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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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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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  • WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • 3M Aqua-Pure AP117 Whole House Water Filter Cartridge
  • AP117RO 3M Aqua-Pure Reverse Osmosis Filter

    3M Aqua-Pure AP117RO Reverse Osmosis Filter

    $23.99
    MSRP: $30.23
    Save 21%
  • 3M Aqua-Pure AP200 Under Sink Water Filter

    AP200 3M Aqua-Pure Undersink Water Filtration System

    $87.05
    MSRP: $135.69
    Save 36%
  • 3M Aqua-Pure AP317 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP517 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP5527 Reverse Osmosis Filter
  • 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    $25.99
    MSRP: $34.49
    Save 25%
  • 3M Aqua-Pure AP817 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP817-2 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP-C77 Undersink Filter Replacement Cartridge
  • 3M Aqua-Pure AP-DW70 Undersink Filter Replacement Cartridge
  • 3M Aqua-Pure APS117 Whole House Water Filter Replacement Cartridge
  • GAC-20 Pentek Replacement Filter Cartridge

    GAC-20 Pentek Replacement Filter Cartridge

    $17.99
    MSRP: $23.56
    Save 24%
  • GAC-BB Pentek Replacement Filter Cartridge

    GAC-BB Pentek Replacement Filter Cartridge

    $25.99
    MSRP: $30.51
    Save 15%
  • 3M Aqua-Pure AP510 Water Filter System

    AP510 3M Aqua-Pure Water Filtration System

    $141.99
    MSRP: $146.04
    Save 3%

19 Item(s)

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