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. 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. Hydronix HF2-10CLWH12 Clear 10 inch Filter Housing

    Hydronix HF2-10CLWH12 Clear 10-inch x 2.5-inch Filter Housing

    Receives any standard 10-inch by 2.5-inch filter cartridge Learn More
    $15.99 MSRP:  $22.99
  3. 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
  4. W10-PR American Plumber Whole House Filter System
  5. W385-PR American Plumber Undersink Compact Filter System
  6. 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
  7. 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
    $25.99 MSRP:  $34.49
  8. CFS01S Cuno Whole House Filter Housing
  9. CFS02S Cuno Whole House Filter Housing
  10. CFS11S Cuno Whole House Filter Housing

    CFS11S Cuno Whole House Filter Housing

    $95.99 MSRP:  $101.19
  11. CFS22 Cuno Whole House Filter Housing

    CFS22 Cuno Whole House Filter Housing

    $128.99 MSRP:  $148.34
  12. OB5-S-05 OmniFilter Whole House Filter System

    OB5-S-05 OmniFilter Whole House Water Filtration System

    Built to fit onto standard 3/4-inch water lines. Uses 2.5x10 inch water filters. Learn More
    $29.99 MSRP:  $36.79
  13. IC-101L Pentek Inline Filter

    IC-101L Pentek Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $12.99
  14. TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $13.19 MSRP:  $20.99
  15. 650683 Trojan UV Max UV Water Purification System

    650683 Trojan UV Max UV Water Purification System

    Fits standard 1-inch water lines Learn More
  16. 650686 Trojan UV Max UV Water Purification System

    650686 Trojan UV Max UV Water Purification System

    Fits standard 1-inch water lines Learn More
  17. 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
  18. 650692 Trojan UV Max UV Water Purification System

    650692 Trojan UV Max UV Water Purification System

    Fits standard 3/4-inch water lines Learn More
  19. 650695 Trojan UV Max UV Water Purification System

    650695 Trojan UV Max UV Water Purification System

    Fits standard 3/4-inch water lines Learn More
  20. BF7-S-05 OmniFilter Undersink Filter System

    BF7-S-05 OmniFilter Undersink Water Filtration System

    Fits standard 1-inch NPS supply threads. Uses 4.5x10 inch replacement filter cartridges. Learn More
    $69.99 MSRP:  $82.79
  21. OB1-S-05 OmniFilter Undersink Filter System

    OB1-S-05 OmniFilter Undersink Filter System

    Fits standard 3/4-inch MPT lines Learn More
  22. CL10PF5-B Omnipure Sediment Inline Filter

    CL10PF5-B Omnipure Sediment Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $14.29 MSRP:  $19.99
  23. CL10ROT33-B Omnipure Inline Filter

    CL10ROT33-B Omnipure Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $12.19 MSRP:  $16.99
  24. CL10ROT33-C Omnipure Inline Filter

    CL10ROT33-C Omnipure Inline Filter

    Fits standard 3/8-inch water lines Learn More
    $9.99 MSRP:  $13.79
  25. CL10ROT40-B Omnipure Inline Coconut Carbon Filter

    CL10ROT40-B Omnipure Inline Coconut Carbon Filter

    Fits standard 1/4-inch water lines Learn More
    $11.09 MSRP:  $21.99

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