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

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  • 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 147 total

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  • HF8-S Cuno Whole House Filter Replacement Cartridge
  • 153070 Pentek Filter Housing Sump

    153070 Pentek Filter Housing Sump

    $51.99
    MSRP: $57.95
    Save 10%
  • 3G-STANDARD-20-CLEAR-PR20 Pentek Whole House 20 inch Filter Housing
  • Pentek 166142 Big White 20-inch x 4.5-inch Filter Housing

    Pentek 166142 Big White 20-inch x 4.5-inch Filter Housing

    $51.99
    MSRP: $65.54
    Save 21%
  • CFS8720 Cuno Whole House Filter Replacement Cartridge

    CFS8720 Cuno Whole House Filter Replacement Cartridge

    $52.05
    MSRP: $61.97
    Save 16%
  • 3M Aqua-Pure AP810-2 Whole House Water Filter Cartridge
  • 166227 Pentek Big White 3/4-inch #20 Housing Assembly
  • BFS-201 Pentek Slim Line Filter Housing with Pressure Relief Valve
  • 3WH-HD-S01 Filtrete Whole House Sump System

    3WH-HD-S01 3M Filtrete Whole House Sump Filter System

    $54.99
    MSRP: $66.69
    Save 18%
  • 22017 Hydrologic Replacement De-Ionization Cartridge

    22017 Hydrologic Deionization Filter Cartridge

    $54.99
    MSRP: $71.29
    Save 23%
  • FM-BB-20-1A Watts Pleated Water Filter Cartridge
  • 3M Aqua-Pure AP814-2 Whole House Water Filter
  • CFS8110 Cuno Whole House Filter Replacement Cartridge

    CFS8110 Cuno Whole House Filter Replacement Cartridge

    $56.99
    MSRP: $61.97
    Save 8%
  • 1-500-F Rusco Polyester Screened Spin-Down Water Filtration System
  • FLOPLUS 20BB Comparable Water Filter Cartridge by Tier1

    CBC-20BB Pentek Replacement Filter Cartridge by Tier1

    $57.99
    MSRP: $136.99
    Save 58%
  • RFC20-BB Pentek Carbon Filter Replacement Cartridge

    RFC20-BB Pentek Replacement Filter Cartridge

    $57.99 MSRP: $82.91
    Save 30%
  • CFS8720-S Cuno Whole House Filter Replacement Cartridge

    CFS8720-S Cuno Whole House Filter Replacement Cartridge

    $58.05
    MSRP: $64.39
    Save 10%
  • 3M Aqua-Pure AP811-2 Whole House Water Filter
  • 4WH-QS-F01 Filtrete Replacement Filter Cartridge
  • PGE-2 Water Sentinel ProGuard Swamp Cooler Replacement Filter Cartridge
  • W10-PR American Plumber Whole House Filter System

    W10-PR American Plumber Whole House Filter System

    $59.99
    MSRP: $67.84
    Save 12%
  • HSH-C135 Culligan Handheld Filtered Shower Head with Massage
  • EV9611-00 Everpure 4H Replacement Filter Cartridge

    EV9611-00 Everpure 4H Replacement Filter Cartridge

    $50.69
    MSRP: $94.99
    Save 47%
  • C-LC 3M Aqua-Pure Undersink Water Filter

    C-LC 3M Aqua-Pure Undersink Water Filter Cartridge

    $50.99
    MSRP: $65.54
    Save 22%
  • CB3 OmniFilter Undersink Filter Replacement Cartridge
  • 1-40101-W Seychelle Family Water Pitcher
  • HM8-CM Sprite PureMist Filtered Shower Handle - Chrome
  • HF-32 Brondell H2O+ Cypress Nanotrap Water Filter

    HF-32 Brondell H2O+ Cypress Nanotrap Water Filter

    $51.69
    MSRP: $66.99
    Save 23%
  • FM-5 Culligan Level 3 On-Tap Faucet Filter System
  • EV9259-24 Everpure QL3B Single Filter Head with Bracket, Shut-off valve, and 3/8 inch NPT threads
  • RC-5 Rainshow’r Replacement Water Filter

    RC-5 Rainshow’r Replacement Water Filter

    $51.99
    MSRP: $65.99
    Save 21%
  • 4CB5 Everpure Replacement Filter Cartridge

    4CB5 Everpure Replacement Filter Cartridge

    $52.79
    MSRP: $83.99
    Save 37%
  • EFS8002-S Everpure Replacement Filter Cartridge

    EFS8002-S Everpure Replacement Filter Cartridge

    $52.79
    MSRP: $83.99
    Save 37%
  • ROM-16C Pentek Reverse Osmosis Replacement Membrane

    ROM-16C Pentek Reverse Osmosis Replacement Membrane

    $52.79
    MSRP: $76.99
    Save 31%
  • EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    $52.99
    MSRP: $59.79
    Save 11%
  • FQROPF GE Profile SmartWater Ultra Plus Reverse Osmosis Filter Set
  • CTW-10-WF Tier1 Countertop Water Filter System
  • 9602 Moen Replacement Filter Cartridge for ChoiceFlo Faucet Systems
  • W9123085 Doulton Imperial UltraCarb Countertop Ceramic Candle Replacement Filter Cartridge
  • Sprite HO2-BN High Output Universal Shower Filter (Brushed Nickel)
  • 3M Aqua-Pure AP111-2 Whole House Water Filter
  • 3M Aqua-Pure AP-C77 Undersink Filter Replacement Cartridge
  • W9223026 Doulton Replacement Ceramic Filter
  • W9222901 Doulton Replacement Ceramic Filter
  • 1-140-F Rusco Polyester Screened Spin-Down Water Filtration System
  • DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane

    DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane

    $53.99
    MSRP: $65.99
    Save 18%
  • CQE-SP-00804 Crystal Quest Luxury Handheld Shower Filter System
  • 3M Aqua-Pure AP1003 Water Filter Replacement Cartridge (2-Pack)

Items 1 to 48 of 147 total

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