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

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Water Filtration Systems, Filters, & Parts

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. TFM-50-A Tier1 Reverse Osmosis Membrane

    TFM-50-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan reverse osmosis systems Learn More
  2. FRSS-2.5 Sterilight 2.5 GPM 1/2-inch Flow Restrictor
  3. FRSS-2.5 Viqua 2.5 GPM 1/2-inch Flow Restrictor

    FRSS-2.5 Viqua 2.5 GPM 1/2-inch Flow Restrictor

    1/2 x 1/2 inch FNPT fitting Learn More
    $69.99 MSRP:  $90.00

    Out of stock

  4. S330RL Viqua Water Disinfection System UV Lamp

    S330RL Viqua Water Disinfection System UV Lamp

    Fits Viqua VT4 and S2Q-PA systems Learn More
    $69.00 MSRP:  $89.99
  5. EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $22.00 Per Filter

  6. Pentek EPM-BB Replacement Water Filter Cartridge

    Pentek EPM-BB Water Filter Cartridge Replacement

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $23.00 Per Filter

  7. EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    Fits filtration system housings that accepts 10 x 4.5 inch cartridges Learn More

    As Low As $15.60 Per Filter

  8. FLOPLUS-10BB Pentek Comparable Whole House Carbon Water Filter by Tier1

    FLOPLUS-10BB Pentek Comparable Whole House Carbon Water Filter by Tier1

    Fits filtration system housings that accepts 10 x 4.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  9. 22070 Hydrologic Comparable Whole House Carbon Filter by Tier1

    22070 Hydrologic Comparable Whole House Carbon Filter by Tier1

    Sized at 10 x 4.5 inches, this filter will fit into all #10 Big Blue filtration system housings Learn More

    As Low As $0.00 Per Filter

  10. EP-BB Pentek Comparable Carbon Block Water Filter by Tier1

    EP-BB Pentek Comparable Carbon Block Water Filter by Tier1

    Fits filtration system housings that accepts 10 x 4.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  11. TW30-1812-50 Watts Comparable Reverse Osmosis Membrane by Tier1

    TW30-1812-50 Watts Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More
  12. TF-1812-50 Axeon Comparable Reverse Osmosis Membrane by Tier1

    TF-1812-50 Axeon Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More
  13. DBC-10EX2 Pentek Comparable Water Filter Cartridge Replacement by Tier1

    DBC-10EX2 Pentek Comparable Water Filter Cartridge Replacement by Tier1

    Fits filtration system housings that accepts 10 x 4.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  14. SF-7000 Shower Filter System with Chrome Shower Head by Tier1

    SF-7000 Shower Filter System with Chrome Shower Head by Tier1

    Fits most shower system with an easily detachable shower head. Learn More
    $38.99 MSRP:  $49.99
  15. SF-7001 Shower System Replacement Filter by Tier1

    SF-7001 Shower System Replacement Filter by Tier1

    Replacement filter for the Tier1 SF-7000 Shower Filter System with Chrome Shower Head Learn More
    $24.99 MSRP:  $32.99
  16. RWC-5 American Plumber Undersink Filter Replacement Cartridge

    RWC-5 American Plumber Undersink Filter Replacement Cartridge

    Fits most standard size water filter housings Learn More
  17. ISH-100 Culligan Level 2 Inline Shower Filter for 1/2 inch thread Shower Heads

    ISH-100 Culligan Level 2 Inline Shower Filter for 1/2 inch thread Shower Heads

    Fits any standard 1/2-inch threaded shower arm Learn More
    $26.69 MSRP:  $35.99
  18. ISH-200 Culligan Inline Shower Filter - Chrome

    ISH-200 Culligan Inline Shower Filter - Chrome

    Fits any 1/2-inch thread shower heads Learn More
    $33.19 MSRP:  $44.99
  19. RDSH-C115 Culligan Showerhead

    RDSH-C115 Culligan Showerhead

    Fits any 1/2-inch thread shower heads Learn More
    $38.99 MSRP:  $55.99

    Out of stock

  20. RWC-5 Culligan Level 1 Undersink Filter Replacement Cartridge

    RWC-5 Culligan Level 1 Undersink Filter Replacement Cartridge

    Fits Culligan Fulflo, WC12, LCA, WS-12, and any brand of water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
  21. CFS117-S Cuno Whole House Filter Replacement Cartridge

    CFS117-S Cuno Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $32.05 MSRP:  $40.24
  22. HF45-S Cuno Whole House Filter Replacement Cartridge

    HF45-S Cuno Whole House Filter Replacement Cartridge

    Fits the Cuno Food Service High Flow Series Models including all SGP, ESP, BREW, BEV, and ICE Systems Learn More
    $103.99 MSRP:  $120.39

    Out of stock

  23. TW30-1812-100HR Filmtec Reverse Osmosis Membrane (100GPD)

    TW30-1812-100HR Filmtec Reverse Osmosis Membrane (100GPD)

    Fits 100 gallon per day reverse osmosis systems from various brands Learn More
    $39.99 MSRP:  $48.29
  24. TW30-1812-24 Filmtec Reverse Osmosis Membrane

    TW30-1812-24 Filmtec Reverse Osmosis Membrane

    Fits 24 gallon per day reverse osmosis systems from various brands Learn More
    $23.99 MSRP:  $40.24
  25. TW30-1812-36 Filmtec Reverse Osmosis Membrane

    TW30-1812-36 Filmtec Reverse Osmosis Membrane

    Fits 36 gallon per day reverse osmosis systems from various brands Learn More
    $44.39 MSRP:  $62.99

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