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 377 total

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  • RO-PL5000 PuROLine Reverse Osmosis Filter System

    RO-PL5000 PuROLine Reverse Osmosis Filter System

    $232.39
    MSRP: $318.99
    Save 27%
  • PT3000T50-SS-AD PuROTwist PuROTwist Reverse Osmosis Filter System
  • PT4000T50-SS-AG PuROTwist PuROTwist Reverse Osmosis Filter System
  • 5EZ-50 Valueline Reverse Osmosis Filter System

    5EZ-50 Valueline Reverse Osmosis Filter System

    $179.99
    MSRP: $186.29
    Save 3%
  • 66-1311 Water Factory Systems Reverse Osmosis Membrane

    66-1311 Water Factory Systems Reverse Osmosis Membrane

    $365.99
    MSRP: $488.74
    Save 25%
  • 66-1315 Water Factory Systems Reverse Osmosis Membrane

    66-1315 Water Factory Systems Reverse Osmosis Membrane

    $529.99
    MSRP: $611.79
    Save 13%
  • 66-4311 Water Factory Systems Reverse Osmosis Membrane

    66-4311 Water Factory Systems Reverse Osmosis Membrane

    $359.29
    MSRP: $693.99
    Save 48%
  • 66-4506G2 Water Factory Systems Countertop Reverse Osmosis Membrane
  • 3MROM413-20A Water Factory Systems TFC Reverse Osmosis Membrane
  • 66-4709G2 Water Factory Systems Reverse Osmosis Membrane

    66-8709G2 Water Factory Systems Reverse Osmosis Membrane

    $188.09
    MSRP: $251.99
    Save 25%
  • SQC-3 Water Factory Systems Reverse Osmosis Filter System

    SQC-3 Water Factory Systems Reverse Osmosis Filter System

    $389.99
    MSRP: $450.79
    Save 13%
  • SQC-4 Water Factory Systems Reverse Osmosis Filter System
  • 4VTFC25G-PB Hydrotech Pushbutton Reverse Osmosis Filter System

    4VTFC25G-PB Hydrotech Pushbutton Reverse Osmosis Filter System

    $285.99
    MSRP: $324.29
    Save 12%
  • 4VTFC50G Hydrotech Reverse Osmosis Filter System

    4VTFC50G Hydrotech Reverse Osmosis Filter System

    $267.99
    MSRP: $289.79
    Save 8%
  • 4VTFC50G-PB Hydrotech Pro Series Reverse Osmosis Filter System

    4VTFC50G-PB Hydrotech Pro Series Reverse Osmosis Filter System

    $279.99
    MSRP: $324.29
    Save 14%
  • 4VTFC75G-PB Hydrotech Pushbutton Reverse Osmosis Filter System

    4VTFC75G-PB Hydrotech Pushbutton Reverse Osmosis Filter System

    $299.99
    MSRP: $335.79
    Save 11%
  • LSB4 Lifesaver 4000UF Water Bottle
  • LSB6 Lifesaver 6000UF Water Bottle
  • LSJC10 Lifesaver 10000UF Jerrycan
  • LSJC20 Lifesaver 20000UF Jerrycan
  • 31040 Hydrologic Stealth-RO200 Reverse Osmosis Water Filtration System
  • LP-40 CUNO Water Factory Commercial Reverse Osmosis Water Filtration System
  • WHER25 Whirlpool Reverse Osmosis Undersink Water Filtration System
  • 31035 Hydrologic Stealth-RO100 Reverse Osmosis Filtration System

    31035 Hydrologic Stealth-150 Reverse Osmosis Filtration System

    $164.99
    MSRP: $225.00
    Save 27%
  • AP-RO5500 3M Aqua-Pure Reverse Osmosis System

    AP-RO5500 3M Aqua-Pure Reverse Osmosis System

    $499.99
    MSRP: $805.99
    Save 38%
  • 4373574 Whirlpool Undersink Filter Kit
  • 4002124 American Plumber Whole House Sediment Filter System

    4002124 American Plumber Whole House Sediment Filter System

    $699.99
    MSRP: $807.29
    Save 13%
  • 100186 Amway eSpring Replacement Filter Cartridge
  • 110720 Amway eSpring UV Water Purification System
  • 3M Aqua-Pure AP101T Whole House Water Filter

    AP101T 3M Aqua-Pure Whole House Water Filtration System

    $103.99
    MSRP: $137.99
    Save 25%
  • 3M Aqua-Pure AP2150  Water Filter
  • 3M Aqua-Pure AP903 Water Filter System

    AP903 3M Aqua-Pure Water Filtration System

    $239.99
    MSRP: $342.69
    Save 30%
  • 3M Aqua-Pure AP910R Water Filter

    AP910R 3M Aqua-Pure Replacement Filter Cartridge

    $118.99
    MSRP: $128.79
    Save 8%
  • 3M Aqua-Pure AP917R Water Filter Cartridge
  • 3M Aqua-Pure RO3RC Reverse Osmosis Pre and Post Filter Set
  • WI-BG12000C Body Glove Replacement Filter Cartridge

    WI-BG12000C Body Glove Replacement Filter Cartridge

    $290.21
    MSRP: $386.95
    Save 25%
  • WI-BG3000C Body Glove Replacement Filter Cartridge

    WI-BG3000C Body Glove Replacement Filter Cartridge

    $158.99
    MSRP: $192.95
    Save 18%
  • WI-BG3000R Body Glove Replacement Filter Cartridge

    WI-BG3000R Body Glove Replacement Filter Cartridge

    $145.99
    MSRP: $174.95
    Save 17%
  • CQE-CO-02025 Crystal Quest Commercial Reverse Osmosis Filter System

    CQE-CO-02025 Crystal Quest Commercial Reverse Osmosis Filter System

    $2,499.99
    MSRP: $2,877.29
    Save 13%
  • CQE-CO-02028 Crystal Quest Commercial Reverse Osmosis Filter System

    CQE-CO-02028 Crystal Quest Commercial Reverse Osmosis Filter System

    $5,099.99
    MSRP: $5,867.29
    Save 13%
  • CQE-CT-00142 Crystal Quest Countertop Reverse Osmosis Filter System
  • CQE-WC-00906 Crystal Quest Water Cooler

    CQE-WC-00906 Crystal Quest Water Cooler

    $599.99
    MSRP: $692.29
    Save 13%
  • CQE-WC-00907 Crystal Quest Water Cooler

    CQE-WC-00907 Crystal Quest Water Cooler

    $702.99
    MSRP: $810.74
    Save 13%
  • CQE-WC-00908 Crystal Quest Turbo Ultrafiltration Countertop Water Cooler
  • CQE-WC-00909 Crystal Quest Water Cooler

    CQE-WC-00909 Crystal Quest Water Cooler

    $596.99
    MSRP: $688.84
    Save 13%
  • CQE-WH-01132 Crystal Quest 2.0 Whole House Nitrate Filter System

    CQE-WH-01132 Crystal Quest 2.0 Whole House Nitrate Filter System

    $1,659.99
    MSRP: $1,911.29
    Save 13%
  • CQE-WH-01215 Crystal Quest Multi 1.5 Whole House Iron Hydrogen Sulfide Filter System
  • CQP-WC-05900 Crystal Quest Water Cooler

    CQP-WC-05900 Crystal Quest Water Cooler

    $792.99
    MSRP: $910.79
    Save 13%

Items 1 to 48 of 377 total

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