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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. US-EZ-4 Culligan Level 4 Easy-Change Undersink Filter System
  2. US-EZ-3 Culligan Level 3 Easy-Change Undersink Filter System
  3. US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  4. US-600 Culligan Slim Undersink Filter System
  5. SY-1000 Culligan Water Filtration System
  6. AP200 Aqua-Pure Undersink Filter System

    AP200 Aqua-Pure Undersink Water Filtration System

    Regular Price: $104.99

    Special Price: $87.05

  7. 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
  8. CBF3-S-05 OmniFilter Undersink Filter System
  9. PENTEK-SLIM-PR10-JG38 Pentek Undersink Filter 10 inch Housing
  10. US-1000 Pentek Undersink Filter System

    US-1000 Pentek Undersink Filter System

    $126.99 Retail Price:  $139.71
  11. US-1500 Pentek Undersink Filter System with Monitor
  12. FM-350-DWS Water Factory Systems FaucetMATE Faucet Filter System
  13. F-201 InSinkErator Instant Hot Water Dispenser Filtration System

    F-201 InSinkErator Instant Hot Water Dispenser Filtration System

    Fits InSinkErator Series 1100 and 2200 Instant Hot Water Dispensers Learn More
  14. CBF2-S-05 OmniFilter Undersink Filter System

    CBF2-S-05 OmniFilter Undersink Water Filtration System

    Built to fit onto any standard 1/2-inch NPS supply thread Learn More
  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. SFM2 OmniFilter Undersink Water Filter System
  17. 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
    $11.29 Retail Price:  $15.28
  18. SLIM-CLEAR-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  19. SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing
  20. QC10-CBR-JG14 Pentek Undersink Quick-Change Filter System
  21. QC10-CB1 Pentek Undersink Quick-Change Filter System
  22. QC10-CBR-THREADED Pentek Undersink Quick-Change Filter System
  23. QC10-EP Pentek Undersink Quick-Change Filter System

    QC10-EP Pentek Quick-Change Filter System

    Regular Price: $29.99

    Special Price: $27.05

  24. QC10-GAC Pentek Undersink Quick-Change Filter System

    QC10-GAC Pentek Quick-Change Water Filter System

    $22.99 Retail Price:  $30.69
  25. QC10-TSGAC Pentek Undersink Quick-Change Filter System

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