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Undersink Water Filters & Systems

Transform the water served from your tap or faucet into a premium quality beverage with an under sink water filter.

With over 250+ under sink water filter systems and undersink replacement filters available in a wide range of flow rates, colors/finishes, prices, and filter life’s, we’ve got an undersink filter for every home. Choose from some of the best under sink water filters including the Crystal Quest 7 Stage Under Sink Fluoride Water Filter System, the Culligan® Level-4 Easy Change Undersink Drinking Water System, and the 3M Filtrete™ Undersink Advanced Water Filter System.

Not sure, which under the sink water filter is right for your home? Give us a call 1-800-277-3458; our experts will help you choose the perfect under sink filter to address all of your water quality concerns, no matter how monumentous they may seem.

Note: All of our under sink filters and under sink water filter systems are backed by our 100% Price Match Guarantee. Meaning if you find a particular under sink water filter for less than our listed price, we’ll match the competitors lower price. Shopping for home water filters has never been easier.

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  1. 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
  2. MATRIKX-Pb1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge

    MATRIKX-Pb1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $19.99 Retail Price:  $22.34
  3. 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
    $122.99 Retail Price:  $131.09
  4. F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    Fits the InSinkErator F-201 Water Filtration System, and all Series 1100 and 2200 Instant Hot Water Dispensers Learn More
    $66.99 Retail Price:  $73.36
  5. 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
  6. US-1500 Pentek Undersink Filter System with Monitor
  7. US-1000 Pentek Undersink Filter System

    US-1000 Pentek Undersink Filter System

    $126.99 Retail Price:  $139.71
  8. 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
    $19.99 Retail Price:  $21.84
  9. 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
    $48.99
  10. Whirlpool WHAB-6009 Replacement Unit A Water Filter Cartridge

    WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    Fits the Whirlpool WHAF-0335AB Filtration System Learn More
    $36.99 Retail Price:  $43.34
  11. QC10-TSGAC Pentek Undersink Quick-Change Filter System
  12. WI-BG12000 Body Glove Water Filter System

    WI-BG12000 Body Glove Water Filter System

    Attaches easily to most sinks and faucets Learn More
    $610.46 Retail Price:  $720.95
  13. 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
  14. CQE-RC-04020 Crystal Quest Nitrate Water Filter Cartridge
  15. EV9601-77 Everpure VOC #2 Replacement Filter Cartridge

    EV9601-77 Everpure VOC #2 Replacement Filter Cartridge

    Fits the Everpure QC4-VOC, ROM II, and ROM III systems Learn More
    $125.99 Retail Price:  $147.19
  16. BG-3000 Body Glove Water Filtration System

    BG-3000 Body Glove Water Filtration System

    Filters down to .50 micron Learn More
    $392.96 Retail Price:  $441.59
  17. BG-1000C Body Glove Replacement Water Filter Cartridge

    BG-1000C Body Glove Replacement Water Filter Cartridge

    Fits into the Body Glove BG-1000 water filtration system Learn More
    $113.96 Retail Price:  $133.39
  18. BG-1000 Body Glove Water Filtration System

    BG-1000 Body Glove Water Filtration System

    Filters down to .50 micron Learn More
    $328.46 Retail Price:  $390.99
  19. CBR2-10R Pentek Undersink Filter Replacement Cartridge

    CBR2-10R Pentek Undersink Filter Replacement Cartridge

    Fits Pentek under-sink filter housings and any housing that uses standard 9 3/4-inch by 2 1/2-inch filter cartridges Learn More
    $18.99 Retail Price:  $21.95
  20. 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
  21. QC10-GACR Pentek Undersink Quick-Change Replacement Filter Cartridge

    QC10-GACR Pentek Quick-Change Replacement Water Filter

    Fits any Pentek Quick-Change Series of water filtration system heads Learn More
    $18.99 Retail Price:  $20.57
  22. US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  23. 750R-D Culligan Level 1 Undersink RV and Marine Icemaker and Drinking Water Filter

    750R-D Culligan Level 1 Undersink RV and Marine Icemaker and Drinking Water Filter

    Fits Culligan SY-750s, RV-750, IC-750, SY-1000, SY-1000s, RV-1000, and IC-1000 filter systems Learn More
    $17.99
  24. 1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter

    1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter

    Fits Culligan SY1000, SY-1000s, IC-1000, RV-1000, SY-750s, IC-750, and RV-750 filter systems Learn More
    $28.99 Retail Price:  $36.79
  25. CB3 OmniFilter Undersink Filter Replacement Cartridge

    CB3-SS6-06 OmniFilter Undersink Filter Replacement Cartridge

    Fits any brand of undersink water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $50.99

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