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3M Aqua-Pure AP903 High Flow SQC CTO Sediment/Carbon Filter System

3M AP903 High Flow SQC Sediment/Carbon Filtration Systems
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NSF Certified 

Ideal for larger homes and light commercial applications

High Flow SQC CTO Filter System

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Model: AP903
Part Number: 56211-02
Alt. Part Number: 70020204361
Typically ships within 2 business days.
MSRP: $441.59
Price: $240.17 

3M AP903 High Flow SQC Sediment/Carbon Filtration Systems Features:

  • 304 stainless steel head allows for "sweat in place" installation and is a non-corrosive material.
  • Sanitary Quick Change (SQC) design, an industry first for this application, allows for fast and easy cartridge change- outs without the need of a filter wrench.
  • Cartridges are sanitary in design, requiring no contact with the filter media during cartridge change-out.
  • Filter cartridge:
    • Incorporates carbon block filtration with a non-woven blended pleat media.
    • Requires no pre-activation.
    • Has o-ring seal type.
  • 25 year limited warranty on stainless steel head.
  • Manufactured from FDA CFR-21 compliant materials.


  • System includes:
    • Head assembly w/ integral mounting bracket
    • Single cartridge filter
  • Filter rating: 5 Mic Nominal
  • Flow rate: 20 GPM
  • Capacity: 100,000 gallons (approx. 1 year)
  • Inlet/Outlet connections: 1" NPT
  • Max operating pressure:  125 PSI @ 100 F
  • Dimensions: 25 1/6" Height x 4 1/2" Diameter (additional 3" recommended for cartridge removal)
  • Weight: 7.5 lbs. (3.4kg)
  • Warranty: 25 Year limited 
  • Replacement cartridge: AP917R (5621003)

3M 5621102 Aqua-Pure AP903 Additional Specifications

Filter Specifications
Quick Change
Chlorine/Taste/Odor, Sediment/Dirt/Rust
5 µm
1" NPT
Aqua-Pure - 3M Purification
25-1/16" (63.7 cm)
4.5" (11.4 cm)
Operating Conditions
25 - 125 psi
20 gpm
40 - 100 °F
Filter Life
100,000 Gallons
Materials of Construction
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