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!

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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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  • You’re guaranteed to find expert help!

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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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  • SB-2R Water Bottle Replacement Filters (2-Pack)

    SB-2R Water Bottle Replacement Filters (2-Pack)

    $7.99
    MSRP: $11.49
    Save 30%
  • WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter
  • Brita Intenza IZ-2219 Comparable Replacement Coffee Water Filter by Tier1
  • Braun KWF2 Comparable Coffee Water Filter Replacement by Tier1
  • Brita Intenza Plus IZ-2227 Comparable Coffee Water Filter Replacement by Tier1
  • 35501 Brita OB03 Pitcher Replacement Cartridge

    35501 Brita OB03 Pitcher Replacement Cartridge

    $9.99
    MSRP: $13.79
    Save 28%
  • PR-1 Culligan Pitcher Replacement Cartridge

    PR-1 Culligan Water Filter Pitcher Replacement Cartridge

    $6.99
    MSRP: $12.52
    Save 44%
  • HBSF-1FLT Hydros Fast-Flow Side-Fill Water Purifier Bottle Replacement Filter
  • PF-300S OmniFilter Water Pitcher Replacement Cartridge
  • 35818 Brita Water Bottle Replacement Filters

    35818 Brita Water Bottle Replacement Filters

    $9.99
    MSRP: $15.00
    Save 33%
  • 30041 New Wave Enviro Alkaline Pitcher Replacement

    30041 New Wave Enviro Alkaline Pitcher Replacement

    $8.29
    MSRP: $14.99
    Save 45%
  • Brita Water Purifier Bottle Replacement Filter (2-Pack)

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