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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!

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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.

19 Item(s)

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  • K2528-KK Omnipure GAC Inline Water Filter

    K2528-KK Omnipure GAC Inline Water Filter

    $11.99
    MSRP: $17.99
    Save 33%
  • WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  • Pentek WS-10 Water Softening Water Filter

    Pentek WS-10 Water Softening Filter

    $19.99 MSRP: $24.83
    Save 19%
  • Q5328 Omnipure Water Filter

    Q5328 Omnipure Water Filter

    $10.99
    MSRP: $14.94
    Save 26%
  • WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%
  • FM-25R Culligan Replacement Faucet Filter

    FM-25R Culligan Replacement Faucet Filter

    $12.99
    MSRP: $24.99
    Save 48%
  • E5654 Omnipure Water Softening Water Filter

    E5654 Omnipure Water Softening Water Filter

    $14.05
    MSRP: $26.54
    Save 47%
  • GXRTQR GE Smart Water In-Line Comparable Replacement Cartridge by Tier1
  • 8013624 Katadyn Replacement Filter Element (2-Pack)

    8013624 Katadyn Replacement Filter Element (2-Pack)

    $14.95
    MSRP: $19.49
    Save 23%
  • F5-WHITE Instapure Complete Faucet Filter System - White
  • R5-1PK Instapure Complete Faucet Filter Replacement Cartridge
  • Q5648 Omnipure Calcite Water Filter

    Q5648 Omnipure Calcite Water Filter

    $16.99
    MSRP: $21.84
    Save 22%
  • WQCCC11 Watts Kwik-Change Pre-Carbon Water Filter Cartridge
  • E5520-K Omnipure Water Filter

    E5520-K Omnipure Water Filter

    $17.99
    MSRP: $49.99
    Save 64%
  • CQE-RC-04046 Crystal Quest Replacement Faucet Filter

    CQE-RC-04046 Crystal Quest Replacement Faucet Filter

    $17.99
    MSRP: $24.14
    Save 25%
  • E5620 Omnipure E-Series Everpure Compatible Filter

    E5620 Omnipure E-Series Everpure Compatible Filter

    $18.99
    MSRP: $36.79
    Save 48%
  • 8011553 Katadyn Exstream Ultralight Series Personal Water Purifier Cyst Filter
  • Dupont WFFM100XW Premier Faucet Mount Drinking Water Filter
  • Dupont WFFM100XCH Faucet Mount Filter System (chrome)

19 Item(s)

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