Exhibit 99.01



          Strictly Private & Confidential
          _______________________________

          Messrs.
          Rossi & Partners Ltd.
          10th Floor, Bowater House West
          114 Knightsbridge
          London
          SW1X7LT
          United Kingdom

          For the attention of Mr. Francesco M. Rossi
          ___________________________________________


                                                            30 May 1996

          Dear Sirs:

          Further to our meeting in Manchester on May 23 and 24, the
          following outlines our agreement with respect to the engagement
          by United States Filter Corporation ("USF") of Rossi & Partners
          Ltd. ("R&P") as financial adviser in relation to the possible
          acquisition of the Process Equipment Division of United Utilities
          ("UU") which includes the following companies:  Envirex, Wallace
          & Tiernan, General Filter, Edwards & Jones, Asdor, Consolidated
          Electric and Acumem.  R&P agrees to work exclusively on behalf of 
          USF with regard to the below outlined transaction.

          1.   Scope of work

               The tasks undertaken by R&P, in relation to this
               transaction, may include all or any of the following.

               a.   advice on the strategic matters to be addressed in
                    relation to the proposed acquisition;

               b.   advice during the initial discussions with UU;

               c.   advice on the terms and conditions of the transaction;

               d.   assistance in the negotiations with the Board of UU and
                    its advisers.

          2.   Remuneration

               In connection with these services, USF agrees to pay an
               initial retainer of US$20,000, payable on the signing of
               this letter.  Funds paid to date will be credited against
               the $20,000.


               In the event USF, herewith intended as USF and or any of its
               subsidiaries, enters into a definitive agreement to acquire
               all or parts of UU's Process Equipment Division which
               subsequently results in an acquisition transaction, USF
               agrees to pay R&P or a company indicated by R&P, a
               transaction fee of 1% based on the aggregate transaction
               value, payable in cash upon closing.  It is understood that
               such fee may be paid by a party other than USF.

               For the purpose of this letter, the term "transaction value"
               means an amount equal to the sum of any cash consideration
               paid or the aggregate fair market value of any securities
               issued.

               USF hereby agrees to pay all disbursements, travel and other
               outlays or expenses reasonably incurred by R&P in connection
               with this appointment, such expenses to be approved in
               advance.  USF acknowledges that it will be responsible for
               all other expenses in connection with the appointment, 
               including, inter alia, all accountancy, legal and other
               professional expenses, including legal advice, but in all
               cases to be approved in advance in writing.

          3.   Indemnification Clause

               USF agrees that it will indemnify and hold harmless R&P, its
               directors, employees, agents and controlling persons (each
               being an "Indemnified Party") from and against all losses,
               claims, damages, liabilities and expenses, joint or several
               (including all reasonable fees of counsel and other expenses
               incurred by any Indemnified Party in connection with the
               preparation for, or defense of, any claim, action or
               proceeding, whether or not resulting in any liability), to
               which such Indemnified Party may become subject under any
               applicable laws or otherwise, related to or arising out of
               the engagement of R&P, pursuant to this letter.  USF will
               not be liable under the foregoing indemnification provision
               to the extent that any loss, claim, damage, liability or
               expense is found to have resulted primarily from R&P's bad
               faith or gross negligence.

          4.   Termination

               This agreement shall remain in force until further notice. 
               However, USF may terminate the agreement without cause at
               any time by written notice to R&P.  R&P reserves the right
               to terminate their engagement hereunder at any time and
               without liability or continuing obligation to USF. 
               Termination of this agreement by any party shall not affect
               either R&P's indemnification or R&P's right to receive fees
               if the acquisition of the Process Equipment Division takes
               place within two years of the termination date of this
               agreement.




          5.   Governing Law

               This agreement shall in all respects be governed by, and
               construed and enforced in accordance with the English laws.

          6.   Arbitration Clause

               Any dispute arising with respect to, or in connection with,
               our engagement shall be finally decided by a panel of three
               arbitrators in accordance with the Rules of International
               Arbitration of the Chamber of Commerce of Geneva, it being
               understood that the chairman of any panel shall be designed
               directly by the above mentioned Chamber of Commerce and the
               other two panelists shall be appointed one each by each of
               the parties.  In case an agreement is not reached the
               appointment of a panelist shall be made by the above Chamber
               of Commerce.  Unless otherwise agreed in writing to by the
               parties, the arbitrators shall be fluent in English
               language. The cost of any arbitration will be assessed
               against the unsuccessful party and the arbitrators will be
               required to make such cost part of any ruling issued by
               them.  

          Yours faithfully,

          /s/ Richard J. Heckmann

          Richard J. Heckmann


          Accepted as of the date first written above.

          Rossi & Partners Ltd.

          By /s/ Francesco M. Rossi