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Water Filtration Systems & Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

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  1. 47-55711G2 Water Factory Systems Whole House Replacement Filter Cartridge

    47-55711G2 Water Factory Systems Whole House Replacement Filter Cartridge

    Fits 3M Cuno Water Factory FaucetMATE FM-2 Lead Plus and FM-350 DWS systems Learn More
    $41.99 Retail Price:  $52.89
  2. Whirlpool WHKF-DB2 Undersink Replacement Water Filter Cartridge

    WHKF-DB2 Whirlpool Undersink Replacement Filter Cartridge

    Fits the Whirlpool WHKF-DUF Under Sink Filter Housing Learn More
    $21.99
  3. WSK-1 Water Sentinel Replacement Water Filters (2-Pack)

    WSK-1 Water Sentinel Replacement Water Filters (2-Pack)

    Fits select Ecowater, Whirlpool or Kenmore water filtration systems Learn More
    $26.99 Retail Price:  $33.34
  4. WHEEDF Whirlpool UltraEase Water Filter Pack

    WHEEDF Whirlpool UltraEase Water Filter Pack

    Fits the WHED20 Whirlpool dual stage drinking water filtration system Learn More
    $47.99 Retail Price:  $59.79
  5. 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
  6. WHERF Whirlpool Reverse Osmosis System Pre and Post Filter Set

    WHERF Whirlpool Reverse Osmosis System Pre and Post Filter Set

    Works with Whirpool WHER12 and WHER18 reverse osmosis systems Learn More
    $27.99 Retail Price:  $33.34

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