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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  • D-250A Culligan Undersink Filter Replacement Cartridge Set

    D-250A Culligan Undersink Filter Replacement Cartridge Set

    $33.19
    MSRP: $46.99
    Save 29%
  • Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge

    WHKF-GAC Whirlpool Undersink Replacement Filter Cartridge

    $10.99
    MSRP: $20.34
    Save 46%
  • MATRIKX-Pb1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • CBR2-10 Pentek Undersink Filter Replacement Cartridge
  • CBR2-10R Pentek Undersink Filter Replacement Cartridge

    CBR2-10R Pentek Undersink Filter Replacement Cartridge

    $20.29
    MSRP: $27.99
    Save 28%

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