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. IHS22-D4 Trojan UV Disinfection System

    IHS22-D4 Trojan UV Disinfection System

    Uses a 20-inch Big Blue 5-micron sediment filter and a 20-inch Big Blue 5-micron carbon block filter before the UV treatment chamber Learn More
  2. VH410M Viqua Home Plus UltraViolet Water Disinfection System

    VH410M Viqua Home Plus UltraViolet Water Disinfection System

    Fits standard 3/4-inch - 1-inch Combo NPT fittings Learn More
    $839.00 MSRP:  $1125.00

    Out of stock

  3. VIQUA-E4

    650682 E4 Viqua Professional UltraViolet Water Disinfection System

    Fits standard 1-inch inlet/outlet Learn More
    $889.00 MSRP:  $1185.00
  4. VIQUA-E4+
  5. VIQUA-E4-V

    660040-R E4-V Viqua Professional Plus UltraViolet Water Disinfection System

    Fits standard 1-inch inlet/outlet Learn More
    $965.00 MSRP:  $1285.00

    Out of stock

  6. 150564 Pentek Whole House Water Filter System (Clear/ Blue)

    150564 Pentek Whole House Water Filter System (Clear/ Blue)

    Fits Quick Connect 3/4-inch NPT Learn More
    $77.99

    Out of stock

  7. 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
  8. HFPP-34-PR-20 Pentek Big Blue Whole House 20 inch Filter (6-Pack)
  9. HFPP-1-PR20 Pentek Big Blue Whole House 20 inch Filter (6-Pack)
  10. PL44-122NAC15 Pentek Bag Filter Housing - Carbon Steel

    PL44-122NAC15 Pentek Bag Filter Housing - Carbon Steel

    Fits standard 2-inch water lines Learn More
  11. MPST-1 Pentek Multi-Purpose Cartridge and Bag Filter Housing - Stainless Steel
  12. 3M Aqua-Pure AP431 Inline Filter Replacement Cartridge

    AP431 3M Aqua-Pure Inline Filter Replacement Cartridge

    Fits 3M Aqua-Pure AP430 and AP430-SS filtered hot water systems Learn More
    $30.99 MSRP:  $49.56
  13. 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    Fits any 1/4-inch plastic or copper water line Learn More
    $31.99 MSRP:  $34.49
  14. 3M Aqua-Pure AP917R Water Filter Cartridge

    AP917R 3M Aqua-Pure Replacement Filter Cartridge

    Fits the 3M Aqua-Pure AP903 Water Filtration System Learn More
  15. W9320004 Doulton HIS Undersink Water Filtration System

    W9320004 Doulton HIS Undersink Water Filtration System

    Fits 10 inch by 2 inch short thread filter candles Learn More
    $127.00 MSRP:  $235.99
  16. HFPP-34-PR-20 Pentek Big Blue Whole House 20 inch Filter Housing
  17. HFPP-1-PR10 Pentek Big Blue Whole House 10 inch Filter Housing
  18. HFPP-1-PR20 Pentek Big Blue Whole House 20 inch Filter Housing
  19. ST-1 Pentek Filter Housing - Stainless Steel

    ST-1 Pentek Filter Housing - Stainless Steel

    Fits standard 3/4-inch water lines Learn More
    $167.99 MSRP:  $191.81
  20. ST-2 Pentek Filter Housing - Stainless Steel

    ST-2 Pentek Filter Housing - Stainless Steel

    Fits standard 3/4-inch water lines Learn More
    $239.89 MSRP:  $368.99
  21. ST-3 Pentek Filter Housing - Stainless Steel

    ST-3 Pentek Filter Housing - Stainless Steel

    Fits standard 3/4-inch water lines Learn More
    $283.99 MSRP:  $345.79

    Out of stock

  22. ST-BC-8 Pentek Filter Housing - Stainless Steel

    ST-BC-8 Pentek Filter Housing - Stainless Steel

    Fits standard 2-inch water lines Learn More
    $901.99 MSRP:  $904.34

    Out of stock

  23. 650683 Trojan UV Max UV Water Purification System

    650683 Trojan UV Max UV Water Purification System

    Fits standard 1-inch water lines Learn More
  24. 650686 Trojan UV Max UV Water Purification System

    650686 Trojan UV Max UV Water Purification System

    Fits standard 1-inch water lines Learn More
  25. 650690 Trojan UV Max UV Water Purification System

    650690 Trojan UV Max UV Water Purification System

    Fits standard 3/4-inch water lines Learn More

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