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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  • Hydronix SPC-25-1005 Pleated Water Filter
  • Pentek C1 Comparable Carbon Block Water Filter by Tier1

    C1 Pentek Comparable Carbon Block Water Filter by Tier1

    $10.99 MSRP: $19.99
    Save 45%
  • W5CIP American Plumber Whole House Carbon Water Filter by Tier1
  • WHKF-DB1 Whirlpool Comparable Under Sink Water Filter by Tier1
  • SWC-25-2005 Hydronix Comparable String Wound Sediment Water Filter (5 micron) by Tier1
  • SWC-25-2005 Hydronix Comparable String Wound Sediment Water Filter (5 micron) by Tier1
  • AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    $11.39
    MSRP: $16.99
    Save 33%
  • Hydronix SDC-25-4005 Polypropylene Sediment Filter

    Hydronix SDC-25-4005 Polypropylene Sediment Filter

    $11.99
    MSRP: $13.56
    Save 12%
  • FXWTC GE Comparable Whole House Water Filter 2-Pack by Tier1
  • AP-GRMB-05PP-20UB Whole House Replacement Filter by 3M Aqua-Pure
  • Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    $11.99 MSRP: $15.34
    Save 22%
  • DGD-5005 Pentek Whole House Filter Replacement Cartridge by Tier1
  • TO1SS OmniFilter Whole House Water Filter
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • ECP5-BB Pentek Comparable Whole House Water Filter by Tier1

    ECP5-BB Pentek Comparable Whole House Water Filter by Tier1

    $11.99 MSRP: $19.99
    Save 40%
  • D-10 Twin Culligan Comparable Whole House Carbon Water Filter by Tier1
  • D-15 Culligan Whole Comparable House Carbon Water Filter by Tier1
  • WH-STDCW-F02 Filtrete Comparable Whole House Carbon Filter by Tier1
  • TO1DS OMNIFILTER Comparable Whole House Carbon Water Filter by Tier1 (2-Pack)
  • C1 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • SDC-25-3005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • CP5-BBS-D Culligan Comparable Whole House Water Filter by Tier1
  • W30PEHD American Plumber Comparable Whole House Sediment Water Filter by Tier1
  • CQE-RC-04033 Crystal Quest Comparable Whole House Water Filter by Tier1
  • HB-10-5W Harmsco Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-1005 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-1010 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • RS15 Omnifilter Comparable Whole House Sediment Water Filter by Tier1
  • ECP50-BB Pentek Comparable Whole House Sediment Filter by Tier1
  • TO6 OmniFilter Comparable Whole House Sediment Water Filter by Tier1
  • CP5-BBS-D Culligan Culligan Comparable Whole House Sediment Water Filter by Tier1
  • SWC-45-1001 Comparable Hydronix String-Wound Sediment Water Filter by Tier1
  • SWC-45-1005 Hydronix Comparable String-Wound Sediment Water Filter by Tier1
  • SWC-45-1010 Hydronix Comparable String-Wound Sediment Water Filter by Tier1
  • WP10BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1
  • WP5BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1
  • WPX10BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1
  • WPX5BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1
  • SWC-45-1001 Comparable Hydronix String-Wound Sediment Water Filter by Tier1
  • C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • ECP5-BB Pentek Whole House Water Filter
  • C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • Pentek 255579-43 Inline Sediment Water Filter Replacement

    Pentek 255579-43 Inline Sediment Water Filter Replacement

    $14.29
    MSRP: $21.99
    Save 35%
  • DGD-5005 Pentek Whole House Filter Cartridge
  • Hydronix SPC-45-1005 Whole House Sediment Filter Cartridge

Items 1 to 48 of 135 total

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