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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. SDC-45-2010 Hydronix Comparable Sediment Water Filter by Tier1

    SDC-45-2010 Hydronix Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 20 x 2.5-inch filters Learn More
    $19.99 Retail Price:  $32.99
  2. SDC-45-2050 Hydronix Comparable Sediment Water Filter by Tier1

    SDC-45-2050 Hydronix Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 20 x 4.5-inch filters Learn More
    $20.99 Retail Price:  $28.99
  3. Viqua VP600 Cobalt Series UltraViolet Disinfection System

    Viqua VP600 Cobalt Series UltraViolet Disinfection System (30 gpm)

    Fits any standard 1-inch inlet/outlet Learn More
    $785.99 Retail Price:  $788.34
  4. Viqua VP950 UltraViolet Water Disinfection System

    Viqua VP950 UltraViolet Water Disinfection System (46 gpm)

    Fits any standard 1-1/2-inch inlet/outlet Learn More
    $965.99 Retail Price:  $1275.00
  5. 650682 E4 Viqua Professional UltraViolet Water Disinfection System

    650682 E4 Viqua Professional UltraViolet Water Disinfection System

    Fits standard 1-inch inlet/outlet Learn More
    $885.99 Retail Price:  $1185.00
  6. 650683 E4+ Viqua UltraViolet Water Disinfection System

    650683 E4+ Viqua Professional Plus UltraViolet Water Disinfection System

    Fits standard 1-inch inlet/outlet Learn More
    $1,275.99 Retail Price:  $1695.00
  7. 650659 PRO30 Viqua UltraViolet Water Disinfection System

    650659 PRO30 Viqua Professional Plus UltraViolet Water Disinfection System

    Utilizes 1-1/4-inch MNPT x 1-inch FNPT combo fitting Learn More
    $2,795.99 Retail Price:  $3745.00
  8. 650652 Trojan UV Max UV System

    650652 Trojan UV Max UV System

    Fits 1-inch and 1-1/4-inch inlet/outlet Learn More
  9. 650653 Trojan UV Max UV System

    650653 Trojan UV Max UV System

    Fits 1-inch and 1-1/4-inch inlet/outlet Learn More
  10. Hydronix SDC-25-4005 Polypropylene Sediment Filter

    Hydronix SDC-25-4005 Polypropylene Sediment Filter

    Standard 40 inch by 2.5 inch size fits many standard size filter housings Learn More
    $12.99 Retail Price:  $13.56
  11. Hydronix SDC-25-4025 Polypropylene Sediment Filter

    Hydronix SDC-25-4025 Polypropylene Sediment Filter

    Standard 40 inch by 2.5 inch size fits many standard size filter housings Learn More
    $12.99 Retail Price:  $14.34
  12. Hydronix SDC-25-4075 Polypropylene Sediment Filter

    Hydronix SDC-25-4075 Polypropylene Sediment Filter

    Standard 40 inch by 2.5 inch size and double open end design fits many common filter housings. Also available in a variety of micron ratings and end cap styles. Learn More
    $12.99 Retail Price:  $14.34
  13. W20CLHD American Plumber Whole House Heavy Duty Filter Cartridge

    W20CLHD 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
    $18.99
  14. W20CLHD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge

    W20CLHD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge

    Fits American Plumber W2010-PR and W2015-PR and most other 20-inch heavy duty water filter housings Learn More
    $29.99 Retail Price:  $35.64
  15. W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge

    W30PEHD 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
    $24.99 Retail Price:  $27.34
  16. W50PEHD American Plumber Whole House Heavy Duty Filter Cartridge

    W50PEHD 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
    $24.99 Retail Price:  $27.34
  17. 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
    $30.99 Retail Price:  $34.49
  18. 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 Retail Price:  $35.64
  19. 3M Aqua-Pure AP810 Whole House Water Filter Cartridge

    AP810 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 4 1/2 filter cartridges Learn More
    $34.99 Retail Price:  $35.64
  20. 3M Aqua-Pure AP810-2 Whole House Water Filter Cartridge

    AP810-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $54.99 Retail Price:  $60.94
  21. 3M Aqua-Pure AP811 Whole House Water Filter Cartridge

    AP811 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 4 1/2 filter cartridges Learn More
    $37.99 Retail Price:  $43.69
  22. 3M Aqua-Pure AP811-2 Whole House Water Filter

    AP811-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $60.99 Retail Price:  $66.69
  23. 3M Aqua-Pure AP814 Whole House Water Filter

    AP814 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 4 1/2 filter cartridges Learn More
    $31.99 Retail Price:  $33.34
  24. 3M Aqua-Pure AP814-2 Whole House Water Filter

    AP814-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $57.99 Retail Price:  $65.54
  25. 3M Aqua-Pure AP817-2 Whole House Water Filter Cartridge

    AP817-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $88.99 Retail Price:  $112.69

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