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 49 to 96 of 121 total

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  • RS7-SS OmniFilter Whole House Filter Replacement Cartridge
  • 3MROP416-20A Water Factory Systems Replacement Filter Cartridge
  • 47-55708G2 Water Factory Systems Replacement Filter Cartridge
  • 47-55712G2 Water Factory Systems Replacement Filter Cartridge
  • 47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter
  • Whirlpool WHAB-6009 Replacement Unit A Water Filter Cartridge

    WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    $36.99
    MSRP: $77.99
    Save 53%
  • Whirlpool WHAB-6010 Replacement Unit B Filter Cartridge

    WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    $48.99
    MSRP: $62.09
    Save 21%
  • WHKF-DB1 Whirlpool Undersink Replacement Filter Cartridge
  • Whirlpool WHKF-DB2 Undersink Replacement Water Filter Cartridge
  • Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge

    WHKF-GAC Whirlpool Undersink Replacement Filter Cartridge

    $10.99
    MSRP: $20.34
    Save 46%
  • FXSLC GE SmartSetWater Undersink Filter
  • F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)
  • K-201 Kohler Undersink Replacement Filter Cartridge

    K-201 Kohler Undersink Water Filter Cartridge Replacement

    $96.99
    MSRP: $132.60
    Save 27%
  • MATRIKX-1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-5-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-CTO2-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-Pb1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-Pb1-HD10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • 32-250-125-050 KX Technologies Replacement Filter Cartridge

    32-250-125-050 KX Technologies Replacement Filter Cartridge

    $11.29
    MSRP: $16.99
    Save 34%
  • RS19 OmniFilter Reusable Screen Filter Cartridge

    RS19 OmniFilter Reusable Screened Water Filter Cartridge

    $14.49
    MSRP: $20.99
    Save 31%
  • OMB934-1L Omnipure Alpha Series Undersink Filter Replacement Cartridge
  • RS4-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • Everpure H-54 Water Filter Replacement Cartridge (EV9730-06)
  • BGE-3200 BevGuard Water Filter Cartridge

    BGE-3200 BevGuard Water Filter Cartridge

    $80.39
    MSRP: $102.99
    Save 22%
  • BGE-3200S BevGuard Water Filter Cartridge

    BGE-3200S BevGuard Water Filter Cartridge

    $89.69
    MSRP: $113.99
    Save 21%
  • BGE-4200S BevGuard Water Filter Cartridge

    BGE-4200S BevGuard Water Filter Cartridge

    $75.99
    MSRP: $94.99
    Save 20%
  • BGE-4200 BevGuard Water Filter Replacement Cartridge

    BGE-4200 BevGuard Water Filter Replacement Cartridge

    $63.29
    MSRP: $86.99
    Save 27%
  • WHEEDF Whirlpool UltraEase Water Filter Pack

    WHEEDF Whirlpool UltraEase Water Filter Pack

    $47.99
    MSRP: $59.79
    Save 20%
  • US-UF3R Culligan Ultrafiltration Replacement Water Filter Cartridge Set
  • CQE-RC-04000 Crystal Quest Carbon Block Water Filter Cartridge
  • CQE-RC-04003 Crystal Quest Multi Stage ULTRA Water Filter Cartridge
  • CQE-RC-04006 Crystal Quest Fluoride Water Filter

    CQE-RC-04006 Crystal Quest Fluoride Water Filter

    $47.99
    MSRP: $63.24
    Save 24%
  • CQE-RC-04014 Crystal Quest Carbon Block Water Filter Cartridge
  • CQE-RC-04015 Crystal Quest Reusable Pleated Water Filter

    CQE-RC-04015 Crystal Quest Reusable Pleated Water Filter

    $28.99
    MSRP: $35.99
    Save 19%
  • CQE-RC-04034 Crystal Quest Reusable Pleated Water Filter Cartridge
  • CQE-RC-04035 Crystal Quest Carbon Block Water Filter Cartridge
  • CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge
  • E5620 Omnipure E-Series Everpure Compatible Filter

    E5620 Omnipure E-Series Everpure Compatible Filter

    $20.09
    MSRP: $41.99
    Save 52%
  • P10-5 Tier1 Polypropylene Sediment Filter

    P10-5 Tier1 Polypropylene Sediment Filter

    $3.99
    MSRP: $5.74
    Save 30%
  • P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  • P1-5 Tier1 Sediment Filter Cartridge

    P1-5 Tier1 Sediment Filter Cartridge

    $4.99
    MSRP: $8.34
    Save 40%
  • RC-0.5 Rainshow’r Replacement Water Filter

    RC-0.5 Rainshow’r Replacement Water Filter

    $92.99
    MSRP: $115.00
    Save 19%
  • TIER1-GAC-10 Pentek Undersink Replacement Cartridge by Tier1
  • WFDWC70001 DuPont Universal Drinking Water Carbon Block Cartridge
  • WFDWC20001 DuPont Universal Drinking Water Carbon Block Cartridge
  • WFDWC40001 DuPont Universal Drinking Water Carbon Block Cartridge
  • CMB-510-HF Advanced Water Products 10-inch x 4.5-inch Replacement Sediment Filter
  • CMB-520-HF Advanced Water Products 20-inch x 4.5-inch Replacement Sediment Filter

Items 49 to 96 of 121 total

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