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. CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (50-Pack)
  2. W20CLA American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W20CLA American Plumber Whole House Sediment Water Filter Cartridge (2-Pack)

    Built to fit into American Plumber W34-PR, WC34-PR and WVC34 whole house water filtration systems, in addition to most standard size water filtration system housings Learn More
    $11.99 MSRP:  $15.34
  3. W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $12.99 MSRP:  $16.34
  4. W30PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W30PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $16.99 MSRP:  $18.04
  5. W50PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W50PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $16.99 MSRP:  $18.39
  6. W50W American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W50W American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $13.99 MSRP:  $17.34
  7. W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)

    W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)

    Fits American Plumber W38-PR and most standard size water filter housings Learn More
    $21.99 MSRP:  $24.34
  8. W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $12.99 MSRP:  $16.34
  9. W5W American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W5W American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $13.99 MSRP:  $17.34
  10. WPD-110 American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    WPD-110 American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR, WVC34, WH34, ST-1, ST-2, ST-3 and most standard size water filter housings Learn More
    $14.99 MSRP:  $18.34
  11. WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge

    WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge

    Fits American Plumber W10-PR and W15-PR and most other heavy duty water filter housings Learn More
    $35.99 MSRP:  $39.99
  12. WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge

    WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge

    Fits American Plumber W2010-PR and W2015-PR and most other heavy duty water filter housings Learn More
    $69.99 MSRP:  $78.19
  13. 3M Aqua-Pure AP1001 Whole House Water Filter Cartridge

    AP1001 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $29.05 MSRP:  $40.24
  14. 3M Aqua-Pure AP1003 Water Filter Replacement Cartridge (2-Pack)

    AP1003 3M Aqua-Pure Whole House Filter Replacement Cartridge (2-Pack)

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $54.99 MSRP:  $71.29
  15. 3M Aqua-Pure AP101T Whole House Water Filter

    AP101T 3M Aqua-Pure Whole House Water Filtration System

    Fits onto 3/4-inch NPT water lines Learn More
    $103.99 MSRP:  $137.99
  16. 3M Aqua-Pure AP110 Whole House Water Filter Cartridge

    3M Aqua-Pure AP110 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
    $11.99 MSRP:  $18.14
  17. 3M Aqua-Pure AP110-2 Whole House Water Filter Cartridge

    AP110-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $20.99 MSRP:  $24.94
  18. 3M Aqua-Pure AP110-2C Whole House Water Filter Cartridge

    AP110-2C 3M Aqua-Pure Whole House Water Filter Cartridge

    Fits 3M Aqua-Pure whole house water filtration systems that accept 20 x 2.5 inch filters Learn More
  19. 3M Aqua-Pure AP110-3 Whole House Water Filter

    AP110-3 3M Aqua-Pure Replacement Water Filter Cartridge

    Fits the 3M Aqua-Pure AP110 Series of whole house water filtration systems Learn More
    $29.99 MSRP:  $34.49
  20. AP111 3M Aqua-Pure Whole House Filter Replacement Cartridge

    AP111 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
  21. 3M Aqua-Pure AP111-2 Whole House Water Filter

    AP111-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
  22. 3M Aqua-Pure AP117 Whole House Water Filter Cartridge

    3M Aqua-Pure AP117 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
    $28.99 MSRP:  $54.13
  23. 3M Aqua-Pure AP124 Whole House Water Filter Cartridge

    AP124 3M Aqua-Pure 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
    $12.99 MSRP:  $17.24
  24. 3M Aqua-Pure AP124-3 Water Filter

    AP124-3 3M Aqua-Pure Replacement Water Filter

    Fits standard filtration system housings that accept 30-inch x 2.5-inch water filter cartridges Learn More
    $29.99 MSRP:  $35.64
  25. 3M Aqua-Pure AP2150  Water Filter

    AP2150 3M Aqua-Pure Replacement Filter Cartridge Set (2-Pack)

    Fits the 3M Aqua-Pure AP2100 system Learn More

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