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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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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14 Item(s)

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  • W9120562 Doulton Sterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9142010 Doulton Replacement Ceramic Filter

    W9142010 Doulton Replacement Ceramic Filter

    $17.00
    MSRP: $18.39
    Save 8%
  • W9377010 Doulton Gravity Filter System
  • 1120070 Katadyn Siphon Filter

    1120070 Katadyn Siphon Filter

    $79.95
    MSRP: $94.24
    Save 15%
  • 20720 Katadyn Replacement Filter Element

    20720 Katadyn Replacement Filter Element

    $62.09
    MSRP: $81.99
    Save 24%
  • 20743 Katadyn Replacement Ceramic Element

    20743 Katadyn Replacement Ceramic Element

    $72.39
    MSRP: $93.99
    Save 23%
  • 8015035 Katadyn Vario Backcountry Series Replacement Ceramic Prefilter Disc
  • 8013632 Katadyn Mini Ultralight Series Microfilter Replacement Cartridge
  • CRE-1 Pentek Undersink Filter Replacement Cartridge

    CRE-1 Pentek Undersink Filter Replacement Cartridge

    $24.69
    MSRP: $34.99
    Save 29%
  • W9220406 Doulton Replacement Ceramic Filter

    W9220406 Doulton Replacement Ceramic Filter

    $32.00
    MSRP: $63.99
    Save 50%
  • W9220402 Doulton Slim Line Replacement Ceramic Filter

    W9220402 Doulton Slim Line Replacement Ceramic Filter

    $26.00
    MSRP: $34.55
    Save 25%
  • W9222901 Doulton Replacement Ceramic Filter
  • W9223021 Doulton Ceramic Water Filter

    W9223021 Doulton Ultracarb Ceramic Water Filter

    $30.00
    MSRP: $70.14
    Save 57%
  • CQE-RC-04005 Crystal Quest Ceramic Water Filter Cartridge

    CQE-RC-04005 Crystal Quest Ceramic Water Filter Cartridge

    $60.09
    MSRP: $77.99
    Save 23%

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