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  • Your filters are guaranteed to be the right fit!
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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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  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • CB1 OmniFilter Undersink Filter Replacement Cartridge
  • CB3 OmniFilter Undersink Filter Replacement Cartridge
  • CB6 OmniFilter Whole House Filter Replacement Cartridge
  • GAC1SS OmniFilter Series C Undersink Filter Replacement Cartridge
  • CBF1-S-05 OmniFilter Undersink Filter System

    CBF1-S-05 OmniFilter Undersink Water Filtration System

    $73.99 Retail Price:  $88.54
  • CBF3-S-05 OmniFilter Undersink Filter System

    CBF3-S-05 OmniFilter Undersink Water Filtration System

    $105.99 Retail Price:  $108.34
  • RS14-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • RS2-SS OmniFilter Whole House Filter Replacement Cartridge

    RS2-SS OmniFilter Whole House Water Filter Cartridge

    $6.99 Retail Price:  $8.04
  • RS3-SS OmniFilter Whole House Filter Replacement Cartridge
  • RS7-SS OmniFilter Whole House Filter Replacement Cartridge
  • CBF2-S-05 OmniFilter Undersink Filter System
  • OB1-S-05 OmniFilter Undersink Filter System
  • RS19 OmniFilter Reusable Screen Filter Cartridge

    RS19 OmniFilter Reusable Screened Water Filter Cartridge

    $13.99 Retail Price:  $17.34
  • SFM2 OmniFilter Undersink Water Filter System

    USM2-S-S06 OmniFilter Undersink Water Filtration System

    $35.99 Retail Price:  $48.29
  • EP-5 Pentek Replacement Filter Cartridge
  • RS4-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    $4.99 Retail Price:  $8.04
  • BF7-S-06 OmniFilter Undersink Filter System

    BF7-S-06 OmniFilter Undersink Filter System

    $81.99 Retail Price:  $85.99

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