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Undersink Water Filter 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. DUPONT-WFDW120009W

    DUPONT-WFDW120009W

    $39.99 Retail Price:  $52.91
  2. DOULTON-W9330958

    DOULTON-W9330958

    $175.09 Retail Price:  $203.65
  3. PENTEK-BFS-201

    PENTEK-BFS-201

    $53.99 Retail Price:  $56.80
  4. PENTEK-3G-SLIM-38-NPT10
  5. PENTEK-158643

    PENTEK-158643

    $24.99 Retail Price:  $25.98
  6. 158642 Pentek Slim Line Filter Housing - Blue

    158642 Pentek Slim Line Filter Housing - Blue

    Fits standard 3/8-inch water lines Learn More
    $19.99 Retail Price:  $25.29
  7. PENTEK-158117

    PENTEK-158117

    $18.99
  8. PENTEK-158110

    PENTEK-158110

    $18.99 Retail Price:  $22.41
  9. PENTEK-158008

    PENTEK-158008

    $12.79 Retail Price:  $16.55
  10. PENTEK-153128

    PENTEK-153128

    $19.99 Retail Price:  $23.56
  11. PENTEK-153029

    PENTEK-153029

    $32.99
  12. 153018 Pentek Slim Line Filter Housing Sump - Clear

    153018 Pentek Slim Line Filter Housing Sump - Clear

    Fits the cap of CSL-CI and CSL-C1 10-inch Slim Line Clear Housings Learn More
    $18.99 Retail Price:  $21.84
  13. PENTEK-153017

    PENTEK-153017

    $11.29 Retail Price:  $15.28
  14. OMNIFILTER-SFM2
  15. OB1-S-05 OmniFilter Undersink Filter System

    OB1-S-05 OmniFilter Undersink Filter System

    Fits standard 3/4-inch MPT lines Learn More
  16. DOULTON-W9320007

    DOULTON-W9320007

    $151.99 Retail Price:  $167.57
  17. WQCFU-T-KIT Watts Triple Drinking Water Filtration System w/Kwik-Change Filter Cartridges

    WQCFU-T-KIT Watts Triple Drinking Water Filtration System w/Kwik-Change Filter Cartridges

    Comes complete with water filter cartridges, bracket, faucet, feed water saddle valve and tubing Learn More
    $118.99 Retail Price:  $139.14
  18. US-UF3 Culligan Ultrafiltration Drinking Water System

    US-UF3 Culligan Ultrafiltration Drinking Water System

    Filter capacity of six months or 500 gallons of water usage Learn More
    $155.99 Retail Price:  $254.14
  19. APDWS1000 Undersink Water Filter System by Aqua-Pure

    APDWS1000 Undersink Water Filter System by Aqua-Pure

    Fits most standard water lines Learn More
    $394.99
  20. 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
  21. WI-BG6000FF Body Glove Water Filter System

    WI-BG6000FF Body Glove Water Filter System

    Attaches easily to full flow faucets, sinks, spas, baths and more Learn More
    $462.99 Retail Price:  $524.95
  22. BG-3000 Body Glove Water Filtration System

    BG-3000 Body Glove Water Filtration System

    Filters down to .50 micron Learn More
    $381.99 Retail Price:  $441.59
  23. BG-1000 Body Glove Water Filtration System

    BG-1000 Body Glove Water Filtration System

    Filters down to .50 micron Learn More
    $337.99 Retail Price:  $390.99
  24. 150550 Pentek 3G Whole House Filter System

    150550 Pentek 3G Whole House Filter System

    Fits most industry standard of 10 x 2.5 inch filter cartridges Learn More
    $25.99 Retail Price:  $35.64
  25. CRYSTAL-QUEST-CQE-US-00324

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