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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  • 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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  • W9222910 Doulton Replacement Ceramic Filter

    W9222910 Doulton Supercarb Replacement Ceramic Filter

    $43.85
    MSRP: $52.73
    Save 17%
  • W9220402 Doulton Slim Line Replacement Ceramic Filter

    W9220402 Doulton Slim Line Replacement Ceramic Filter

    $30.99
    MSRP: $34.55
    Save 10%
  • W9223022 Doulton Replacement Ceramic Filter

    W9223022 Doulton Ultracarb Replacement Ceramic Filter

    $70.99
    MSRP: $82.65
    Save 14%
  • W9123085 Doulton Imperial UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge
  • W9222901 Doulton Replacement Ceramic Filter
  • W9330958 Doulton SuperCarb Undersink Ceramic Candle Filter System
  • W9121302 Doulton Imperial Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9331028 Doulton SuperCarb Countertop Filter System

    W9331028 Doulton HCP SuperCarb Countertop Filter System

    $147.05
    MSRP: $174.79
    Save 16%
  • W9121202 Doulton AquaCera Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9331208 Doulton Countertop Filter System

    W9331208 Doulton HCS Countertop Water Filtration System

    $253.94
    MSRP: $294.33
    Save 14%
  • W9223021 Doulton Ceramic Water Filter

    W9223021 Doulton Ultracarb Ceramic Water Filter

    $50.05
    MSRP: $70.14
    Save 29%
  • W9330059 Doulton Undersink Water Filtration System

    W9330059 Doulton HIP Undersink Water Filtration System

    $114.49
    MSRP: $167.99
    Save 32%
  • W9361230 Doulton Gravity Water Filter

    W9361230 Doulton HCA Gravity Water Filter

    $60.09
    MSRP: $145.99
    Save 59%
  • 3M AquaPure 3MFF101 Whole House Water Filter Cartridge

    3MFF101 3M Aqua-Pure Replacement Water Filter Cartridge

    $200.99
    MSRP: $209.29
    Save 4%
  • 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%
  • 3M AquaPure 3MFF100 Drinking Water Filter System
  • EV9601-77 Everpure VOC #2 Replacement Filter Cartridge

    EV9601-77 Everpure VOC #2 Replacement Filter Cartridge

    $133.09
    MSRP: $171.99
    Save 23%
  • CBC-10BB-WF Tier1 Water Filter Cartridge

    CBC-BB Pentek Comparable Water Filter Cartridge by Tier1

    $42.99
    MSRP: $60.59
    Save 29%
  • CBC-20 Tier1 Water Filter Cartridge

    CBC-20 Tier1 Water Filter Cartridge

    $25.99
    MSRP: $32.77
    Save 21%
  • CBC-20BB-WF Tier1 Water Filter Cartridge

    CBC-20BB-WF Tier1 Water Filter Cartridge

    $68.99
    MSRP: $84.99
    Save 19%
  • C-200 Rainshow’r Condor Drinking Water Filtration System

    C-200 Rainshow’r Condor Drinking Water Filtration System

    $199.99
    MSRP: $232.29
    Save 14%
  • RC-0.5 Rainshow’r Replacement Water Filter

    RC-0.5 Rainshow’r Replacement Water Filter

    $92.99
    MSRP: $115.00
    Save 19%
  • BT-300 Rainshow’r Breakthrough Drinking Water Filtration System
  • BG-1000 Body Glove Water Filtration System

    BG-1000 Body Glove Water Filtration System

    $343.99
    MSRP: $426.95
    Save 19%
  • BG-1000C Body Glove Replacement Water Filter Cartridge

    BG-1000C Body Glove Replacement Water Filter Cartridge

    $119.99
    MSRP: $139.95
    Save 14%
  • BG-3000 Body Glove Water Filtration System

    BG-3000 Body Glove Water Filtration System

    $410.99
    MSRP: $516.95
    Save 20%
  • WI-BG6000FF Body Glove Water Filter System

    WI-BG6000FF Body Glove Water Filter System

    $499.99
    MSRP: $662.95
    Save 25%
  • WI-BG6000FFC Body Glove Water Filter Cartridge

    WI-BG6000FFC Body Glove Water Filter Cartridge

    $313.19
    MSRP: $408.99
    Save 23%
  • FQROPF GE Profile SmartWater Ultra Plus Reverse Osmosis Replacement Filter Set By Tier1

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