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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!
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  • 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.

33 Item(s)

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  • HBSF-Grn Hydros Side-Fill Water Purifier Bottle - Green Lid
  • HBSF-Orng Hydros Side-Fill Water Purifier Bottle - Orange Lid

    Orange Lid Hydros Side-Fill Water Purifier Bottle

    $27.99
    MSRP: $34.49
    Save 19%
  • HBSF-Pnk Hydros Side-Fill Water Purifier Bottle - Pink Lid
  • WFFMC103X DuPont Faucet Mount Replacement Cartridges - High Protection Filter (3-pack)
  • DuPont WFPT200X Mirage Filtered Water Pitcher
  • DuPont WFPTC053X Water Pitcher Replacement Cartridge 3 Pack
  • ZR-017 ZeroWater Replacement Filter Cartridge (2-Pack)
  • 67106 Aquamira Frontier Pro Portable Filter System (Military)
  • ATLANTIS-BLUE-PITCHER Brita 48-Ounce Water Pitcher

    Brita Atlantis Blue Water Filter Pitcher (48 Ounce)

    $26.99
    MSRP: $33.34
    Save 19%
  • 35507 Brita Classic OB01 48-Ounce Water Pitcher

    Brita Classic Water Filter Pitcher (48 Ounce, #OB01)

    $22.05
    MSRP: $33.34
    Save 34%
  • 42378 Brita Deluxe OB26 80-Ounce Water Pitcher
  • 35503 Brita OB03 Pitcher Replacement Cartridge (3-Pack)

    35503 Brita OB03 Pitcher Replacement Cartridge (3-Pack)

    $23.99
    MSRP: $29.89
    Save 20%
  • 42432 Brita OB03 Pitcher Replacement Cartridge (4-Pack)

    42432 Brita OB03 Pitcher Replacement Cartridge (4-Pack)

    $29.99
    MSRP: $37.94
    Save 21%
  • 42629 Brita Slim OB11 40-Ounce Water Pitcher

    42629 Brita Slim OB11 40-Ounce Water Pitcher

    $20.99
    MSRP: $26.44
    Save 21%
  • CRF-950Z-3 PUR Pitcher Replacement Cartridge (3-Pack)

    CRF-950Z-3 PUR Pitcher Replacement Cartridge (3-Pack)

    $25.99
    MSRP: $36.79
    Save 29%
  • PR-3 Culligan Water Pitcher Replacement Cartridge (3-Pack)
  • PR-3U Culligan Universal Water Pitcher Replacement Cartridge (3-Pack)
  • FXMLH GE Faucet Filter Replacement Cartridge
  • HBSF-Char Hydros Side-Fill Water Purifier Bottle - Charcoal Lid
  • 8014523 Katadyn Micro Ultralight Series Microfilter Replacement Cartridge
  • LSCF Lifesaver Replacement Activated Carbon Filter (4-Pack)
  • PF-300T OmniFilter Water Pitcher Replacement Cartridge (3-Pack)
  • PF-500 OmniFilter 14-cup Water Pitcher

    PF-500 OmniFilter Water Filter Pitcher (14-Cup)

    $29.99
    MSRP: $36.79
    Save 18%
  • HF-10 Brondell H2O+ Water Pitcher Filters (3-Pack)

    HF-10 Brondell H2O+ Water Pitcher Filters (3-Pack)

    $25.99
    MSRP: $29.89
    Save 13%
  • 35214 Brita On Tap Water Faucet Filtration System

    35214 Brita On Tap Water Faucet Filtration System

    $24.99
    MSRP: $36.79
    Save 32%
  • Brita Bella Water Filter Pitcher (#35455)
  • ZeroWater Filtered Tumbler & Replacement Filters (26 ounce, #ZT-M01)
  • Dupont WFFM300XW Low Profile Faucet Mount Drinking Water Filter System
  • Tier1 Replacement Pitcher Filters (6-Pack)

    Tier1 Replacement Pitcher Filters (6-Pack)

    $26.99
    MSRP: $36.99
    Save 27%
  • 30027 New Wave Enviro Barrier Replacement Filter 3-Pack

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