Obligations.

     (S)20.2.  CONFIDENTIALITY. Each of the Lenders and the Managing Agent
               ---------------
agrees, on behalf of itself and each of its affiliates, directors, officers,
employees and representatives, to use reasonable precautions to keep
confidential, in accordance with their customary procedures for handling
confidential information of the same nature and in accordance with safe and
sound banking practices, any non-public information supplied to it by the
Borrower or any of its Subsidiaries pursuant to this Agreement that is
identified by such Person as being confidential at the time the same is
delivered to the Lenders or the Managing Agent, provided that nothing herein
shall limit the disclosure of any such information (a) after such information
shall have become public other than through a violation of this (S)20, (b) to
the extent required by statute, rule, regulation or judicial process, (c) to
counsel for any of the Lenders or the Managing Agent, (d) to bank examiners or
any other regulatory authority having jurisdiction over any Lender or the
Managing Agent, or to auditors or accountants, (e) to the Managing Agent, any
Lender or any Section 20 Subsidiary, (f) in connection with any litigation to
which any one or more of the Lenders, the Managing Agent or any Section 20
Subsidiary is a party, or in connection with the enforcement of rights or
remedies hereunder or under any other Loan Document, (g) to a Subsidiary or
affiliate of such Lender as provided in (S)20.1 or (h) to any assignee or
participant (or prospective assignee or participant) so long as such assignee or
participant agrees to be bound by the provisions of (S)22.6.

     (S)20.3.  PRIOR NOTIFICATION. Unless specifically prohibited by applicable
               ------------------
law or court order, each of the Lenders and the Managing Agent shall, prior to
disclosure thereof, notify the Borrower of any request for 
<PAGE>
 
                                      -88-

disclosure of any such non-public information by any governmental agency or
representative thereof (other than any such request in connection with an
examination of the financial condition of such Lender by such governmental
agency) or pursuant to legal process.

     (S)20.4.  OTHER. In no event shall any Lender or the Managing Agent be
               -----
obligated or required to return any materials furnished to it or any Section 20
Subsidiary by the Borrower or any of its Subsidiaries. The obligations of each
Lender under this (S)20 shall supersede and replace the obligations of such
Lender under any confidentiality letter in respect of this financing signed and
delivered by such Lender to the Borrower prior to the date hereof and shall be
binding upon any assignee of, or purchaser of any participation in, any interest
in any of the Loans or Reimbursement Obligations from any Lender.

     (S)21.    SURVIVAL OF COVENANTS, ETC. All covenants, agreements,
               --------------------------
representations and warranties made herein, in the other Loan Documents or in
any documents or other papers delivered by or on behalf of the Borrower pursuant
hereto shall be deemed to have been relied upon by the Agents and the Lenders,
notwithstanding any investigation heretofore or hereafter made by any of them,
and shall survive the making by the Lenders of the Loans as herein contemplated,
and shall continue in full force and effect so long as any amount due under this
Agreement, any Loan Document, any Letter of Credit or any Note remains
outstanding and unpaid or the Lenders have any obligation to make any Loans or
any Issuing Lender has any obligation to issue, extend, or renew Letters of
Credit hereunder. All statements contained in any certificate or other paper
delivered to the Agents, the Issuing Lender, or the Lenders at any time by or on
behalf of the Borrower pursuant hereto or in connection with the transactions
contemplated hereby shall constitute representations and warranties by the
Borrower hereunder.

     (S)22.    ASSIGNMENT AND PARTICIPATION.
               ---------------------------- 

     (S)22.1.  CONDITIONS TO ASSIGNMENT BY LENDERS. Except as provided herein,
               -----------------------------------  
each Lender may assign to one or more Eligible Assignees all or a portion of its
interests, rights and obligations under this Agreement (including all or a
portion of its Commitment and the same portion of the Loans at the time owing to
it, the Notes held by it and its participating interest in the risk relating to
any Letters of Credit); provided that (i) except in the case of an assignment by
a Lender to its affiliate or an existing Lender, the Managing Agent and, if no
Event of Default is then continuing, the Borrower, shall have given prior
written consent to such assignment, such consent not to be unreasonably
withheld, (ii) each such assignment
<PAGE>
 
                                      -89-

shall be of a constant, and not a varying, percentage of all the assigning
Lender's rights and obligations under this Agreement, (iii) each assignment
shall be in an amount that is a whole multiple of $5,000,000 (or an amount
constituting all of such Lender's Commitment), and (iv) the parties to such
assignment shall execute and deliver to the Managing Agent, for recording in the
Register (as hereinafter defined), an Assignment and Acceptance, substantially
in the form of EXHIBIT O hereto (an "Assignment and Acceptance"), together with
any Notes subject to such assignment, an assignment fee in the amount of $3,000
payable by the assigning Lender to the Managing Agent. In addition, if the legal
fees incurred with respect to such assignment exceed $2,500, the assigning
and/or assignee Lenders shall be responsible for the payment of any such excess.
Upon such execution, delivery, acceptance and recording, from and after the
effective date specified in each Assignment and Acceptance, which effective date
shall be at least five (5) Business Days after the execution thereof, (i) the
assignee thereunder shall be a party hereto and, to the extent provided in such
Assignment and Acceptance, have the rights and obligations of a Lender
hereunder, and (ii) the assigning Lender shall, to the extent provided in such
assignment, be released from its obligations under this Agreement.

     (S)22.2.  CERTAIN REPRESENTATIONS AND WARRANTIES; LIMITATIONS; COVENANTS.
               -------------------------------------------------------------- 
By executing and delivering an Assignment and Acceptance, the parties to the
assignment thereunder confirm to and agree with each other and the other parties
hereto as follows:
 
               (a)  other than the representation and warranty that it is the
     legal and beneficial owner of the interest being assigned thereby free and
     clear of any adverse claim, the assigning Lender makes no representation or
     warranty, express or implied, and assumes no responsibility with respect to
     any statements, warranties or representations made in or in connection with
     this Agreement or the execution, legality, validity, enforceability,
     genuineness, sufficiency or value of this Agreement, the other Loan
     Documents or any other instrument or document furnished pursuant hereto;

               (b)  the assigning Lender makes no representation or warranty and
     assumes no responsibility with respect to the financial condition of the
     Borrower or any other Person primarily or secondarily liable in respect of
     any of the Obligations, or the performance or observance by the Borrower or
     any other Person primarily or secondarily liable in respect of any of the
     Obligations or any of their obligations under this Agreement or any of the
     other Loan Documents or any other instrument or document furnished pursuant
     hereto or thereto;
<PAGE>
 
                                      -90-

               (c)  such assignee confirms that it has received a copy of this
     Agreement, together with copies of the most recent financial statements
     referred to in (S)10.4 hereof and such other documents and information as
     it has deemed appropriate to make its own credit analysis and decision to
     enter into such Assignment and Acceptance;

               (d)  such assignee will, independently and without reliance upon
     the assigning Lender, the Agents or any other Lender and based on such
     documents and information as it shall deem appropriate at the time,
     continue to make its own credit decisions in taking or not taking action
     under this Agreement;

               (e)  such assignee represents and warrants that it is an Eligible
     Assignee;

               (f)  such assignee appoints and authorizes each Agent to take
     such action as agent on its behalf and to exercise such powers under this
     Agreement and the other Loan Documents as are delegated to such Agent by
     the terms hereof or thereof, together with such powers as are reasonably
     incidental thereto;

               (g)  such assignee agrees that it will perform in accordance with
     their terms all of the obligations that by the terms of this Agreement are
     required to be performed by it as a Lender;

               (h)  such assignee represents and warrants that it is legally
     authorized to enter into such Assignment and Acceptance; and

               (i)  such assignee acknowledges that it has made arrangements
     with the assigning Lender satisfactory to such assignee with respect to its
     pro rata share of Letter of Credit Fees in respect of outstanding Letters
     of Credit, accrued interest, and Facility Fees.

     (S)22.3.  REGISTER. The Managing Agent shall maintain a copy of each
               --------
Assignment and Acceptance delivered to it and a register or similar list (the
"Register") for the recordation of the names and addresses of the Lenders and
the Commitment Percentages of, and principal amount of the Loans owing to and
Letter of Credit Participations purchased by, the Lenders from time to time. The
entries in the Register shall be conclusive, in the absence of manifest error,
and the Borrower, the Agents and the Lenders may treat each Person whose name is
recorded in the Register as a Lender hereunder for all purposes of this
Agreement. The Register shall be available for inspection by the Borrower and
the Lenders at any reasonable time and from time to time upon reasonable prior
notice.
<PAGE>
 
                                      -91-

     (S)22.4.  NEW NOTES. Upon its receipt of an Assignment and Acceptance
               ---------
executed by the parties to such assignment, together with each Note subject to
such assignment, the Managing Agent shall (i) record the information contained
therein in the Register, and (ii) give prompt notice thereof to the Borrower and
the Lenders (other than the assigning Lenders). Within five (5) Business Days
after receipt of such notice, the Borrower, at its own expense, shall execute
and deliver to the Managing Agent, in exchange for each surrendered Note, a new
Note to the order of such Eligible Assignee in an amount equal to the amount
assumed by such Eligible Assignee pursuant to such Assignment and Acceptance
and, if the assigning Lender has retained some portion of its obligations
hereunder, a new Note to the order of the assigning Lender in an amount equal to
the amount retained by it hereunder. Such new Notes shall provide that they are
replacements for the surrendered Notes, shall be in an aggregate principal
amount equal to the aggregate principal amount of the surrendered Notes, shall
be dated the effective date of such Assignment and Acceptance and shall
otherwise be substantially the form of the assigned Notes. The surrendered Notes
shall be canceled and returned to the Borrower.

     (S)22.5.  PARTICIPATIONS. Each Lender may sell participations to one or
               --------------
more banks or other entities in all or a portion of such Lender's rights and
obligations under this Agreement and the other Loan Documents; provided that (i)
each such participation shall be in an amount of not less than $5,000,000, (ii)
any such sale or participation shall not affect the rights and duties of the
selling Lender hereunder to the Borrower, and (iii) the only rights which such
Lender may grant to the participant pursuant to such participation arrangements
with respect to waivers, amendments or modifications of the Loan Documents shall
be the rights to approve such Lender's vote with respect to waivers, amendments
or modifications that would require the approval of all of the Lenders pursuant
to (S)30 hereof.

     (S)22.6.  DISCLOSURE. The Borrower agrees that in addition to disclosures
               ----------
made in accordance with standard and customary banking practices any Lender may
disclose information obtained by such Lender pursuant to this Agreement to
assignees or participants and potential assignees or participants hereunder;
provided that such assignees or participants or potential assignees or
participants shall agree (i) to treat in confidence such information unless such
information becomes public knowledge other than as a result of any Agent's, any
Lender's or any actual or potential assignee's or participant's breach of its
obligation of confidentiality set forth herein, (ii) not to disclose such
information to a third party, except as required by law or legal process or by a
regulatory authority and (iii) not to make use of such information for purposes
of transactions unrelated to such contemplated assignment or participation.
<PAGE>
 
                                      -92-

     (S)22.7.  ASSIGNEE OR PARTICIPANT AFFILIATED WITH THE BORROWER. If any
               ----------------------------------------------------
assignee Lender is an Affiliate of the Borrower, then any such assignee Lender
shall have no right to vote as a Lender hereunder or under any of the other Loan
Documents for purposes of granting consents or waivers or for purposes of
agreeing to amendments or other modifications to any of the Loan Documents or
for purposes of making requests to the Managing Agent pursuant to (S)18.1 or
(S)18.2, and the determination of the Majority Lenders shall for all purposes of
this Agreement and the other Loan Documents be made without regard to such
assignee Lender's interest in any of the Loans. If any Lender sells a
participating interest in any of the Loans or Reimbursement Obligations to a
participant, and such participant is a Borrower or an Affiliate of a Borrower,
such transferor Lender shall promptly notify the Managing Agent of the sale of
such participation. A transferor Lender shall have no right to vote as a Lender
hereunder or under any of the other Loan Documents for purposes of granting
consents or waivers or for purposes of agreeing to amendments or modifications
to any of the Loan Documents or for purposes of making requests to the Managing
Agent pursuant to (S)18.1 or (S)18.2 to the extent that such participation is
beneficially owned by a Borrower or any Affiliate of a Borrower, and the
determination of the Majority Lenders shall for all purposes of this Agreement
and the other Loan Documents be made without regard to the interest of such
transferor Lender in the Loans to the extent of such participation.

     (S)22.8.  MISCELLANEOUS ASSIGNMENT PROVISIONS. Any assigning Lender shall
               -----------------------------------
retain its rights to be indemnified pursuant to (S)19 with respect to any claims
or actions arising prior to the date of such assignment. If any assignee Lender
is not incorporated under the laws of the United States of America or any state
thereof, it shall, prior to the date on which any interest or fees are payable
hereunder or under any of the other Loan Documents for its account, deliver to
the Borrower and the Agents certification as to its exemption from deduction or
withholding of any United States federal income taxes. Anything contained in
this (S)22 to the contrary notwithstanding, any Lender may at any time pledge
all or any portion of its interest and rights under this Agreement (including
all or any portion of its Notes) to any of the twelve Federal Reserve Banks
organized under (S)4 of the Federal Reserve Act, 12 U.S.C. (S)341. No such
pledge or the enforcement thereof shall release the pledgor Lender from its
obligations hereunder or under any of the other Loan Documents or shall confer
voting rights thereunder to such Federal Reserve Bank.

     (S)23.    PARTIES IN INTEREST. All the terms of this Agreement and the
               -------------------
other Loan Documents shall be binding upon and inure to the benefit of and be
enforceable by the respective successors and assigns of the parties 
<PAGE>
 
                                      -93-

hereto and thereto, provided that the Borrower shall not assign or transfer its
rights hereunder without the prior written consent of each of the Lenders.

     (S)24.    NOTICES, ETC.
               ------------ 

     (S)24.1   GENERAL. Except as otherwise expressly provided in this
               -------
Agreement, all notices and other communications made or required to be given
pursuant to this Agreement or the other Loan Documents shall be in writing and
shall be delivered in hand, mailed by first-class mail, postage prepaid, or sent
by telegraph, telex or telecopier and confirmed by letter, addressed as follows:

               (a) if to the Borrower, at:  40-004 Cook Street, Palm Desert,
     California 92211 (telephone:  (760) 341-8144; telecopy:  (760) 341-1060)
     Attention: CFO;
 
               (b) if to the Managing Agent, at: 100 Federal Street, Boston,
     Massachusetts 02110, Attention: Lindsay W. McSweeney, Vice President
     (telephone:  (617) 434-7211; telecopy:  (617) 434-2160);
 
               (c) if to the Nassau Branch, at Bank of Boston, Nassau
     Operations, MA DED 74-02-02D, 100 Rustcraft Road, Dedham, Massachusetts
     02026, Attention: John J. Kelley (telephone: (617) 467-2081; telecopy:
     (617) 467-2094);
     
               (d) if to the Syndication Agent, the Documentation Agent, any Co-
     Agent, or any Lender, at the appropriate address set forth in SCHEDULE
     2 hereto;
 
     or at such other address for notice as shall last have been furnished in
     writing to the Person giving the notice.
 
     Any such notice or demand shall be deemed to have been duly given or made
and to have become effective (a) if delivered by hand or via overnight delivery
service to a responsible officer of the party to which it is directed, at the
time of the receipt thereof by such officer, (b) if sent by registered or
certified first-class mail, postage prepaid, five (5) Business Days after the
posting thereof, and (c) if sent by telex, telecopy, or cable, at the time of
the dispatch thereof, if in normal business hours in the place of receipt, or
otherwise at the opening of business on the following Business Day.

     (S)24.2.  DEEMED NOTICE. EXCEPT FOR NOTICE OF THE OCCURRENCE OF ANY DEFAULT
               -------------
OR EVENT OF DEFAULT REQUIRED PURSUANT TO (S)10.15, THE 
<PAGE>
 
                                      -94-

AGENTS AND THE LENDERS SHALL BE DEEMED TO HAVE RECEIVED NOTICE OF ANY MATTER
DISCLOSED IN THE FILINGS OF THE BORROWER WITH THE UNITED STATES SECURITIES AND
EXCHANGE COMMISSION AT THE TIME SUCH FILINGS ARE DELIVERED TO THE LENDERS
PURSUANT TO (S)10.4(D).

     (S)25.    MISCELLANEOUS. The rights and remedies herein expressed are
               -------------
cumulative and not exclusive of any other rights which the Agents or the Lenders
would otherwise have. The captions in this Agreement are for convenience of
reference only and shall not define or limit the provisions hereof. This
Agreement and any amendment hereof may be executed in several counterparts and
by each party on a separate counterpart, each of which when so executed and
delivered shall be an original, but all of which together shall constitute one
instrument. In proving this Agreement it shall not be necessary to produce or
account for more than one such counterpart signed by the party against whom
enforcement is sought.

     (S)26.    ENTIRE AGREEMENT, ETC. This Agreement, together with the other
               ---------------------
Loan Documents and any other documents executed in connection herewith or
therewith, express the entire understanding of the parties with respect to the
transactions contemplated hereby. On and after the Closing Date, this Agreement
shall supersede the Prior Credit Agreement. Neither this Agreement nor any term
hereof may be changed, waived, discharged or terminated orally or in writing,
except as provided in (S)30.

     (S)27.    WAIVER OF JURY TRIAL. THE BORROWER HEREBY WAIVES ITS RIGHT TO A
               --------------------
JURY TRIAL WITH RESPECT TO ANY ACTION OR CLAIM ARISING OUT OF ANY DISPUTE IN
CONNECTION WITH THIS AGREEMENT, THE NOTES OR ANY OF THE OTHER LOAN DOCUMENTS,
ANY RIGHTS OR OBLIGATIONS HEREUNDER OR THEREUNDER OR THE PERFORMANCE OF SUCH
RIGHTS AND OBLIGATIONS. EXCEPT AS PROHIBITED BY LAW, THE BORROWER HEREBY WAIVES
ANY RIGHT IT MAY HAVE TO CLAIM OR RECOVER IN ANY LITIGATION REFERRED TO IN THE
PRECEDING SENTENCE ANY SPECIAL, EXEMPLARY, PUNITIVE OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES OTHER THAN, OR IN ADDITION TO, ACTUAL DAMAGES. THE BORROWER (A)
CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF THE AGENTS OR THE LENDERS
HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT THE AGENTS AND THE LENDERS WOULD
NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVERS AND (B)
ACKNOWLEDGES THAT THE AGENTS AND THE LENDERS HAVE BEEN INDUCED TO ENTER INTO
THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS TO WHICH THEY ARE PARTIES BECAUSE
OF, AMONG OTHER THINGS, THE BORROWER'S WAIVERS AND CERTIFICATIONS CONTAINED
HEREIN.
<PAGE>
 
                                      -95-

     (S)28.    SEVERABILITY. The provisions of this Agreement are severable and
               ------------
if any one clause or provision hereof shall be held invalid or unenforceable in
whole or in part in any jurisdiction, then such invalidity or unenforceability
shall affect only such clause or provision, or part thereof, in such
jurisdiction, and shall not in any manner affect such clause or provision in any
other jurisdiction, or any other clause or provision of this Agreement in any
jurisdiction.

     (S)29.    GOVERNING LAW. THIS AGREEMENT AND EACH OF THE OTHER LOAN
               -------------
DOCUMENTS ARE CONTRACTS UNDER THE LAWS OF THE COMMONWEALTH OF MASSACHUSETTS AND
SHALL BE DEEMED TO BE DOCUMENTS UNDER SEAL AND SHALL FOR ALL PURPOSES BE
CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF SAID COMMONWEALTH
(EXCLUDING THE LAWS APPLICABLE TO CONFLICTS OR CHOICE OF LAW). THE BORROWER
CONSENTS TO THE JURISDICTION OF ANY OF THE FEDERAL OR STATE COURTS LOCATED IN
THE COMMONWEALTH OF MASSACHUSETTS IN CONNECTION WITH ANY SUIT TO ENFORCE THE
RIGHTS OF THE AGENTS AND THE LENDERS UNDER THIS AGREEMENT OR ANY OF THE OTHER
LOAN DOCUMENTS.

     (S)30.    CONSENTS, AMENDMENTS, WAIVERS, ETC. Any consent or approval
               ---------------------------------- 
required or permitted by this Agreement to be given by the Lenders may be given,
and any term of this Agreement, the other Loan Documents or any other instrument
related hereto or mentioned herein may be amended, and the performance or
observance by the Borrower of any terms of this Agreement, the other Loan
Documents or such other instrument or the continuance of any Default or Event of
Default may be waived (either generally or in a particular instance and either
retroactively or prospectively) with, but only with, the written consent of the
Borrower and the written consent of the Majority Lenders. Notwithstanding the
foregoing, (a) the rate of interest on the Notes, the amount of any
Reimbursement Obligations, the amount of the Commitments of the Lenders, the
Revolving Credit Commitment, the Multicurrency Commitment, the Total Commitment,
the amount or date of any scheduled payment or mandatory prepayment, and the
amount of Facility Fees or Letter of Credit Fees hereunder may not be changed
without the written consent of the Borrower and the written consent of all of
the Lenders; (b) the Maturity Date may not be postponed, the Term Out Date may
not be extended, and the scheduled payment dates of the Term Loan may not be
changed without the written consent of all of the Lenders, (c) the definition of
Majority Lenders and the provisions of (S)23 and this (S)30 may not be amended
without the written consent of all of the Lenders; (d) the amount of 
<PAGE>
 
                                      -96-

any Letter of Credit Fees payable for any Issuing Lender's account may not be
amended without the written consent of the Issuing Lender, and (e) (S)18 may not
be amended without the written consent of the Managing Agent. No waiver shall
extend to or affect any obligation not expressly waived or impair any right
consequent thereon. No course of dealing or delay or omission on the part of any
Agent, the Issuing Lender, or any Lender in exercising any right shall operate
as a waiver thereof or otherwise be prejudicial thereto. No notice to or demand
upon the Borrower shall entitle the Borrower to other or further notice or
demand in similar or other circumstances.
 
                            [Signature Pages Follow]
<PAGE>
 
          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be signed under seal by their duly authorized officers as of the day and year
first above written.
                                        
THE BORROWER
- ------------

UNITED STATES FILTER
CORPORATION
 
 
By:  /s/ Kevin L. Spence
     ----------------------------
     Name:  Kevin L. Spence
     Title: Senior Vice President


THE LENDERS:
- ------------
 
BANKBOSTON, N.A., f/k/a                       DLJ CAPITAL FUNDING, 
The First National Bank of Boston,            INC., individually and as 
individually and as Managing Agent            Documentation Agent
 
 
                                                
By:  /s/ Lindsay W. McSweeney
     ----------------------------
     Name:  Lindsay W. McSweeney              By:  /s/ Stephen P. Hickey
     Title: Vice President                       ------------------------------
                                                 Name:  Stephen P. Hickey
                                                 Title: Managing Director

ABN AMRO BANK N.V., LOS                       DEUTSCHE BANK AG, NEW 
ANGELES INTERNATIONAL                         YORK AND/OR CAYMAN
BRANCH                                        ISLANDS BRANCHES, 
                                              individually and as Co-Agent
 
 
By:   /s/ Matthew S. Thompson
    -----------------------------
     Name:  Matthew S. Thompson               By:  /s/ Jean M. Hannigan
     Title: Group Vice President/Director         -----------------------------
                                                  Name:  Jean M. Hannigan
                                                  Title: Vice President
By:   /s/ John A. Miller
    -----------------------------
     Name:  John A. Miller
     Title: Group Vice President              By:  /s/ Susan L. Pearson
                                                  -----------------------------
                                                  Name:  Susan L. Pearson
                                                  Title: Vice President
<PAGE>
 
THE BANK OF NEW YORK,                         BANK OF AMERICA 
individually and as Lead Manager              NATIONAL TRUST AND
                                              SAVINGS ASSOCIATION 
                                              (SUCCESSOR BY MERGER TO
                                              BANK OF AMERICA ILLINOIS), 
                                              individually and as Co-Agent
By:  /s/ Jonathan Rollins
    --------------------------------
     Name:  Jonathan Rollins
     Title: Assistant Vice President
                                              By:  /s/ Venita E. Fields
                                                  -----------------------------
                                                   Name:  Venita E. Fields
                                                   Title: Senior Vice President
 
THE SUMITOMO BANK, LIMITED                    FLEET BANK, N.A., 
(LOS ANGELES BRANCH)                          individually and as Lead 
                                              Manager
 
By:  /s/ Goro Hirai
    --------------------------------
     Name:  Goro Hirai                        By:  /s/ Christopher Mayrose
     Title: Joint General Manager                  --------------------------
                                                    Name:  Christopher Mayrose
                                                    Title: Vice President
 
CREDITO ITALIANO                              BANQUE NATIONALE DE 
                                              PARIS, individually and as Lead 
                                              Manager
 
By: /s/ Gianfranco Bisagni                    By:  /s/ Clive Bettes
   ----------------------------                   ----------------------------
     Name:  Gianfranco Bisagni                     Name:  Clive Bettes
     Title: First Vice President                   Title: Senior Vice President
                                                           & Manager
 
By:  /s/ Umberto Seretti                      By:  /s/ Mitchell Ozawa
    ----------------------------                  -----------------------------
     Name:  Umberto Seretti                        Name:  Mitchell Ozawa
     Title: Vice President                         Title: Vice President
 
<PAGE>
 
NATIONSBANK, N.A.,                            THE LONG-TERM CREDIT 
individually and as Syndication Agent         BANK OF JAPAN LTD. (LOS  
                                              ANGELES AGENCY)
 
 
 
By:  /s/ Chas A. McDonell                     By: /s/ Teiji Sakata
   ------------------------------------          -------------------------------
    Name:  Chas A. McDonell                       Name:  Teiji Sakata
    Title: Vice President                         Title: Joint General Manager
 
 
UNION BANK OF                                 THE SANWA BANK LIMITED, 
CALIFORNIA, N.A.,                             LOS ANGELES BRANCH, 
individually and as Co-Agent                  individually and as Lead Manager
 

                                              By:  /s/ Steven Yamada
By:  /s/ Susan K. Johnson                        ------------------------------
   --------------------------------              Name:   Steven Yamada
    Name:  Susan K. Johnson                      Title:  Vice President
    Title: Vice President
 
 
BANQUE PARIBAS,                               BHF-BANK 
individually and as Lead Manager              AKTIENGESELLSCHAFT
 

                                              By:  /s/ Linda M. Pace
                                                  ----------------------------
                                                  Name:  Linda M. Pace
By:  /s/ Matthew C. Bishop                        Title: Vice President
   ------------------------------                     
     Name:  Matthew C. Bishop
     Title: Associate                         By:  /s/ Dan Dobrjanskyj
                                                  ----------------------------
                                                    Name:  Dan Dobrjanskyj
                                                    Title: Assistant Vice 
                                                             President
By:  /s/ Lynne A. Weders
   ------------------------------
     Name:  Lynne A. Weders
     Title: Director
 
THE SAKURA BANK, LIMITED                      THE INDUSTRIAL BANK OF 
                                              JAPAN, LIMITED (LOS 
                                              ANGELES AGENCY)
 
By:  /s/ Yasuhiro Terada
   ------------------------------             By:  /s/ Vicente L. Timiraos
     Name:  Yasuhiro Terada                       ---------------------------- 
     Title: Senior Vice President                 Name:  Vicente L. Timiraos
                                                  Title: Sr. Vice President
                                                          and Senior Manager
 

<PAGE>
 
                                                                  EXHIBIT 23.02
 
                         INDEPENDENT AUDITORS' CONSENT
 
To the Board of Directors and Shareholders
United States Filter Corporation:
 
  We consent to the use of our report incorporated by reference herein and the
reference to our firm under the heading "Independent Certified Public
Accountants" in the Prospectus.
 
/s/ KPMG Peat Marwick LLP
- ---------------------
KPMG PEAT MARWICK LLP
 
Orange County, California
November 3, 1997

<PAGE>
 
                                                                  EXHIBIT 23.03
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
  As independent public accountants, we hereby consent to the use of our
report dated April 11, 1997 and to all references to our Firm included in or
made a part of this Form S-4, Registration Statement File No. 333-    .
 
                                                      /s/ Arthur Andersen LLP
                                                        -----------------------
                                                          ARTHUR ANDERSEN LLP
 
New York, New York
November 3, 1997

<PAGE>
 
                                                                   EXHIBIT 99.01

                                 FORM OF PROXY

                            PURO WATER GROUP, INC.

                THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS
                            OF PURO WATER GROUP, INC.
         SPECIAL MEETING OF STOCKHOLDERS TO BE HELD DECEMBER 10, 1997
 
    The undersigned holder of shares of Common Stock, par value $.0063 per share
    ("Puro Common Stock") of Puro Water Group, Inc., a Delaware corporation 
    ("Puro") hereby appoints Scott Levy and Jack C. West, individually, with 
    full power of substitution in each of them, as proxy or proxies to represent
    the undersigned and vote all shares of Puro Common Stock which the 
    undersigned would be entitled to vote if personally present and voting at 
    the Special Meeting of Stockholders of Puro to be held on December 10, 1997
    at 10:00 a.m., local time, at Puro's principal executive offices at 56-24
    58th Street, Maspeth, New York and at any adjournment or postponement 
    thereof, upon all matters coming before such meeting. Said proxies are 
    directed to vote as set forth below and, in their discretion, upon such 
    other matters as may properly come before the meeting.

        Approval and adoption of the Agreement and Plan of Merger, dated
        as of October 8, 1997 (the "Merger Agreement"), among United
        States Filter Corporation, a Delaware corporation ("U.S. Filter"),
        USF/PW Acquisition Corporation, a newly formed Delaware corporation
        and a wholly owned subsidiary of U.S. Filter ("Sub"), and Puro,
        and the transactions contemplated thereby, including the merger
        of Sub with and into Puro, pursuant to which, among other things,
        Puro will become a wholly owned subsidiary of U.S. Filter and each
        outstanding share of Puro Common Stock will be converted into the
        right to receive a fraction of a share of the Common Stock of U.S.
        Filter, par value $.01 per share ("U.S. Filter Common Stock"),
        determined by dividing $7.20 by the average market price of the
        U.S. Filter Common Stock during the 10 consecutive trading dates
        beginning on the 16th trading day prior to the Puro Special
        Meeting of Stockholders.

    Please mark, sign, date and return the proxy card promptly       SEE REVERSE
    using the enclosed postage paid envelope.                            SIDE

 
<PAGE>
 
[X]  Please mark your
     votes as in this
     example

This proxy is solicited on behalf of the Board of Directors of Puro Water Group,
Inc. When properly executed, this proxy will be voted as directed herein by the 
undersigned stockholder. If no direction is given, this proxy will be voted FOR 
approval and adoption of the Merger Agreement and the transactions contemplated 
thereby. In their discretion, the proxies are authorized to vote upon such other
business as may properly come before the meeting.

The Board of Directors recommends a vote FOR approval and adoption of the Merger
Agreement and the transactions contemplated thereby.


1. APPROVAL AND         FOR       WITHHELD  2. OTHER BUSINESS. The proxies shall
   ADOPTION OF         [   ]       [   ]       be authorized to vote on any
   MERGER                                      other business properly brought
   AGREEMENT                                   before the meeting and any   
(see opposite side)                            adjournments or postponements
                                               thereof in accordance with their
                                               discretion.


SIGNATURE(S)                         DATE
            ------------------------     ------------
NOTE: Please sign EXACTLY as you name appears hereon. When signing as executor,
trustee, etc., or as officer of a corporation, give full title as such. For
joint accounts, please obtain both signatures.







    


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