Discount Water Filters and Air Filters at Discount Filter Store.com

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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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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 56 total

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  • K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    $21.09
    MSRP: $33.99
    Save 38%
  • P1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • P1-20BB Sediment Water Filter by Tier1
  • WFFMC103X DuPont Faucet Mount Replacement Cartridges - High Protection Filter (3-pack)
  • WFDWC40001 DuPont Universal Drinking Water Carbon Block Cartridge
  • SWC-45-2001 Hydronix Comparable String-Wound Sediment Water Filter by Tier1
  • SWC-45-2001 Hydronix Comparable String-Wound Sediment Water Filter by Tier1
  • WP1BB20P Pentek Comparable String-Wound Sediment Water Filter by Tier1
  • DGD-2501-20 Pentek Whole House Sediment Filter
  • SPC-45-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1
  • SPC-45-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1
  • FM-BB-20-1A Flow Max Comparable Pleated Sediment Water Filter by Tier1
  • HB-20-1W Harmsco Comparable Pleated Sediment Water Filter by Tier1
  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge
  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    $26.99 MSRP: $28.39
    Save 5%
  • Everpure EV9617-21 Comparable Food Service Replacement Filter by Tier1
  • EV9612-50 Comparable Food Service Replacement Filter by Tier1
  • EV9612-51 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9612-00 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9612-55 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV3107-51 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9617-21 Everpure Comparable Food Service Replacement Filter by Tier1
  • ELF-5M-P-SB Omnipure Comparable Food Service Replacement Filter by Tier1
  • 4621-12 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • 4621-31 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • CFS9710-S Cuno Comparable Food Service Replacement Filter by Tier1
  • FL4S Follett Comparable Food Service Replacement Filter by Tier1
  • 130245 Follett Comparable Food Service Replacement Filter by Tier1
  • 954297 Follett Comparable Food Service Replacement Filter by Tier1
  • E5620 Omnipure E-Series Everpure Compatible Filter

    E5620 Omnipure E-Series Everpure Compatible Filter

    $20.09
    MSRP: $41.99
    Save 52%
  • K2520-JJ Omnipure Inline Filter

    K2520-JJ Omnipure Inline Filter

    $20.99
    MSRP: $29.99
    Save 30%
  • SPC-45-1001 Hydronix Pleated Sediment Water Filter

    SPC-45-1001 Hydronix Pleated Sediment Water Filter

    $20.99
    MSRP: $27.99
    Save 25%
  • Dupont WFFM100XCH Faucet Mount Filter System (chrome)

    Dupont WFFM100XCH Faucet Mount Filter System (Chrome)

    $21.39
    MSRP: $35.99
    Save 41%
  • E5520 Omnipure Replacement Filter Cartridge

    E5520 Omnipure Replacement Filter Cartridge

    $21.99
    MSRP: $26.44
    Save 17%
  • 1063-15-BA-K233 KX Technologies Whole House Replacement Filter Cartridge
  • K2515-JJ Omnipure Lead Cyst Inline Filter

    K2515-JJ Omnipure Lead Cyst Inline Filter

    $22.09
    MSRP: $33.99
    Save 35%
  • E5620-P Omnipure Replacement Filter Cartridge

    E5620-P Omnipure Replacement Filter Cartridge

    $22.19
    MSRP: $33.99
    Save 35%
  • PCC218 Pentek Replacement Filter Cartridge

    PCC218 Pentek Replacement Filter Cartridge

    $23.99
    MSRP: $26.44
    Save 9%
  • K5515-JJ Omnipure Inline Water Filter

    K5515-JJ Omnipure Inline Water Filter

    $23.99
    MSRP: $29.89
    Save 20%
  • CRE-1 Pentek Undersink Filter Replacement Cartridge

    CRE-1 Pentek Undersink Filter Replacement Cartridge

    $24.69
    MSRP: $34.99
    Save 29%
  • CB-45-1001 Hydronix Replacement Whole House Filter Cartridge
  • K5615-BB Omnipure Carbon Block Inline Filter

    K5615-BB Omnipure Carbon Block Inline Filter

    $24.99
    MSRP: $31.04
    Save 19%
  • Q5620-P Omnipure Replacement Filter Cartridge

    Q5620-P Omnipure Replacement Filter Cartridge

    $25.39
    MSRP: $36.99
    Save 31%
  • K5520-BB Omnipure Carbon Block Inline Filter

    K5520-BB Omnipure Carbon Block Inline Filter

    $25.39
    MSRP: $30.99
    Save 18%
  • 41400010 Hydrotech Lead Filter
  • E5720-P Omnipure Replacement Filter Cartridge

    E5720-P Omnipure Replacement Filter Cartridge

    $25.99
    MSRP: $32.19
    Save 19%
  • K5515-BB Omnipure Lead Cyst Inline Filter

    K5515-BB Omnipure Lead Cyst Inline Filter

    $26.49
    MSRP: $35.99
    Save 26%
  • E5615 Omnipure Replacement Filter Cartridge

    E5615 Omnipure Replacement Filter Cartridge

    $26.99
    MSRP: $40.24
    Save 33%

Items 1 to 48 of 56 total

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