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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Items 1 to 48 of 62 total

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  • WFQTC70001 DuPont Quicktwist Undersink Carbon Block Filter
  • EV9601-77 Everpure VOC #2 Replacement Filter Cartridge

    EV9601-77 Everpure VOC #2 Replacement Filter Cartridge

    $133.09
    MSRP: $171.99
    Save 23%
  • E5722-P Omnipure Carbon Block Water Filter

    E5722-P Omnipure Carbon Block Water Filter

    $33.99
    MSRP: $49.99
    Save 32%
  • E5520-K Omnipure Water Filter

    E5520-K Omnipure Water Filter

    $19.79
    MSRP: $25.99
    Save 24%
  • WHEEDF Whirlpool UltraEase Water Filter Pack

    WHEEDF Whirlpool UltraEase Water Filter Pack

    $45.99
    MSRP: $59.79
    Save 23%
  • BGE-4200 BevGuard Water Filter Replacement Cartridge

    BGE-4200 BevGuard Water Filter Replacement Cartridge

    $63.29
    MSRP: $86.99
    Save 27%
  • BGE-4200S BevGuard Water Filter Cartridge

    BGE-4200S BevGuard Water Filter Cartridge

    $75.99
    MSRP: $94.99
    Save 20%
  • BGE-3200S BevGuard Water Filter Cartridge

    BGE-3200S BevGuard Water Filter Cartridge

    $89.69
    MSRP: $113.99
    Save 21%
  • BGE-3200 BevGuard Water Filter Cartridge

    BGE-3200 BevGuard Water Filter Cartridge

    $80.39
    MSRP: $102.99
    Save 22%
  • W9121302 Doulton Imperial Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9123085 Doulton Imperial UltraCarb Countertop Ceramic Candle Replacement Filter Cartridge
  • CBC-5 Pentek Undersink Filter Replacement Cartridge

    CBC-5 Pentek Undersink Filter Replacement Cartridge

    $10.29
    MSRP: $15.99
    Save 36%
  • C2 Pentek Undersink Filter Replacement Cartridge

    C2 Pentek Undersink Filter Replacement Cartridge

    $8.29
    MSRP: $12.99
    Save 36%
  • F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)
  • 20035 Hydrologic 4-Stage Reverse Osmosis Cartridge

    22035 Hydrologic 4-Stage Reverse Osmosis Cartridge

    $136.19
    MSRP: $178.99
    Save 24%
  • E5620 Omnipure E-Series Everpure Compatible Filter

    E5620 Omnipure E-Series Everpure Compatible Filter

    $20.09
    MSRP: $41.99
    Save 52%
  • P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  • US-DC2-R Culligan Direct Connect Advanced Replacement Filter
  • 10 x 2.5 Inch 10 Stage Countertop or Undersink Filter Cartridge Replacement by Tier1
  • US-ST04 Tier1 Undersink Smart Tap Replacement Filter Cartridge
  • US-UF-100-RM 4-Stage Ultra-Filtration Hollow Fiber Drinking Water System Replacement Membrane by Tier1
  • W9222903 Doulton Ceramic Supercarb M15 Replacement Undersink Cartridge
  • FQK2J GE Undersink Water Filter Set
  • FQSVF GE SmartWater Undersink Water Filter Replacement Cartridge Set By Tier1
  • KX Matrikx CTO2-12 Reverse Osmosis Carbon Block Replacement Filter
  • WFDWC70001 DuPont Universal Drinking Water Carbon Block Cartridge
  • Pentek SCBC-10 Silvered Carbon Block

    Pentek SCBC-10 Silvered Carbon Block

    $22.99
    MSRP: $24.71
    Save 7%
  • Whirlpool WHAB-6010 Replacement Unit B Filter Cartridge

    WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    $47.99
    MSRP: $62.09
    Save 23%
  • WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    $35.99
    MSRP: $77.99
    Save 54%
  • W9121750 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9121715 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9121200 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9121020 Doulton Undersink Ceramic Candle Water Filter Cartridge
  • W9120562 Doulton Sterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9120145 Doulton Replacement Candle Set (6-Pack)

    W9120145 Doulton Replacement Candle Set (6-Pack)

    $106.00
    MSRP: $118.30
    Save 10%
  • 750R-D Culligan Level 1 Undersink RV and Marine Icemaker and Drinking Water Filter
  • 1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter
  • A101 Aries Undersink Comparable Filter Replacement Cartridge by Tier1
  • WGC478 American Plumber Undersink Compact Filter Replacement Cartridge
  • W5CIP478 American Plumber Undersink Compact Filter Replacement Cartridge (2-Pack)
  • DW-200-R American Plumber Undersink Filter Replacement Cartridge
  • DW-2000-RB American Plumber Replacement Filter Cartridge

    DW-2000-RB American Plumber Replacement Filter Cartridge

    $57.99
    MSRP: $61.28
    Save 5%
  • W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge
  • W9222900 Doulton Ceramic Water Filter
  • EV9300-15 Everpure proseries 1500 Replacement Filter Cartridge

Items 1 to 48 of 62 total

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