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!
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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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  • WFHDC8001 DuPont Universal Heavy Duty Carbon Wrap 2-Phase Cartridge
  • DGD-2501-20 Pentek Whole House Sediment Filter
  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    $26.99 MSRP: $28.39
    Save 5%
  • Pentek ECP50-BB Whole House Water Filter Replacement Cartridge
  • EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    $27.99 MSRP: $32.32
    Save 13%
  • Pentek EPM-BB Replacement Water Filter Cartridge

    Pentek EPM-BB Water Filter Cartridge Replacement

    $26.99 MSRP: $34.49
    Save 22%
  • RS6-SS2-S06 OmniFilter Whole House Cartridge
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    $22.99 MSRP: $26.34
    Save 13%
  • TO6-SS2-S06 OmniFilter Whole House Water Filter
  • Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    $25.49
    MSRP: $32.99
    Save 23%
  • W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W50PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • RFC-BBS-D Culligan Level 4 Whole House Filter Replacement Cartridge
  • FXHSC GE SmartWater Whole House Filter Replacement Cartridge
  • HB-10-5W Harmsco Calypso Blue Replacement Filter Cartridge
  • GAC-BB Pentek Replacement Filter Cartridge

    GAC-BB Pentek Replacement Filter Cartridge

    $26.59
    MSRP: $36.99
    Save 28%
  • RFC-BB Pentek Whole House Filter Replacement Cartridge - 1
  • CQE-RC-04033 Crystal Quest Reusable Pleated Water Filter

    CQE-RC-04033 Crystal Quest Reusable Pleated Water Filter

    $22.99
    MSRP: $33.34
    Save 31%
  • CB-45-1001 Hydronix Replacement Whole House Filter Cartridge
  • NCP-BB Pentek Comparable Whole House Carbon Filter by Tier1

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