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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  1. FRSS-1.5 Sterilight 1.5 GPM 1/2-inch Flow Restrictor
  2. FRSS-1.5 Viqua 1.5 GPM 1/2-inch Flow Restrictor

    FRSS-1.5 Viqua 1.5 GPM 1/2-inch Flow Restrictor

    1/2 x 1/2 inch FNPT fitting Learn More
    $52.99 MSRP:  $90.00
  3. Pentair GF20-40BPPPDB Industrial Triflex Microfiberglass Cartridge

    Pentair GF20-40BPPPDB Industrial Triflex Microfiberglass Cartridge

    Fits systems that accept 40 x 2.5-inch filters Learn More
    $52.99 MSRP:  $67.99
  4. DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane

    DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane

    Fits the Dupont WFRO60X Reverse Osmosis System Learn More
  5. C2-02 Advanced Water Products 20-inch x 4.5-inch Replacement Carbon Whole House Filter

    C2-02 Advanced Water Products Replacement 20-inch x 4.5-inch Carbon Whole House Filter

    Fits most 20-inch x 4.5-inch filter housings, including the Trojan UV Max IHS12-D4 and IHS22-D4 Water Disinfection Systems Learn More
  6. CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)
  7. 602974 Viqua Quartz Sleeve for 602854 UV Lamp

    602974 Viqua Quartz Sleeve for 602854 UV Lamp

    For use with Viqua ultraviolet disinfection systems using the 602854 UV lamp Learn More
    $55.00 MSRP:  $66.99
  8. Pentair GF20-30BPPPDB Industrial Triflex Microfiberglass Cartridge

    Pentair GF20-30BPPPDB Industrial Triflex Microfiberglass Cartridge

    Fits systems that accept 30 x 2.5-inch filters Learn More
    $57.99 MSRP:  $72.99
  9. APRC1-P AquaPatrol Ice Machine Replacement Water Filter

    APRC1-P AquaPatrol Ice Machine Replacement Water Filter

    Fits the Scotsman ADS-AP1 AquaPatrol Water Filtration System Learn More
    $58.05 MSRP:  $94.99
  10. Pentek 150236 Big Blue Heavy Duty Filter Housing

    Pentek 150236 Big Blue Heavy Duty Filter Housing

    Receives any standard 20 inch by 4.5 inch filter cartridge Learn More
    $58.99 MSRP:  $73.99
  11. 8017757 Katadyn MyBottle Ultralight Series 24-Ounce Personal Water Purifier Bottle - Green Deer
  12. 22120 Hydrologic Stealth RO 100GPD Membrane

    22120 Hydrologic Stealth RO 100GPD Membrane

    Fits 1/4-inch inline shut-off valve Learn More
    $59.99 MSRP:  $64.99
  13. Hydronix HF45-10BLBK15 Filter Housing (Blue)

    Hydronix HF45-10BLBK15 Filter Housing (Blue)

    Accepts standard 10 x 4.5-inch filters Learn More
    $59.99 MSRP:  $75.99
  14. CP5-BBS-D Culligan Comparable Whole House Sediment Water Filter by Tier1 (6-Pack)
  15. Pentek 166142 Big White 20-inch x 4.5-inch Filter Housing

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

    Receives any standard 20-inch by 4.5-inch filter cartridge Learn More
    $51.99 MSRP:  $65.54
  16. W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge

    W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge

    Fits Doulton HIP, HIS and HCPS housings (NOT gravity-fed) Learn More
    $54.39 MSRP:  $73.99
  17. 602974 Trojan UV Max Quartz Sleeve

    602974 Trojan UV Max Quartz Sleeve

    Fits Trojan UVMAX G, G Plus and Pro10 Systems Learn More
  18. ZR-006 ZeroWater Replacement Filter Cartridge (4-Pack)

    ZR-006 ZeroWater Replacement Filter Cartridge (4-Pack)

    Fits ZeroWater brand pitchers, dispensers and water cooler bottles Learn More
    $55.99 MSRP:  $79.99
  19. W9223021 Doulton Ceramic Water Filter

    W9223021 Doulton Ultracarb Ceramic Water Filter

    Replacement cartridge for water filtration systems that are included with Franke Triflow faucets Learn More
    $50.05 MSRP:  $70.14
  20. HSH-C135 Culligan Handheld Filtered Shower Head with Massage

    HSH-C135 Culligan Handheld Filtered Shower Head with Massage

    Fits any standard 1/2-inch threaded shower arm Learn More
    $50.29 MSRP:  $67.99
  21. W9122190 Doulton SuperCarb SI Replacement Element

    W9122190 Doulton SuperCarb SI Ceramic Water Filter

    Fits all Doulton short mount Countertop, Undersink and Inline Water Filtration Systems Learn More
    $50.36 MSRP:  $60.21
  22. EV9611-00 Everpure 4H Replacement Filter Cartridge

    EV9611-00 Everpure 4H Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $50.89 MSRP:  $94.99
  23. C-LC 3M Aqua-Pure Undersink Water Filter

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

    Fits the 3M Aqua-Pure Easy Drinking Water System, Easy LC and Easy LP Replacement Systems Learn More
    $50.99 MSRP:  $65.54
  24. CB3 OmniFilter Undersink Filter Replacement Cartridge

    CB3-SS6-06 OmniFilter Undersink Filter Replacement Cartridge

    Fits any brand of undersink water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $50.99
  25. HF8-S Cuno Whole House Filter Replacement Cartridge

    HF8-S Cuno Whole House Water Filter Cartridge

    Fits the Cuno Food Service SF18-S for high-temperature equipment Learn More
    $50.99 MSRP:  $62.09

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