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

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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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37 Item(s)

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  • C1-20 Pentek Comparable Whole House Water Filter by Tier1 (2-Pack)
  • C1-20 Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)
  • Pentair NEPP12-20DB Pureflex Pleated Polypropylene Cartridge
  • Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge

    Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge

    $62.99
    MSRP: $77.99
    Save 19%
  • KX-MATRIKX-1-20 Matrikx Comparable Whole House Carbon Water Filter by Tier1
  • CR1-20 KX MatrikX Comparable Whole House Carbon Water Filter by Tier1
  • CHLORPLUS-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • FLOPLUS-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • AP817-2 Aquapure Comparable Granular Activated Carbon Filter by Tier1
  • SWC-45-2001 Hydronix Comparable String-Wound Sediment Water Filter by Tier1
  • RFC-20 Whole House Filter Replacement Cartridge by Tier1
  • RFC-20 Pentek Comparable Whole House Filter Replacement Cartridge by Tier1
  • 3M Aqua-Pure AP111-2 Whole House Water Filter
  • CFBC-20 Pentek Replacement Filter Cartridge

    CFBC-20 Pentek Replacement Water Filter Cartridge

    $23.49
    MSRP: $29.31
    Save 20%
  • 22043 KDF Hydrologic Carbon Pre-Filter For Evolution-RO1000

    22043 KDF Hydrologic Carbon Pre-Filter For Evolution-RO1000

    $45.99
    MSRP: $55.19
    Save 17%
  • 3M Aqua-Pure AP110-2 Whole House Water Filter Cartridge
  • FLOPLUS-20 Pentek Replacement Filter Cartridge

    FLOPLUS-20 Pentek Replacement Filter Cartridge

    $30.99
    MSRP: $38.99
    Save 21%
  • PCF1-20MB Pentek Whole House Filter Replacement Cartridge

    PCF1-20MB Pentek Whole House Filter Replacement Cartridge

    $42.99
    MSRP: $49.67
    Save 13%
  • WS-20 Pentek Water Softening Filter

    WS-20 Pentek Water Softening Filter

    $26.99
    MSRP: $35.64
    Save 24%
  • KDF55-20 Tier1 Replacement Filter Cartridge
  • MATRIKX-1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-Pb1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • CBC-20 Pentek Replacement Filter Cartridge
  • CQE-RC-04014 Crystal Quest Carbon Block Water Filter Cartridge
  • CQE-RC-04015 Crystal Quest Reusable Pleated Water Filter

    CQE-RC-04015 Crystal Quest Reusable Pleated Water Filter

    $28.99
    MSRP: $35.99
    Save 19%
  • CQE-RC-04016 Crystal Quest Multi Stage PLUS Water Filter Cartridge
  • CQE-RC-04020 Crystal Quest Nitrate Water Filter Cartridge
  • CB-25-2001 Hydronix Carbon Water Filter Replacement

    CB-25-2001 Hydronix Carbon Water Filter Replacement

    $28.99
    MSRP: $35.99
    Save 19%
  • CBC-20 Pentek Comparable Water Filter Cartridge by Tier1

    CBC-20 Pentek Comparable Water Filter Cartridge by Tier1

    $25.99
    MSRP: $32.77
    Save 21%
  • KDF85-20 Tier1 Water Filter
  • 3M Aqua-Pure AP124-2C Water Filter

    AP124-2C 3M Aqua-Pure Water Filter

    $26.99
    MSRP: $38.99
    Save 31%
  • CHLORPLUS-20 Pentek Replacement Whole House Filter

    CHLORPLUS-20 Pentek Replacement Whole House Filter

    $33.99
    MSRP: $39.99
    Save 15%
  • 655148-43/DFX-CB-20 Pentek Diamond Polyspun Carbon Block Replacement
  • Pentek RFC-20 Whole House Water Filter Replacement Cartridge

    RFC-20 Pentek Whole House Filter Replacement Cartridge

    $28.99 MSRP: $37.99
    Save 24%

37 Item(s)

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