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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. 3M Aqua-Pure APDWS1000 Undersink Water Filter System

    APDWS1000 Undersink Water Filter System by 3M Aqua-Pure

    Fits most standard water lines Learn More
    $394.99 Retail Price:  $397.34
  2. 31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    Built with a two-stage filtration and protected by a one year limited warranty Learn More
    $153.99 Retail Price:  $183.95
  3. 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF
  4. BF7-S-06 OmniFilter Undersink Filter System

    BF7-S-06 OmniFilter Undersink Filter System

    $81.99 Retail Price:  $85.99
  5. DUPONT-WFQTC90001

    DuPont WFQTC90001 Quick Twist 3rd Stage Replacement Filter

    Fits the Dupont-WFQT39000 Quick Twist Water Filter System Learn More
  6. 602854 Viqua Water Disinfection System UV Lamp

    602854 Viqua Water Disinfection System UV Lamp

    Fits Viqua PRO10 system. Fits Trojan G, G+ systems. Learn More
    $175.99 Retail Price:  $239.00
  7. FM-350-DWS Water Factory Systems FaucetMATE Faucet Filter System
  8. 47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter

    47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter

    Fits 3M Cuno Water Factory FaucetMATE FM DWS 1500 one-stage system Learn More
    $63.99 Retail Price:  $77.61
  9. 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
  10. K-201 Kohler Undersink Replacement Filter Cartridge

    K-201 Kohler Undersink Water Filter Cartridge Replacement

    Fits the Kohler Aquifer Water Filtration System K-200 Learn More
    $96.99 Retail Price:  $109.24
  11. F-601R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    F-601R 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
    $130.99 Retail Price:  $134.42
  12. 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
  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. FXSLC GE SmartSetWater Undersink Filter

    FXSLC GE SmartWater Undersink Filter Set

    Fits any brand of undersink water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
  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. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. CQE-RC-04020 Crystal Quest Nitrate Water Filter Cartridge
  22. CQE-RC-04016 Crystal Quest Multi Stage PLUS Water Filter Cartridge

    CQE-RC-04016 Crystal Quest Multi Stage PLUS Water Filter Cartridge

    For use primarily in Crystal Quest low flow countertop and undersink filtration systems. Also fits select refrigerator water filtration systems. Sized 2 7/8 inches by 20 inches. Learn More
    $138.99 Retail Price:  $178.24
  23. 20035 Hydrologic 4-Stage Reverse Osmosis Cartridge

    20035 Hydrologic 4-Stage Reverse Osmosis Cartridge

    Fits the Hydrologic EcoSpring water purification system Learn More
    $184.99 Retail Price:  $215.04
  24. 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
  25. WI-BG6000FFC Body Glove Water Filter Cartridge

    WI-BG6000FFC Body Glove Water Filter Cartridge

    For use in the WI-BG6000FF Body Glove Water Filtration System Learn More
    $290.21 Retail Price:  $349.95

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