Discount Water Filters and Air Filters at Discount Filter

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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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HWF100 Holmes Comparable Humidifier Replacement Wick Filter by Tier1 (3-Pack)
HWF55 Holmes Comparable Humidifier Replacement Filter by Tier1 (2 Pack)
HC-813 Honeywell Comparable Humidifier Wick Filter by Tier1
THF13 Lasko Comparable Humidifier Wick Filter by Tier1 (2-Pack)
W10311524 Whirlpool Fresh Flow Refrigerator Air Filter by Tier1
Frigidaire EPTWFU01 Refrigerator Water Filter Combo with PAULTRA Air Filter
ULTRAWF Frigidaire PureSource Refrigerator Water Filter with PAULTRA Air Filter Combo
WF2CB Frigidaire and PAULTRA Frigidaire Comparable Refrigerator Water Filter and Air Filter Combo By Tier1

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  • WI-BG12000C Body Glove Replacement Filter Cartridge

    WI-BG12000C Body Glove Replacement Filter Cartridge

    MSRP: $386.95
    Save 25%

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