Discount Water Filters and Air Filters at Discount Filter Store.com

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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. AF-20-3690-BB Aries Replacement Whole House Fluoride Removal Filter

    AF-20-3690-BB Aries Whole House Fluoride Removal Filter

    Fits most housings that accept 20 inch x 4.5 filter cartridges Learn More
    $126.05 MSRP:  $171.99
  2. ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)
  3. ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (6-Pack)
  4. ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)

    ECP5-20 Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)

    Fits most 20 x 5-inch filter housings Learn More

    (Retail Price: $531.99 ) $449.99

  5. CFS22 Cuno Whole House Filter Housing

    CFS22 Cuno Whole House Filter Housing

    $128.99 MSRP:  $148.34
  6. FPIR-BB-20 Watts Whole House Replacement Filter Cartridge

    FPIR-BB-20 Watts Whole House Iron Water Filter Cartridge

    For use in water filtration system housings that use a 20-inch x 4.5-inch filter Learn More
  7. MATRIKX-Pb1-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge

    MATRIKX-Pb1-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 4 1/2-inch replacement filter cartridges Learn More
    $123.99
  8. W20FFPH1CBPR Watts Flowmatic Big Clear Whole House Water Filter Housing

    W20FFPH1CBPR Watts Flowmatic Big Clear Whole House Water Filter Housing

    Fits 20-inch by 4.5-inch water filter Learn More
    $110.99 MSRP:  $113.34

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