Discount Water Filters and Air Filters at Discount Filter Store.com

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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.

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AP101T 3M Aqua-Pure Whole House Water Filtration System
HD-950 Culligan Whole House Water Filter System
HF-150 Culligan Whole House Filter System
HF-360 Culligan Valve-In-Head Whole House Filter System
CFS01S Cuno Whole House Water Filter Housing
CFS02S Cuno Whole House Water Filter Housing
3WH-HD-S01 3M Filtrete Whole House Sump Filter System
3WH-STD-S01 3M Filtrete Whole House Sump Filter System
4WH-QCTO-S01 3M Filtrete Whole House Water Filtration System
4WH-QS-S01 3M Filtrete Whole House Water Filtration System
HFPP-1-WPR10 Pentek Big Blue Whole House Water Filter Housing (10 x 4.5)
HFPP-112-PR10 Pentek Big Blue Whole House 10 inch Filter Housing
HFPP-34-PR-10 Pentek Big Blue Whole House 10 inch Filter Housing
HFPP-1-PR10 Pentek Big Blue Whole House 10 inch Filter Housing
STANDARD-34-PR-10 Pentek Whole House Water Filtration System Housing (10 Inch)
The UV-110-1 Pentek UV System has been discontinued by the manufacturer
The UV-120-1 Pentek UV System has been discontinued by the manufacturer
UVBB-120-1 Pentek UV System
UVS-110-1 Pentek UV System
650388 Trojan UV Max UV Water Purification System
650651 Trojan UV Max UV Water Purification System
650652 Trojan UV Max UV System
650653 Trojan UV Max UV System
650683 Trojan UV Max UV Water Purification System
650686 Trojan UV Max UV Water Purification System
650690 Trojan UV Max UV Water Purification System
650692 Trojan UV Max UV Water Purification System
650695 Trojan UV Max UV Water Purification System
WHKF-DWHBB Whirlpool Filter Housing with Pressure Relief Valve - Clear
3G-STANDARD-34-PR20 Pentek Whole House Water Filtration System Housing (20 inch)
3G-STANDARD-CLEAR-34-PR10 Pentek Whole House Water Filtration System Housing (10 inch)
BBFS-22 Pentek Two Housing Filter System
BBFS-222 Pentek Three Housing Filter System
BFS-201 Pentek Slim Line Filter Housing with Pressure Relief Valve
BIG-CLEAR-LX-10 Pentek Big Clear Whole House 10 inch Filter Housing
W20FFPH1CBPR Watts Flowmatic Big Clear Whole House Water Filter Housing
W10FFPH1CBPR Watts Full Flow Whole House Water Filter Housing
S5Q-PA UV Sterilight Water Sterilizer System
S8Q-PA Sterilight UV Water Sterilizer System - 10 GPM
SC-740 Sterilight UV Disinfection System – 40 GPM
UVBB-3 PURA UV Disinfection System
IHS12-D4 Trojan UV Disinfection System
S12Q-PA Sterilight UV Water Sterilizer System
650694 Trojan UVMAX D4 UV Disinfection System
650682 Trojan UVMAX E4 UV Disinfection System
650647 Trojan UVMAX Pro 10 UV Disinfection System
650659 Trojan UVMAX Pro 30 UV Disinfection System
SPV-950 Sterilight UV Water Sanitizer System
650687 Trojan UVMAX F4 Plus UV Disinfection System
SPV-740 Sterilight UV Water Sterilizer System
AP802 3M Aqua-Pure Whole House Water Filtration System
AP11T 3M Aqua-Pure Whole House Water Filtration System
SST1HA 3M Aqua-Pure Stainless Steel Water Filtration System Housing
660039-R D4-V Viqua UltraViolet Disinfection System
Viqua VP950 UltraViolet Water Disinfection System (46 gpm)
650695-R D4+ Viqua Home Plus UltraViolet Water Disinfection System
650682 E4 Viqua Professional UltraViolet Water Disinfection System
650683 E4+ Viqua Professional Plus UltraViolet Water Disinfection System
650659 PRO30 Viqua Professional Plus UltraViolet Water Disinfection System
S5Q-PV Viqua Specialty UltraViolet Water Disinfection System
S8Q-PA Viqua Home UltraViolet Water Disinfection System
660003-R PRO50 Viqua Professional Plus UltraViolet Water Disinfection System
660040-R E4-V Viqua Professional Plus UltraViolet Water Disinfection System
IHS12-D4 Viqua Home Plus UltraViolet Water Disinfection System
IHS22-D4 Viqua Home Plus UltraViolet Water Disinfection System
Viqua VT4-DWS11 Ultraviolet Filtration System
650730-004 Viqua LightWise Upgrade Kit for Pro 10 Systems
650730-005 Viqua LightWise Upgrade Kit for Pro 20 Systems
VT1 Viqua Point-Of-Use UltraViolet Disinfection System
VT1-DWS Viqua UltraViolet Drinking Water Disinfection System

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  1. AP124 3M Aqua-Pure Comparable Whole House Filter Replacement Cartridge by Tier1

    AP124 3M Aqua-Pure Comparable Whole House Filter Replacement Cartridge by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More

    As Low As $0.00 Per Filter

  2. WHKF-WHSW Whirlpool Comparable Whole House Replacement Sediment Filter Cartridge by Tier1 (2-Pack)

    WHKF-WHSW Whirlpool Comparable Whole House Replacement Sediment Filter Cartridge by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More

    As Low As $0.00 Per Filter

  3. RS2DS OmniFilter Comparable Whole House Replacement Water Filter Cartridge by Tier1 (2-Pack)

    RS2DS OmniFilter Comparable Whole House Replacement Water Filter Cartridge by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More

    As Low As $0.00 Per Filter

  4. W5W American Plumber Comparable Whole House Sediment Filter Cartridge by Tier1 (2-Pack)

    W5W American Plumber Comparable Whole House Sediment Filter Cartridge by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More

    As Low As $0.00 Per Filter

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