3M Aqua-Pure AP811 Whole House Water Filter Replacement Cartridge

Price: $31.99
Availability: In stock
Fits any brand of whole house water filter system that uses standard 9 3/4 x 4 1/2 filter cartridges
  • Ships fast!
  • Reduces sediment and rust
  • Serves great tasting water for up to six months!
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After a quick and easy installation, the 3M Aqua-Pure AP811 whole house water filter replacement cartridge will significantly reduce sediment and rust before it has a chance to ruin the flavor of your water! For use with 3M Aqua-Pure whole house water filtration systems that use 9-3/4 inch x 4-1/2 inch water filters and any brand of whole house filtration system that uses standard 9-3/4 x 4-1/2 filter cartridges. Replace every four months for best results. Order the 3M Aqua-Pure AP811 whole house water filter replacement cartridge today.
Package Qty 1
Used In Brands Aqua-Pure
Manufacturer's Id AP811
UPC 016145165108
Advertised Size (in) 10 x 4-1/2
Actual Size (in) 9 3/4 inches (length) x 4 1/2 inches (outside diameter)
Actual Size (cm) 24.77 x 11.43
Media Spun Wound Grooved Polypropylene
Primary Filter Media Polypropylene
Filter Life (months) 4 months
Micron Rating (Nominal) 25
Operating Pressure (psi) 0 - 100
Operating Temperature (°F) 40 - 100
Operating Temperature (°C) 4.4 - 37.8
Flow Rate (gpm) 20.00
Flow Rate (lpm) 75.71

The AQUAPURE-AP811 is comparable with the following part numbers

5577904 15535543 155355-43 55779-04
56122-03 70020170547 Ametek / Pentek DGD 7525 AP801
AP801-1.5C AP801-C AP801T-C AP802
AP802-1.5C AP810T-C AP811 AP-811
WHCFGD25BB WHCF-GD25BB 5618904 4RP82

The AQUAPURE-AP811 fits the following model numbers


Installation Guide

User Guide


  1. The 3M Aqua-Pure AP811 water filter needs to be replaced every 3-4 months. The filter may need to be replaced sooner depending on your water quality and your water usage
  2. Turn off incoming water
  3. Bleed pressure from the unit by depressing the red button on top of unit
  4. Remove housing by sliding wrench up toward head then turn left to unscrew
  5. Wipe housing clean and insert new cartridge
  6. Lubricate o-ring and screw housing into head
  7. Turn water back on

Reset Instructions