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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. PENTEK-BFS-201

    PENTEK-BFS-201

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

    PENTEK-158643

    $24.99 Retail Price:  $25.98
  4. 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
  5. PENTEK-158117

    PENTEK-158117

    $18.99
  6. PENTEK-158110

    PENTEK-158110

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

    PENTEK-158008

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

    PENTEK-153128

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

    PENTEK-153029

    $32.99
  10. 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
  11. PENTEK-153017

    PENTEK-153017

    $11.29 Retail Price:  $15.28
  12. 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
  13. US-1500 Pentek Undersink Filter System with Monitor
  14. PENTEK-US-1000

    PENTEK-US-1000

    $126.99 Retail Price:  $139.71
  15. PENTEK-SLIM-PR10-JG38 Pentek Undersink Filter 10 inch Housing
  16. PENTEK-SLIM-CLEAR-14-WPR5
  17. SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing
  18. SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  19. PENTEK-QC10-TSGAC

    PENTEK-QC10-TSGAC

    $25.69 Retail Price:  $31.84
  20. QC10-GAC Pentek Undersink Quick-Change Filter System

    QC10-GAC Pentek Quick-Change Water Filter System

    $22.99 Retail Price:  $30.69
  21. QC10-EP Pentek Undersink Quick-Change Filter System

    QC10-EP Pentek Quick-Change Filter System

    $29.99 Retail Price:  $34.26
  22. QC10-CBR-THREADED Pentek Undersink Quick-Change Filter System
  23. PENTEK-QC10-CBR-JG14

    PENTEK-QC10-CBR-JG14

    $33.99 Retail Price:  $35.41
  24. PENTEK-QC10-CB1

    PENTEK-QC10-CB1

    $28.79 Retail Price:  $35.41

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