Under Sink Water Filter Replacement Cartridges
Don’t settle for a replacement under sink water filter cartridge that simply fits, find one designed and manufactured specifically for your under sink water filter system.
Discount Filter Store has one of the largest selections of undersink filter cartridges. With under sink filter cartridges available in over 15+ different filter medias, 8+ different sizes (5x2½ - 20x4½), and a wide variety of filter life’s ranging from 250 gallons to 50,000+ gallons, you’re guaranteed to find the under sink water filter system and/or replacement cartridges you need. Choose from hundreds of under sink water filter cartridges from some of the industry’s top brands including American Plumber, Crystal Quest, Pentek®, Culligan®, GE, Aqua-Pure®, Whirlpool®, and more.
Fits American Plumber W38-PR and most standard size water filter housings Learn More$21.99 MSRP: $24.34
Fits the Culligan 201 Under Sink Water Filter System Learn More
Fits Filtrete 3US-AS01, 3US-PS01, and Whirlpool WHCF-SUF, WHCF-SUFC water filter systems Learn More$27.99 MSRP: $28.99
Fits Crystal Quest countertop, undersink and refrigerator water filtration systems Learn More$23.99 MSRP: $28.74
Fits Crystal Quest countertop, undersink and refrigerator water filtration systems Learn More$28.99 MSRP: $35.99
Made for the Trojan UV Max IHS22-D4 Water Disinfection System Learn More$27.99 MSRP: $39.97
Fits the UC-151 icemaker Learn More
As Low As $28.00 Per Filter