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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Items 1 to 48 of 64 total

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  • DGD-2501 Pentek Comparable Whole House Filter by Tier1
  • SDC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • RS16 Omnifilter Comparable Whole House Sediment Water Filter by Tier1
  • DGD-2501 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • SWC-45-1001 Comparable Hydronix String-Wound Sediment Water Filter by Tier1
  • SPC-25-2001 Hydronix Comparable Pleated 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
  • SPC-25-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1
  • PS1-20C Pentek Sediment Water Filter
  • WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  • DGD-2501 Pentek Whole House Water Filter
  • Pentek P1-20 Whole House Water Filter Replacement Cartridge
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $15.39
    MSRP: $23.99
    Save 36%
  • Pentek ECP1-BB Replacement Water Filter Cartridge

    Pentek ECP1-BB Water Filter Cartridge Replacement

    $15.99 MSRP: $17.12
    Save 7%
  • SPC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • TIER1-DGD1-20BB Whole House Sediment Water Filter
  • Everpure EV9618-02 Comparable Food Service Replacement Filter by Tier1
  • EV9618-02 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9618-01 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9618-06 Everpure Comparable Food Service Replacement Filter by Tier1
  • E5420-P-1M-SB Omnipure Comparable Food Service Replacement Filter by Tier1
  • AP317 Aquapure Comparable Food Service Replacement Filter by Tier1
  • Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge
  • Hydronix SDC-25-3001 Polypropylene Sediment Filter
  • Pentek PD-1-30 Polypropylene Sediment Filter
  • Pentek KO1HE3 Polypropylene High Efficiency Filter Bag

    Pentek KO1HE3 Polypropylene High Efficiency Filter Bag

    $16.99
    MSRP: $19.34
    Save 12%
  • PX01-30 Purtrex Sediment Filter Cartridge

    PX01-30 Purtrex Sediment Filter Cartridge

    $10.99
    MSRP: $15.99
    Save 31%
  • SWC-25-2001 Hydronix String Wound Sediment Water Filter (1 micron)
  • P1-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • GX01-30 Hytrex Water Filter Cartridge

    GX01-30 Hytrex Water Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%
  • BPHE-420-1 Pentek Polypropylene High Efficiency Bag Filter

    BPHE-420-1 Pentek Polypropylene High Efficiency Bag Filter

    $11.99
    MSRP: $16.55
    Save 28%
  • C8 Pentek Whole House Replacement Filter Cartridge
  • SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    $12.99
    MSRP: $16.09
    Save 19%
  • Purtrex PX01-40 Polypropylene Sediment Filter

    Purtrex PX01-40 Polypropylene Sediment Filter

    $12.99
    MSRP: $17.24
    Save 25%
  • E5320 Omnipure Replacement Filter Cartridge

    E5320 Omnipure Replacement Filter Cartridge

    $13.69
    MSRP: $21.99
    Save 38%
  • SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge
  • P1-30 Pentek Whole House Replacement Sediment Filter Cartridge

    P1-30 Pentek Whole House Sediment Water Filter

    $13.99
    MSRP: $14.13
    Save 1%
  • PD-1-20 Pentek Whole House Replacement Sediment Filter Cartridge
  • SDC-25-2001 Hydronix Sediment Water Filter Cartridge
  • AP-GRMB-01PP-20UB Whole House Replacement Water Filter by 3M Aqua-Pure
  • ECP1-20 Pentek Replacement Filter Cartridge

    ECP1-20 Pentek Replacement Filter Cartridge

    $15.99
    MSRP: $17.70
    Save 10%

Items 1 to 48 of 64 total

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