SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                   FORM 12B-25

                                                   Commission File Number 1-8147

                           NOTIFICATION OF LATE FILING

(Check One):  |X| Form 10-K   |_| Form 11-K     |_| Form 20-F     |_| Form 10-Q

|_| Form N-SAR
         For Period Ended:  September 30, 1999
                            ------------------
                                                       
|_| Transition Report on Form 10-K                        |_| Transition Report on Form 10-Q
|_| Transition Report on Form 20-F                        |_| Transition Report on Form N-SAR
|_| Transition Report on Form 11-K



         For the Transition Period Ended:  N/A

         Nothing in this form shall be construed to imply that the Commission
has verified any information contained herein.

         If the notification relates to a portion of the filing checked above,
identify the item(s) to which the notification relates: N/A
                                                        -----------

                                     PART I
                             REGISTRANT INFORMATION

Full name of registrant  MEDIQ Incorporated
                        ------------------------------------------

Former name if applicable
                                     N/A
                         --------------------------------------

Address of principal executive office (Street and number)

                                     One MEDIQ Plaza
                         --------------------------------------

City, state and zip code  Pennsauken, New Jersey  08110
                         --------------------------------------


                                     PART II
                             RULE 12b-25 (b) AND (c)

         If the subject report could not be filed without unreasonable effort or
expense and the registrant seeks relief pursuant to Rule 12b-25(b), the
following should be completed. (Check box if appropriate.)

          (a)  The reasons described in reasonable detail in Part III of this
               form could not be eliminated without unreasonable effort or
               expense;

|X|       (b)  The subject annual report, semi-annual report, transition report
               on Form 10-K, |X| 20-F, 11-K or Form N-SAR, or portion thereof
               will be filed on or before the 15th calendar day following the
               prescribed due date; or the subject quarterly report or
               transition report on Form 10-Q, or portion thereof will be filed
               on or before the fifth calendar day following the prescribed due
               date; and

          (c)  The accountant's statement or other exhibit required by Rule
               12b-25(c) has been attached if applicable.

                                    PART III
                                    NARRATIVE

         State below in reasonable detail the reasons why Form 10-K, 11-K, 20-F,
10-Q, N-SAR or the transition report portion thereof could not be filed within
the prescribed time period. (Attach extra sheets if needed.)

         MEDIQ Incorporated is unable to file its Annual Report on Form 10-K for
the fiscal year ended September 30, 1999 within the prescribed time period
without unreasonable effort or expense due to unforeseen delays in the
collection and review of information and documents.




                                     PART IV
                                OTHER INFORMATION

         (1) Name and telephone number of person to contact in regard to this
notification:


 Jay M. Kaplan, Senior Vice President           (856)             662-3200
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      (Name)                                  (Area Code)    (Telephone Number)

         (2) Have all other periodic reports required under Section 13 or 15(d)
of the Securities Exchange Act of 1934 or Section 30 of the Investment Company
Act of 1940 during the preceding 12 months or for such shorter period that the
registrant was required to file such report(s) been filed? If the answer is no,
identify report(s).
                                                                  |X| Yes |_| No

         (3) Is it anticipated that any significant change in results of
operations from the corresponding period for the last fiscal year will be
reflected by the earnings statements to be included in the subject report or
portion thereof?
                                                                  |_| Yes |X| No

         If so: attach an explanation of the anticipated change, both
narratively and quantitatively, and, if appropriate, state the reasons why a
reasonable estimate of the results cannot be made.

                               MEDIQ Incorporated
                     --------------------------------------
                  (Name of Registrant as Specified in Charter)

Has caused this notification to be signed on its behalf by the undersigned
thereunto duly authorized.

Date:  December 29, 1999                    By:  /s/ Jay M. Kaplan
     ------------------------                    -------------------------
                                                 Jay M. Kaplan
                                                 Senior Vice President

                  INSTRUCTION. The form may be signed by an executive officer of
         the registrant or by any other duly authorized representative. The name
         and title of the person signing the form shall be typed or printed
         beneath the signature. If the statement is signed on behalf of the
         registrant by an authorized representative (other than an executive
         officer), evidence of the representative's authority to sign on behalf
         of the registrant shall be filed with the form.

                                    ATTENTION

         Intentional misstatements or omissions of fact constitute Federal
criminal violations (see 18 U.S.C. 1001).