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Undersink Water Filters & Systems

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.

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  1. CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    Fits most standard 10-inch x 2.5-inch housings Learn More
    $14.99 Retail Price:  $21.99
  2. W9330958 Doulton SuperCarb Undersink Ceramic Candle Filter System

    W9330958 Doulton SuperCarb Undersink Ceramic Candle Filter System

    Fits 10 inch by 2 inch short thread filter candles Learn More
    $175.09 Retail Price:  $203.65
  3. AP510 AquaPure Water Filtration System

    AP510 AquaPure Water Filtration System

    3/8-inch NPT pipe size, 5 Micron. Quick Connect fittings make installation easy! Learn More
    $141.99 Retail Price:  $146.04
  4. WI-BG12000 Body Glove Water Filter System

    WI-BG12000 Body Glove Water Filter System

    Attaches easily to most sinks and faucets Learn More
    $593.99 Retail Price:  $720.95
  5. GXULQ GE Undersink Filter System
  6. 3US-PS01 Filtrete Undersink Filter System
  7. 3US-AS01 Filtrete Undersink Filter System

    3US-AS01 Filtrete Undersink Filter System

    $41.99 Retail Price:  $50.59
  8. US-600 Culligan Slim Undersink Filter System
  9. AP200 Aqua-Pure Undersink Filter System

    AP200 Aqua-Pure Undersink Water Filtration System

    Regular Price: $104.99

    Special Price: $87.05

  10. CBF1-S-05 OmniFilter Undersink Filter System

    CBF1-S-05 OmniFilter Undersink Water Filtration System

    Engineered to fit standard 1/2-inch NPS supply threads Learn More
    $73.99 Retail Price:  $88.54
  11. US-1500 Pentek Undersink Filter System with Monitor
  12. SFM2 OmniFilter Undersink Water Filter System
  13. QC10-EP Pentek Undersink Quick-Change Filter System

    QC10-EP Pentek Quick-Change Filter System

    Regular Price: $29.99

    Special Price: $27.05

  14. QC10-TSGAC Pentek Undersink Quick-Change Filter System
  15. K-202 Kohler Undersink Replacement Filter Cartridge

    K-202 Kohler Undersink Water Filter Cartridge

    Fits the Kohler Aquifer Water Filtration System K-200 Learn More
    $112.99 Retail Price:  $131.09
  16. K-201 Kohler Undersink Replacement Filter Cartridge

    K-201 Kohler Undersink Water Filter Cartridge Replacement

    Fits the Kohler Aquifer Water Filtration System K-200 Learn More
    $94.99 Retail Price:  $109.24
  17. C2 Pentek Undersink Filter Replacement Cartridge

    C2 Pentek Undersink Filter Replacement Cartridge

    Fits in compact 5-inch water filter housings Learn More
    $5.99 Retail Price:  $8.84
  18. 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
  19. 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
  20. 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
    $16.99 Retail Price:  $21.84
  21. 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
    $19.39 Retail Price:  $24.60
  22. 47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter

    47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter

    Fits 3M Cuno Water Factory FaucetMATE FM DWS 1500 one-stage system Learn More
    $66.99 Retail Price:  $77.61
  23. Whirlpool WHAB-6009 Replacement Unit A Water Filter Cartridge
  24. WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    Fits the Whirlpool WHAF-0335AB Filtration System Learn More
    $45.99
  25. QC10-EPR Pentek Undersink Quick-Change Replacement Filter Cartridge

    QC10-EPR Pentek Quick-Change Replacement Water Filter Cartridge

    Fits any Pentek Quick-Change Series water filtration system heads Learn More
    $22.09 Retail Price:  $27.70

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