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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  • FM-5050C PUR Flavor Options Faucet Filter System - Chrome
  • WHEEDF Whirlpool UltraEase Water Filter Pack

    WHEEDF Whirlpool UltraEase Water Filter Pack

    $47.99
    MSRP: $59.79
    Save 20%
  • CQE-RC-04006 Crystal Quest Fluoride Water Filter

    CQE-RC-04006 Crystal Quest Fluoride Water Filter

    $47.99
    MSRP: $63.24
    Save 24%
  • Omnipure ELF-10M-P Carbon Block with Polyphosphate

    Omnipure ELF-10M-P Carbon Block with Polyphosphate

    $47.99
    MSRP: $50.34
    Save 5%
  • CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge Comparable by Tier1
  • MATRIKX-CTO2-HD20 KX Technologies MatrikX Comparable Whole House Filter Replacement Cartridge by Tier1
  • 3M Aqua-Pure AP817 Whole House Water Filter Cartridge
  • EFS8002 Everpure Replacement Filter Cartridge

    EFS8002 Everpure Replacement Filter Cartridge

    $48.99
    MSRP: $58.64
    Save 16%
  • CB-45-2010 Hydronix Replacement Filter Cartridge

    CB-45-2010 Hydronix Replacement Filter Cartridge

    $48.99
    MSRP: $58.99
    Save 17%
  • Whirlpool WHAB-6010 Replacement Unit B Filter Cartridge

    WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    $48.99
    MSRP: $62.09
    Save 21%
  • WHKF-DWHBB Whirlpool Filter Housing with Pressure Relief Valve - Clear
  • U25 OmniFilter Whole House Water Filter System

    OmniFilter U25 Whole House Water Filtration System

    $48.99
    MSRP: $58.64
    Save 16%
  • CQE-SP-00808 Crystal Quest Bath Ball Filter

    CQE-SP-00808 Crystal Quest Bath Ball Filter

    $48.99
    MSRP: $58.64
    Save 16%
  • HE7-CM Sprite Shower Pure 7-Setting Hand-Held Shower Filter (Chrome)
  • 602733 Trojan UVMAX E4 Quartz UV Lamp Sleeve

    602733 Trojan UVMAX E4 Quartz UV Lamp Sleeve

    $49.00
    MSRP: $58.64
    Save 16%
  • CQ-1000-DS Rainshowr Shower Filter System with Whedon Designer Shower Head - Chrome
  • CQ-1000-MS Rainshowr Shower Filter System with Pro Massage - White
  • CQE-RC-04002 Crystal Quest PLUS Multi-Stage Replacement Filter Cartridge
  • EM-MM SteriPEN Portable UV System
  • TRC-MM SteriPEN Portable UV System
  • 8014644 Katadyn Hiker and Hiker Pro Backcountry Series Microfilter Replacement Cartridge
  • RWC-5 American Plumber Undersink Filter Replacement Cartridge
  • HD-950 Culligan Whole House Filter System

    HD-950 Culligan Whole House Water Filter System

    $49.99
    MSRP: $75.89
    Save 34%
  • CFS9720 Cuno Whole House Filter Replacement Cartridge

    CFS9720 Cuno Whole House Filter Replacement Cartridge

    $49.99
    MSRP: $61.97
    Save 19%
  • EV9720-06 Everpure S-54 Replacement Filter Cartridge

    EV9634-26 Everpure S-54 Water Filter Cartridge

    $49.99
    MSRP: $71.29
    Save 30%
  • 3US-PS01 Filtrete Undersink Filter System

    3US-PS01 Filtrete Undersink Filter System

    $49.99
    MSRP: $62.66
    Save 20%
  • HR5-CM Sprite Royale Handheld Shower Filter System - Chrome

    HR5-CM Sprite Royale Handheld Shower Filter System - Chrome

    $49.99
    MSRP: $59.79
    Save 16%
  • RS4-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • ELF-1M-P-KDF Omnipure Water Filter Cartridge

    ELF-1M-P-KDF Omnipure Water Filter Cartridge

    $49.99
    MSRP: $55.99
    Save 11%
  • CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge
  • 20Z-NBL Built NY Bottle Tote - Blue
  • 8014200 Katadyn Exstream XR Ultralight Series 28-Ounce Personal Water Purifier Bottle - Blue
  • 8014234 Katadyn Exstream XR Ultralight Series 28-Ounce Personal Water Purifier Bottle - Olive

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