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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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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  • 5-Stage Reverse Osmosis System by Tier1

    5-Stage Reverse Osmosis System by Tier1

    $159.99
    MSRP: $249.99
    Save 36%
  • Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    $107.99
    MSRP: $130.99
    Save 18%
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (12-Pack)
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (25-Pack)
  • W9330059 Doulton Undersink Water Filtration System

    W9330059 Doulton HIP Undersink Water Filtration System

    $114.49
    MSRP: $167.99
    Save 32%
  • US-UF3 Culligan Ultrafiltration Drinking Water System
  • H2O+ Brondell Cypress Countertop Water Filtration System (#H630)
  • 3M AquaPure 3MFF101 Whole House Water Filter Cartridge

    3MFF101 3M Aqua-Pure Replacement Water Filter Cartridge

    $200.99
    MSRP: $209.29
    Save 4%
  • CQE-CT-00132 Crystal Quest Countertop Fluoride Water Filter: Double Fluoride PLUS
  • 200524 Axeon 4021 PVC Membrane Housing

    200524 Axeon 4021 PVC Membrane Housing

    $154.99
    MSRP: $190.99
    Save 19%
  • BW2000A Flojet Bottled Water Dispensing System

    BW2000A Flojet Bottled Water Dispensing System

    $189.99
    MSRP: $225.99
    Save 16%

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