The Aqua-Pure by Cuno AP811-2 water filter replacement cartridge reduces dirt and rust up to 25 microns. This Aqua-Pure larger diameter dirt and rust cartridge is for larger homes and commercial applications. The AquaPure AP811-2 dirt & rust water filter cartridge is made from an exclusive process using pure white celluose fibers. As water passes from the outer surfaces into the center of the cartridge, the filtering pores become increasingly smaller to remove even microscopic particles. Unlike string-wound and pleated paper cartridges, the rigid, sturdy construction of the Aqua-Pure cartridges are able to withstand high pressure drop and stressful conditions such as water hammer.
CUNO Aqua-Pure AP-811-2 Water Filter Specs:
Dimensions: 19 7/8” L x 4 5/8” W
25 Micron Nominal Filtration
Flow Rate: 45 gpm / 170.3 lpm
Dirt and Rust Reduction
Graded Density for Long Life (up to 30% longer!)
Rigid Construction Withstands Stressful Conditions
Use on Hot & Cold Water (up to 100° F)
Made from FDA (CFR 21) Compliant Materials
Medium sediment removal
Housings for the CUNO AquaPure AP811-2 Water Filter:
AquaPure AP802 Whole House System
AquaPure AP802-1.5 Whole House System
AquaPure AP802-1.5-C Whole House System
CUNO Aqua-Pure AP811-2 Replacement Water Filter Instructions:
The AquaPure AP811-2 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.
Instructions on how to change the CUNO Aqua-Pure AP811-2 Replacement Water Filter Cartridge:
Turn off incoming water
Bleed pressure from the unit by depressing the red button on top of unit
Remove housing by sliding wrench up toward head then turn left to unscrew
Wipe housing clean and insert new cartridge
Lubricate o-ring and screw housing into head
Turn water back on
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