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Replacement Water Filters: Undersink

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.

Items 97 to 144 of 176 total

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  • 47-55707G2 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 Retail Price:  $77.99
  • Whirlpool WHAB-6010 Replacement Unit B Filter Cartridge

    WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    $48.99 Retail Price:  $62.09
  • WHKF-DB1 Whirlpool Undersink Replacement Filter Cartridge
  • Whirlpool WHKF-DB2 Undersink Replacement Water Filter Cartridge
  • Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge
  • K-201 Kohler Undersink Replacement Filter Cartridge

    K-201 Kohler Undersink Water Filter Cartridge Replacement

    $96.99 Retail Price:  $132.60
  • K-202 Kohler Undersink Replacement Filter Cartridge

    K-202 Kohler Undersink Water Filter Cartridge

    $122.99 Retail Price:  $173.40
  • MATRIKX-1-10 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
  • RS19 OmniFilter Reusable Screen Filter Cartridge

    RS19 OmniFilter Reusable Screened Water Filter Cartridge

    $13.99 Retail Price:  $17.34
  • OMB934-1L Omnipure Alpha Series Undersink Filter Replacement Cartridge
  • C1 Pentek Undersink Filter Replacement Cartridge

    C1 Pentek Undersink Filter Replacement Cartridge

    $12.99 Retail Price:  $15.34
  • C2 Pentek Undersink Filter Replacement Cartridge

    C2 Pentek Undersink Filter Replacement Cartridge

    $7.99 Retail Price:  $8.84
  • CBC-5 Pentek Undersink Filter Replacement Cartridge

    CBC-5 Pentek Undersink Filter Replacement Cartridge

    $9.99 Retail Price:  $16.55
  • CBR2-10 Pentek Undersink Filter Replacement Cartridge
  • CBR2-10R Pentek Undersink Filter Replacement Cartridge

    CBR2-10R Pentek Undersink Filter Replacement Cartridge

    $18.99 Retail Price:  $21.95
  • CC-10 Pentek Undersink Filter Replacement Cartridge

    CC-10 Pentek Undersink Filter Replacement Cartridge

    $14.99 Retail Price:  $15.34
  • CCBC-10 Pentek Undersink Filter Replacement Cartridge

    CCBC-10 Pentek Undersink Filter Replacement Cartridge

    $18.99 Retail Price:  $19.31
  • CRE-1 Pentek Undersink Filter Replacement Cartridge

    CRE-1 Pentek Undersink Filter Replacement Cartridge

    $23.99 Retail Price:  $30.69
  • ECP5-10 Pentek Undersink Filter Replacement Cartridge

    ECP5-10 Pentek Undersink Filter Replacement Cartridge

    $8.99 Retail Price:  $9.42
  • EP-5 Pentek Replacement Filter Cartridge
  • RS4-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • W9121202 Doulton AquaCera Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • EVERPURE-EV9730-06

    EVERPURE-EV9730-06

    $71.24 Retail Price:  $128.79
  • BGE-3200 BevGuard Water Filter Cartridge

    BGE-3200 BevGuard Water Filter Cartridge

    $75.99 Retail Price:  $96.00
  • BGE-3200S BevGuard Water Filter Cartridge

    BGE-3200S BevGuard Water Filter Cartridge

    $84.99 Retail Price:  $107.00
  • BGE-4200S BevGuard Water Filter Cartridge

    BGE-4200S BevGuard Water Filter Cartridge

    $71.99 Retail Price:  $89.99
  • BGE-4200 BevGuard Water Filter Replacement Cartridge

    BGE-4200 BevGuard Water Filter Replacement Cartridge

    $59.99 Retail Price:  $81.00
  • WHEEDF Whirlpool UltraEase Water Filter Pack

    WHEEDF Whirlpool UltraEase Water Filter Pack

    $47.99 Retail Price:  $59.79
  • E5520-K Omnipure Water Filter

    E5520-K Omnipure Water Filter

    $17.99 Retail Price:  $49.99
  • E5722-P Omnipure Carbon Block Water Filter

    E5722-P Omnipure Carbon Block Water Filter

    $33.99 Retail Price:  $49.99
  • US-UF3R Culligan Ultrafiltration Replacement Water Filter Cartridge Set
  • 3M AquaPure 3MFF101 Whole House Water Filter Cartridge

    3MFF101 3M Aqua-Pure Replacement Water Filter Cartridge

    $200.99 Retail Price:  $209.29
  • CQE-RC-04000 Crystal Quest Carbon Block Water Filter Cartridge

Items 97 to 144 of 176 total

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