UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                 ----------------------------------------------

                                    FORM 8-K
                                 Current Report
                       PURSUANT TO SECTION 13 OR 15(d) OF
                     THE SECURITIES AND EXCHANGE ACT OF 1934

        Date of Report (date of earliest event reported): August 20, 2003

                                CUNO INCORPORATED
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

                                    Delaware
                 (State or other jurisdiction of incorporation)

              000-21109                                 06-1159240
              ---------                                 ----------
       (Commission File Number)             (IRS Employer Identification No.)


               400 Research Parkway
               Meriden, Connecticut                              06450
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    (Address of principal executive offices)                   (Zip Code)


                                 (203) 237-5541
              (Registrant's telephone number, including area code)

                                 NOT APPLICABLE
          (Former name or former address, if changed since last report)










                           FORWARD LOOKING INFORMATION
                           ---------------------------

The Securities and Exchange Commission encourages companies to disclose
forward-looking information so that investors can better understand a company's
future prospects and make informed investment decisions. Also, we want to
provide stockholders and investors with more meaningful and useful information
and, therefore, this report may describe our beliefs regarding business
conditions and the outlook for the Company, which reflects currently available
information. These forward looking statements are subject to risks and
uncertainties which, as described in the Company's reports filed with the
Securities and Exchange Commission, could cause the Company's actual results or
performance to differ materially from those expressed herein. The Company
assumes no obligation to update the information contained in this report.


                    INFORMATION TO BE INCLUDED IN THE REPORT


ITEM 7.   FINANCIAL STATEMENTS AND EXHIBITS

   (a)  Not applicable.
   (b)  Not applicable
   (c)  Exhibits


         19 Press release dated August 20, 2003


ITEM 9.   REGULATION FD DISCLOSURE

Attached hereto as Exhibit 19 is the text of CUNO Incorporated announcement
regarding the third quarter of fiscal 2003 earnings results which is
incorporated herein by reference.



Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


Date     August 20, 2003
     ----------------------
CUNO Incorporated



By /s/Mark G. Kachur
   -----------------
Mark G. Kachur
Chairman of the Board of Directors,
President and Chief Executive Officer


By /s/ Frederick C. Flynn, Jr.
   ---------------------------
Frederick C. Flynn, Jr.
Senior Vice President -
Finance and Administration,
Chief Financial Officer,
Controller and Assistant Secretary






                                CUNO INCORPORATED
                                  EXHIBIT INDEX


Exhibit Number             Description
- --------------             -----------
19                         Press Release dated August 20, 2003