When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

Call Toll-Free: 1-800-277-3458

My Cart:

0 item(s) - $0.00
You have no items in your shopping cart.

FREE DELIVERY on orders over $39*

Replacement Water Filters: Undersink

Undersink Water Filters by DiscountFilterStore.com

Items 1 to 25 of 31 total

Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction
  1. GAC-5 Pentek Replacement Filter Cartridge
  2. 47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter
  3. WHKF-GAC Whirlpool Undersink Replacement Filter Cartridge
  4. GAC-BB Pentek Replacement Filter Cartridge
  5. QC10-GACR Pentek Undersink Quick-Change Replacement Filter Cartridge
  6. QC10-TSGACR Pentek Undersink Quick-Change Replacement Filter Cartridge
  7. TSGAC-10 Pentek Undersink Filter Replacement Cartridge
  8. 32-250-125-050 KX Technologies Replacement Filter Cartridge
  9. CBR2-10 Pentek Undersink Filter Replacement Cartridge

    CBR2-10 Pentek Undersink Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $15.99
  10. CBR2-10R Pentek Undersink Filter Replacement Cartridge

    CBR2-10R Pentek Undersink Filter Replacement Cartridge

    Fits Pentek under-sink filter housings and any housing that uses standard 9 3/4-inch by 2 1/2-inch filter cartridges Learn More
    $17.99
  11. CC-10 Pentek Undersink Filter Replacement Cartridge
  12. AP327 Aqua-Pure Undersink Filter Replacement Cartridge

    AP327 Aqua-Pure Undersink Filter Replacement Cartridge

    Fits Aqua-Pure undersink water filter systems Learn More
    $29.99
  13. AP-C77 Aqua-Pure Undersink Filter Replacement Cartridge
  14. DW-200-R American Plumber Undersink Filter Replacement Cartridge
  15. WCC American Plumber Undersink Filter Replacement Cartridge

    WCC American Plumber Undersink Filter Replacement Cartridge

    Fits American Plumber W38-PR and most standard size water filter housings Learn More
    $20.99
  16. WGC478 American Plumber Undersink Compact Filter Replacement Cartridge
  17. WGCHD American Plumber Undersink Filter Replacement Cartridge

    WGCHD American Plumber Undersink Filter Replacement Cartridge

    Fits American Plumber W10-PR and W15-PR and most other heavy duty water filter housings Learn More
    $39.99
  18. AP217 Aqua-Pure Undersink Filter Replacement Cartridge

    AP217 Aqua-Pure Undersink Filter Replacement Cartridge

    Fits Aqua-Pure undersink water filter systems Learn More
    $31.99
  19. AP517 Aqua-Pure Undersink Filter Replacement Cartridge

    AP517 Aqua-Pure Undersink Filter Replacement Cartridge

    Fits Aqua-Pure undersink water filter systems Learn More
    $56.99
  20. FXSVC GE SmartWater Undersink Filter Set
  21. GAC1SS OmniFilter Series C Undersink Filter Replacement Cartridge
  22. GAC-10 Pentek Undersink Filter Replacement Cartridge
  23. D-20A Culligan Level 1 Undersink Filter Replacement Cartridge
  24. D-250A Culligan Undersink Filter Replacement Cartridge Set

    D-250A Culligan Undersink Filter Replacement Cartridge Set

    Fits the Culligan SY-2300, SY-2300S and SY-2650 systems and any brand of undersink water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $34.99
  25. D-28 Culligan Level 1 Undersink Filter Replacement Cartridge

    D-28 Culligan Level 1 Undersink Filter Replacement Cartridge

    Fits Culligan US-550, US-600, US-600A, and any brand of water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $17.69