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3M Purification Inc. warrants 

the stainless steel head (excluding disposable fi lter cartridge(s)) to be free from defects in material and workmanship for 

twenty-fi ve (25) years from the date of purchase. 

 The disposable filter cartridge or membrane is warranted from defects in material and workmanship 

for a period of one (1) year from the date of purchase.

 This warranty does not cover failures resulting from abuse, misuse, alteration or damage not 

caused by 3M Purification Inc. or failure to follow installation and use instructions. No warranty is given as to the service life of any filter cartridge 
or membrane as it will vary with local water conditions and water consumption. 3

M PURIFICATION INC. MAKES NO OTHER WARRANTIES OR 

CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY OR 
FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOMER OR 
USAGE OF TRADE. 

 If the Product fails to satisfy this Limited Warranty during the warranty period, 3M Purification Inc. will replace the Product or 

refund your Product purchase price.   This warranty does not cover labor.  

The remedy stated in this paragraph is Customer’s sole remedy and 3M 

Purification Inc.’s exclusive obligation.  

This warranty gives you specific legal rights, and you may have other rights which may vary from state to state, or country to country.  For any 
warranty questions, please call 1-800-222-7880 or mail your request to: Warranty Claims, 3M Purification Inc., 400 Research Parkway, Meriden, 
CT 06450.  Proof of purchase (original sales receipt) must accompany the warranty claim, along with a complete description of the Product, model 
number and alleged defect. 

Limitation of Liability.

  3M Purification Inc. will not be liable for any loss or damage arising from this 3M Purification Inc. product, whether direct, 

indirect, special, incidental, or consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.  Some 
states and countries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not 
apply to you.  

LIMITED WARRANTY

FILTER CARTRIDGE REPLACEMENT INSTRUCTIONS

Filter life depends on local water conditions and the volume of water 
used. The disposable filter cartridge MUST be replaced every 12 
months, at the rated capacity or sooner if a noticeable reduction in flow 
rate occurs. 

NOTE:

 Before changing cartridge, turn off water supply. Place a bucket 

under filter to catch the small amount of water that will run out after 
cartridge removal.

1.  Close shut-off valves before and after filter head (upstream and  

 

  downstream valves 2 and 3).

2.  Slide cartridge locking latch to the right and lift up.

3.  With both hands, twist out filter cartridge by turning unit 90° to the    
  left and down.

4.  Install new replacement cartridge into head by pushing cartridge up 

and turning to the right until locking latch clicks into place.

5.  Open faucet downstream of filter.

6.  Open valves 2 and 3. Flush no less than 10 gallons (approximately 15 

minutes) through system before use.

TROUBLESHOOTING GUIDE

Water Leaks at Fittings:

Check solder joints, unions and cartridge and head connection

Shut off water at the main water supply shut-off valve, 

remove threaded fittings, reapply PTFE tape in a clockwise (to the right) direction and screw back onto head assembly.

CAUTION

To reduce the risk associated with property damage due to water leakage:

 

• 

The disposable fi lter cartridge 

MUST

 be replaced every 12 months or at the rated capacity or if a noticable reduction 

in fl ow rate occurs.

 

Step 2

Step 3

Step 5

Summary of Contents for AP902 Series

Page 1: ...tained in these instructions prior to installation and use of the 3M Water Filtration Products AP902 AP903 Series Whole House Water Filters Retain these instructions for future reference The AP902 AP9...

Page 2: ...Torch not shown G Plumbing Solder not shown H Plumbing Flux not shown GETTING STARTED City Water Installation Well Water Installation Master Shut Off Valve To Household Plumbing Pump Master Shut Off V...

Page 3: ...ad Make sure internal key ring is positioned correctly by rotating to the right until it snaps into place 8 Turn main water supply back on While water is running thru faucet close valves 2 and 3 valve...

Page 4: ...t Limitation of Liability 3M Purification Inc will not be liable for any loss or damage arising from this 3M Purification Inc product whether direct indirect special incidental or consequential regard...

Page 5: ...e La instalaci n y la utilizaci n del producto DEBEN cumplir con todas las normas de plomer a estatales y locales Evite el congelamiento quite el cartucho cuando las temperaturas puedan ser inferiores...

Page 6: ...ta o D Cinta de plomer a E Llave ajustable F Linterna No se muestra G Soldadura para tuber as No se muestra H Fundente para tuber as No se muestra PRECAUCI N Para reducir el riesgo asociado con da os...

Page 7: ...ltro y la derivaci n recomendada 4 Instale el cabezal del filtro en el sistema de derivaci n opcional como se muestra en la Figura 1 Utilice tres v lvulas de bola y una unidad de filtraci n como se mu...

Page 8: ...ano de obra durante veinticinco 25 a os desde la fecha de compra El cartucho de filtro desechable o la membrana tienen garant a por un per odo de un 1 a o desde la fecha de compra en lo que respecta a...

Page 9: ...du gel et retirer la cartouche si la temp rature ambiante doit descendre sous les 4 4 C 40 F Ne pas installer sur la canalisation d alimentation en eau chaude La temp rature maximum de fonctionnement...

Page 10: ...glable F Chalumeau Pas illustr G Brasure de plomberie Pas illustr H D capant de plomberie Pas illustr ATTENTION A n de r duire les risques de dommages mat riels associ s aux fuites d eau L installati...

Page 11: ...fin d installer la t te de filtre et la d rivation recommand e 4 Fixer la t te du filtre sur le syst me de d rivation facultatif comme le montre la figure 1 Utiliser trois robinets tournant sph rique...

Page 12: ...at riel et de main d oeuvre pendant un 1 an partir de la date de l achat Cette garantie ne couvre pas les d fectuosit s occasionn es par une utilisation abusive ou le m susage l alt ration ou le domma...

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