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 135 total

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  • 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%
  • CB3 OmniFilter Undersink Filter Replacement Cartridge
  • HF8-S Cuno Whole House Filter Replacement Cartridge

    HF8-S Cuno Whole House Water Filter Cartridge

    $50.99
    MSRP: $62.09
    Save 18%
  • 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
  • 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
  • RC-5 Rainshow’r Replacement Water Filter

    RC-5 Rainshow’r Replacement Water Filter

    $51.99
    MSRP: $65.99
    Save 21%
  • CFS8720 Cuno Whole House Filter Replacement Cartridge

    CFS8720 Cuno Whole House Filter Replacement Cartridge

    $52.05
    MSRP: $61.97
    Save 16%
  • TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    $52.79
    MSRP: $114.99
    Save 54%
  • 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%
  • 3M Aqua-Pure AP810-2 Whole House Water Filter Cartridge
  • 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 Undersink 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
  • 166227 Pentek Big White 3/4-inch #20 Housing Assembly
  • BFS-201 Pentek Slim Line Filter Housing with Pressure Relief Valve
  • W9222901 Doulton Replacement Ceramic Filter
  • 1-140-F Rusco Polyester Screened Spin-Down Water Filtration System
  • DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane
  • CQE-SP-00804 Crystal Quest Luxury Handheld Shower Filter System
  • 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%
  • GXRTQ GE SmartWater Inline Filter System
  • 33001068 Hydrotech TFC Reverse Osmosis Membrane

    33001068 Hydrotech TFC Reverse Osmosis Membrane

    $54.99
    MSRP: $65.54
    Save 16%
  • 41400002 Hydrotech CTA Reverse Osmosis Membrane

    41400002 Hydrotech CTA Reverse Osmosis Membrane

    $54.99
    MSRP: $67.84
    Save 19%
  • 1-250-F Rusco Polyester Screened Spin-Down Water Filtration System
  • 1-40-F Rusco Polyester Screened Spin-Down Water Filtration System
  • FM-BB-20-1A Watts Pleated Water Filter Cartridge
  • 1-20006-WC Seychelle Royal 5-way Wall Mount Shower Head - Chrome
  • WIC-600 American Plumber Undersink Filter System

    WIC-600 American Plumber Undersink Filter System

    $55.99
    MSRP: $58.34
    Save 4%
  • 3M Aqua-Pure AP814-2 Whole House Water Filter
  • GXULQ GE Undersink Filter System

    GXULQ GE Undersink Filter System

    $55.99
    MSRP: $70.14
    Save 20%
  • 8013628 Katadyn Guide Backcountry Series Microfilter Replacement Cartridge
  • 1268260 Merlin Reverse Osmosis Flush Kit

    1268260 Merlin Reverse Osmosis Flush Kit

    $55.99
    MSRP: $66.69
    Save 16%
  • TFM-36-EB Desal Reverse Osmosis Membrane

    TFM-36-EB Desal Reverse Osmosis Membrane

    $56.09
    MSRP: $94.99
    Save 41%

Items 1 to 48 of 135 total

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