Discount Water Filters and Air Filters at Discount Filter

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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  • 3M Aqua-Pure AP1003 Water Filter Replacement Cartridge (2-Pack)
  • TFM-36-EB Desal Reverse Osmosis Membrane

    TFM-36-EB Desal Reverse Osmosis Membrane

    MSRP: $94.99
    Save 41%
  • TFM-24-EB Desal Reverse Osmosis Membrane
  • CQE-RC-04049 Crystal Quest Fluoride Multi Replacement Filter Cartridge
  • 3M Aqua-Pure AP810-2 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP814-2 Whole House Water Filter
  • 3M Aqua-Pure AP811-2 Whole House Water Filter
  • 4WH-QS-F01 Filtrete Replacement Filter Cartridge

    4WH-QS-F01 3M Filtrete Replacement Water Filter

    MSRP: $82.79
    Save 28%

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