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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Items 1 to 48 of 74 total

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  • ARIES-AF-20-3690-BB

    ARIES-AF-20-3690-BB

    $126.05
    MSRP: $159.84
    Save 21%
  • HYDRONIX-SDC-25-3025

    HYDRONIX-SDC-25-3025

    $8.99
    MSRP: $10.91
    Save 18%
  • Hydronix SDC-25-4025 Polypropylene Sediment Filter
  • TIER1-P25-30

    TIER1-P25-30

    $11.49
  • SDC-25-4025 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • TIER1-RFC20-934

    TIER1-RFC20-934

    $23.99
  • PD-25-934 Pentek Comparable Whole House Water Filter by Tier1
  • AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    $16.99
    MSRP: $22.99
    Save 26%
  • AF-10-1053 Aries Specialty Cartridge Hydrogen Sulfide Removal
  • AF-10-2011 Aries Specialty Cartridge 10-inch x 2.5-inch 1 LBS KDF/GAC
  • RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    $23.99
    MSRP: $27.99
    Save 14%
  • Aries AF-10-2115 KDF/Granular Activated Carbon

    Aries AF-10-2115 KDF/Granular Activated Carbon

    $39.99
    MSRP: $49.00
    Save 18%
  • DGD-7525-20 Pentek Whole House Water Filter
  • DGD-7525 Pentek Whole House Sediment Filter
  • Pentek WP25BB97P Whole House Water Filter Replacement Cartridge
  • Pentek WPX25BB97P Whole House Water Filter Replacement Cartridge
  • Tier1 P20-20BB Whole House Replacement Sediment Filter Cartridge
  • FXHTC GE Comparable Whole House Radial Flow Carbon Water Filter by Tier1
  • AP-GRMB-20PP-10UB Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • SDC-25-1020 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • GX20-9-78 Hytrex Comparable Whole House Sediment Water Filter by Tier1
  • P25 Pentek Comparable Whole House Sediment Filter by Tier1
  • PS20-10C Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PX20-9-78 Purtrex Comparable Whole House Sediment Water Filter by Tier1
  • AP817 3M Aqua-Pure Comparable Whole House Carbon Water Filter by Tier 1
  • RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1
  • RFC-BB Pentek Comparable Whole House Carbon Water Filter by Tier1
  • RFC20-BB Pentek Comparable Granular Activated Carbon Filter by Tier1
  • RFC-93 Whole House Filter Replacement Cartridge by Tier1
  • RFC-20 Whole House Filter Replacement Cartridge by Tier1
  • RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    $48.99
    MSRP: $56.99
    Save 14%
  • RFC-20 Pentek Comparable Whole House Filter Replacement Cartridge by Tier1
  • HARMSCO-PO-25-G1PS-EA

    HARMSCO-PO-25-G1PS-EA

    $18.99
  • Pentek BPHE-410-25 Polypropylene High Efficiency Filter Bag
  • PENTEK-PO25G4S

    PENTEK-PO25G4S

    $6.19
  • W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • AP111 3M Aqua-Pure Whole House Filter Replacement Cartridge
  • 3M Aqua-Pure AP111-2 Whole House Water Filter
  • ARIES-AF-10-3690

    ARIES-AF-10-3690

    $28.99
    MSRP: $32.19
    Save 10%
  • CRYSTAL-QUEST-CQE-RC-04049

    CRYSTAL-QUEST-CQE-RC-04049

    $57.00
    MSRP: $66.69
    Save 15%
  • HARMSCO-PO-25-G2PS-EA

    HARMSCO-PO-25-G2PS-EA

    $22.99
  • KE25G1S Pentek Polyester Felt Bag Filter

    KE25G1S Pentek Polyester Felt Filter Bag

    $4.09
    MSRP: $7.00
    Save 42%
  • KO25G2S Pentek Polypropylene Bag Filter

    KO25G2S Pentek Polypropylene Bag Filters

    $6.05
    MSRP: $9.42
    Save 36%
  • KO25HE2 Pentek Polypropylene High Efficiency Bag Filter

    KO25HE2 Pentek Polypropylene High Efficiency Bag Filter

    $16.99
    MSRP: $19.34
    Save 12%
  • INLINE-WATER-FILTERS-85470

    INLINE-WATER-FILTERS-85470

    $23.99
    MSRP: $29.08
    Save 18%

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