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

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

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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  • Hydronix SDC-45-2005 Whole House Sediment Filter Cartridge
  • DGD-5005-20 Pentek Whole House Water Filter

    DGD-5005-20 Pentek Whole House Filter Replacement Cartridge

    $23.99 MSRP: $25.76
    Save 7%
  • ECP5-20BB Pentek Whole House Filter Cartridge
  • ECP5-BB Pentek Whole House Water Filter
  • Pentek WP5BB97P Replacement Water Filter Cartridge
  • 3M Aqua-Pure AP810 Whole House Water Filter Cartridge

    3M Aqua-Pure AP810 Whole House Filter Replacement Cartridge

    $33.99
    MSRP: $46.64
    Save 27%
  • 3M Aqua-Pure AP810-2 Whole House Water Filter Cartridge
  • CP5-BBS-D Culligan Level 4 Whole House Filter Replacement Cartridge
  • HB-20-5W Harmsco Calypso Blue Replacement Filter Cartridge

    HB-20-5W Harmsco Calypso Blue Replacement Filter Cartridge

    $31.99
    MSRP: $36.79
    Save 13%
  • HC40-5 Harmsco Replacement Filter Cartridge

    HC40-5 Harmsco Replacement Filter Cartridge

    $92.99
    MSRP: $95.34
    Save 2%
  • SPC-45-2005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • WP5BB20P Pentek Replacement Filter Cartridge

    WP5BB20P Pentek Replacement Filter Cartridge

    $34.99
    MSRP: $42.54
    Save 18%

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