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Replacement Water Filters: Undersink

Keep your kitchen space neat and tidy, while reducing contaminants in your tap water with an under sink water filter system.

The beauty of under sink water filter systems is that they neatly fit underneath your sinks and don’t rob you of valuable counter space as countertop water filters do. Unlike other filter models, with under sink water filters there are no valves or tubing cluttering your counter. Because they remain out of sight, you can install larger under sink water filter models designed to filter out additional water contaminants such as fluorides, arsenic, and nitrates.

Below you’ll find over 60+ OEM under sink water filter systems, housings and filters from some of the top brands, including Pentek®, Culligan®, Whirlpool®, Doulton®, OmniFilter®, and more.

Need help choosing the right under sink water filter system? Our experts can help you choose the perfect under sink water filter to address all of your water quality concerns, just give us a call at 1-800-277-3458.

Items 1 to 25 of 28 total

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  1. Pentek QC10-CB1R Carbon Block Quick Change Filter

    Pentek QC10-CB1R Carbon Block Quick Change Filter

    Proprietary design fits Pentek QC systems exclusively Learn More
    $22.99 Retail Price:  $31.04
  2. INSINKERATOR-F-601R

    INSINKERATOR-F-601R

    $126.99 Retail Price:  $134.42
  3. PENTEK-CBC-5

    PENTEK-CBC-5

    $11.99 Retail Price:  $16.55
  4. INSINKERATOR-F-201R

    INSINKERATOR-F-201R

    $63.99 Retail Price:  $73.36
  5. Whirlpool WHKF-DB2 Undersink Replacement Water Filter Cartridge

    WHKF-DB2 Whirlpool Undersink Replacement Filter Cartridge

    Fits the Whirlpool WHKF-DUF Under Sink Filter Housing Learn More
    $15.99
  6. 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
  7. RC-0.5 Rainshow’r Replacement Water Filter

    RC-0.5 Rainshow’r Replacement Water Filter

    Fits into the C-200 Condor or BT-300 Breakthrough water filtration systems by Rainshow'r Learn More
    $92.99 Retail Price:  $109.24
  8. WI-BG6000FFC Body Glove Water Filter Cartridge

    WI-BG6000FFC Body Glove Water Filter Cartridge

    For use in the WI-BG6000FF Body Glove Water Filtration System Learn More
    $282.99 Retail Price:  $349.95
  9. DUPONT-WFDWC70001

    DUPONT-WFDWC70001

    $33.99 Retail Price:  $45.85
  10. PENTEK-QC10-CBRR

    PENTEK-QC10-CBRR

    $23.99 Retail Price:  $36.79
  11. AQUAPURE-C-CYST-FF

    AQUAPURE-C-CYST-FF

    $48.99 Retail Price:  $56.34
  12. AQUAPURE-C-COMPLETE

    AQUAPURE-C-COMPLETE

    $65.99 Retail Price:  $88.54
  13. WI-BG3000C Body Glove Replacement Filter Cartridge

    WI-BG3000C Body Glove Replacement Filter Cartridge

    Fits the Body Glove BG-3000 Water Filter System Learn More
    $155.99 Retail Price:  $173.86
  14. WI-BG3000R Body Glove Replacement Filter Cartridge

    WI-BG3000R Body Glove Replacement Filter Cartridge

    Fits existing Everpure C-300 Filtration Systems Learn More
    $141.99 Retail Price:  $159.10
  15. 1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter

    1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter

    Fits Culligan SY1000, SY-1000s, IC-1000, RV-1000, SY-750s, IC-750, and RV-750 filter systems Learn More
    $28.99 Retail Price:  $36.79
  16. CB3

    CB3

    $36.99 Retail Price:  $44.84
  17. AQUAPURE-AP-DW85

    AQUAPURE-AP-DW85

    $46.99 Retail Price:  $55.19
  18. 600R American Plumber Undersink Filter Replacement Cartridge

    600R American Plumber Undersink Water Filter Cartridge

    Built to fit into American Plumber WIC-600 and DW-600 undersink water filtration systems Learn More
    $31.99 Retail Price:  $35.06
  19. AP22 Aqua-Pure Undersink Filter Replacement Cartridge

    AP22 Aqua-Pure Replacement Undersink Water Filter Cartridge

    Fits Aqua-Pure undersink water filtration systems Learn More
    $56.99 Retail Price:  $75.89
  20. GXULQR

    GXULQR

    $39.99 Retail Price:  $43.69
  21. FXUVC GE SmartWater Undersink Filter Replacement Cartridge

    FXUVC GE SmartWater Undersink Filter Replacement Cartridge

    Fits any brand of undersink water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $54.99 Retail Price:  $59.79
  22. FXUTC GE SmartWater Undersink Filter Replacement Cartridge

    FXUTC GE SmartWater Undersink Filter Replacement Cartridge

    Fits any brand of undersink water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $19.99 Retail Price:  $22.99
  23. FXULC GE SmartWater Undersink Filter Replacement Cartridge

    FXULC GE SmartWater Undersink Filter Replacement Cartridge

    Fits any brand of undersink water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $34.99 Retail Price:  $51.74
  24. FQSVF
  25. FQSLF

    FQSLF

    $37.99 Retail Price:  $47.60

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