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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. 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
  2. CQE-US-00324 Crystal Quest Undersink Triple Nitrate PLUS Filtration System

    CQE-US-00324 Crystal Quest Undersink Triple Nitrate PLUS Filtration System

    Attaches to and fits beneath most standard sinks Learn More
    $134.99 Retail Price:  $136.84
  3. CQE-US-00320 Crystal Quest Undersink Triple Arsenic PLUS Filtration System

    CQE-US-00320 Crystal Quest Undersink Triple Arsenic PLUS Filtration System

    Attaches to and fits beneath most standard sinks Learn More
    $132.99 Retail Price:  $155.24
  4. CQE-US-00316 Crystal Quest Undersink Double Fluoride Filtration System

    CQE-US-00316 Crystal Quest Undersink Double Fluoride Filtration System

    Attaches to and fits beneath most standard sinks Learn More
    $133.99 Retail Price:  $156.39
  5. CQE-US-00313 Crystal Quest Undersink Double Ceramic PLUS Water Filtration System

    CQE-US-00313 Crystal Quest Undersink Double Ceramic PLUS Water Filtration System

    Attaches to and fits beneath most standard sinks Learn More
    $110.99 Retail Price:  $113.34
  6. 3M AquaPure 3MFF100 Drinking Water Filter System

    3MFF100 3M Aqua-Pure Full Flow Drinking Water Filtration System

    Fits beneath your sink and connects to standard faucets Learn More
    $234.99 Retail Price:  $272.54
  7. WHER25 Whirlpool Reverse Osmosis Undersink Water Filtration System

    WHER25 Whirlpool Reverse Osmosis Undersink Water Filtration System

    Fits and installs easily beneath standard sized sinks Learn More
    $199.99 Retail Price:  $232.29
  8. WHED20 Whirlpool Undersink Water Filtration System

    WHED20 Whirlpool Undersink Water Filtration System

    Fits and installs easily beneath standard sized sinks Learn More
    $105.99 Retail Price:  $124.19
  9. OB1-S-05 OmniFilter Undersink Filter System

    OB1-S-05 OmniFilter Undersink Filter System

    Fits standard 3/4-inch MPT lines Learn More
  10. 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
  11. 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
  12. 4US-MAXL-S01 Filtrete Single Stage Drinking Water System
  13. 3US-PS01 Filtrete Undersink Filter System
  14. 3US-AS01 Filtrete Undersink Filter System

    3US-AS01 Filtrete Undersink Filter System

    $41.99 Retail Price:  $50.59
  15. W9380002 Doulton Undersink Filter System

    W9380002 Doulton HIP3 Undersink Water Filtration System

    Fits 10 inch by 2 inch short thread filter candles Learn More
    $198.07 Retail Price:  $230.08
  16. W9380001 Doulton Undersink Filter System

    W9380001 Doulton Undersink Water Filtration System

    Fits Doulton short mount water filter candles Learn More
    $132.16 Retail Price:  $154.28
  17. W9330962 Doulton Sterasyl Undersink Ceramic Candle Filter System
  18. W9330957 Doulton UltraCarb Undersink Ceramic Candle Filter System
  19. W9330042 Doulton Undersink Filter System

    W9330042 Doulton HIP Undersink Water Filtration System

    Fits 10 inch by 2 inch short thread filter candles Learn More
    $76.99 Retail Price:  $98.80
  20. W9320004 Doulton Undersink Filter System

    W9320004 Doulton HIS Undersink Water Filtration System

    Fits 10 inch by 2 inch short thread filter candles Learn More
    $176.16 Retail Price:  $204.88
  21. US-EZ-4 Culligan Level 4 Easy-Change Undersink Filter System
  22. US-EZ-3 Culligan Level 3 Easy-Change Undersink Filter System
  23. US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  24. US-600 Culligan Slim Undersink Filter System
  25. SY-1000 Culligan Water Filtration System

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