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

My Cart:

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

Free Shipping over $39

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

Undersink Water Filters & Systems

Undersink Water Filters by DiscountFilterStore.com

Items 1 to 25 of 49 total

Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction
  1. 3G-SLIM-38-NPT10 Pentek Whole House Slim 10 inch Filter Housing
  2. 158642 Pentek Slim Line Filter Housing - Blue

    158642 Pentek Slim Line Filter Housing - Blue

    (Retail Price: $25.29 ) $19.99
  3. 158117 Pentek Slim Line Filter Housing - Clear
  4. 158110 Pentek Filter Housing - Clear

    158110 Pentek Filter Housing - Clear

    (Retail Price: $22.41 ) $18.99
  5. 158008 Pentek Slim Line Filter Housing - Clear

    158008 Pentek Slim Line Water Filter Housing - Clear

    Fits standard 3/8-inch water lines Learn More
    (Retail Price: $16.55 ) $12.39
  6. 153128 Pentek Filter Housing Sump - Clear
  7. 153018 Pentek Slim Line Filter Housing Sump - Clear
  8. 153017 Pentek Slim Line Filter Housing Sump - Blue

    153017 Pentek Slim Line Filter Housing Sump - Blue

    Fits the cap of SY-5197 10-inch Slim Line Housings, as well as other countertop and undersink systems Learn More
    (Retail Price: $15.28 ) $11.29
  9. OB1-S-05 OmniFilter Undersink Filter System

    OB1-S-05 OmniFilter Undersink Filter System

    Fits standard 3/4-inch MPT lines Learn More
  10. W385-PR American Plumber Undersink Compact Filter System
  11. PENTEK-SLIM-PR10-JG38 Pentek Undersink Filter 10 inch Housing
  12. SLIM-CLEAR-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  13. SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing
  14. SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  15. Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge

    WHKF-GAC Whirlpool Undersink Replacement Filter Cartridge

    Fits the Whirlpool WHKF-DUF Under Sink Filter Housing Learn More
    $17.99
  16. WHKF-DB1 Whirlpool Undersink Replacement Filter Cartridge

    WHKF-DB1 Whirlpool Undersink Replacement Filter Cartridge

    Fits the Whirlpool WHKF-DUF Under Sink Filter Housing Learn More
    $14.99
  17. MATRIKX-1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge

    MATRIKX-1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    (Retail Price: $14.94 ) $10.99
  18. OMB934-1L Omnipure Alpha Series Undersink Filter Replacement Cartridge

    OMB934-1L Omnipure Alpha Series Undersink Filter Replacement Cartridge

    Fits any brand of undersink or whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    (Retail Price: $21.38 ) $14.99
  19. RS19 OmniFilter Reusable Screen Filter Cartridge

    RS19 OmniFilter Reusable Screened Water Filter Cartridge

    150 micron filter that fits into most industry standard size 10-inch water filtration system housings Learn More
    $14.99
  20. MATRIKX-Pb1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  21. QC10-TSGACR Pentek Undersink Quick-Change Replacement Filter Cartridge

    QC10-TSGACR Pentek Quick-Change Replacement Water Filter Cartridge

    Fits any Pentek Quick-Change Series water filtration system head Learn More
    (Retail Price: $21.84 ) $16.99
  22. QC10-GACR Pentek Undersink Quick-Change Replacement Filter Cartridge

    QC10-GACR Pentek Quick-Change Replacement Water Filter

    Fits any Pentek Quick-Change Series of water filtration system heads Learn More
    (Retail Price: $20.57 ) $15.89
  23. TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    TSGAC-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
    (Retail Price: $24.60 ) $19.39
  24. TO6 OmniFilter Whole House Filter Replacement Cartridge

    TO6-SS2-S06 OmniFilter Whole House Water Filter Replacement Cartridge

    Fits into any brand of whole house water filtration system that accepts filter cartridges sized 9 3/4 x 4 1/2 inches Learn More
    (Retail Price: $24.14 ) $19.99
  25. CBC-5 Pentek Undersink Filter Replacement Cartridge

Items 1 to 25 of 49 total

Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction
Scroll To Top