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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Items 51 to 75 of 111 total

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  1. SPC-45-2005 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SPC-45-2005 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits most 20 x 5-inch filter housings Learn More

    As Low As $0.00 Per Filter

  2. SPC-45-2010 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SPC-45-2010 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits most 20 x 5-inch filter housings Learn More

    As Low As $0.00 Per Filter

  3. HB-20-50W Harmsco Comparable Whole House Sediment Water Filter by Tier1

    HB-20-50W Harmsco Comparable Whole House Sediment Water Filter by Tier1

    Fits many styles of water filter housings that accept 20 x 5-inch filters Learn More

    As Low As $0.00 Per Filter

  4. SPC-45-2030 Pentek Comparable Whole House Sediment Water Filter by Tier1

    SPC-45-2030 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits many styles of water filter housings that accept 20 x 5-inch filters Learn More

    As Low As $0.00 Per Filter

  5. SPC-45-2050 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SPC-45-2050 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits many styles of water filter housings that accept 20 x 5-inch filters Learn More

    As Low As $17.83 Per Filter

  6. 22010 Hydrologic Comparable Whole House Water Filter by Tier1

    22010 Hydrologic Comparable Whole House Water Filter by Tier1

    Fits PENTEK S1-20BB, American Plumber W20CLHD20 and 155305 Learn More

    As Low As $0.00 Per Filter

  7. WRC25HD20 American Plumber Comparable Granular Activated Carbon Filter by Tier1

    WRC25HD20 American Plumber Comparable Granular Activated Carbon Filter by Tier1

    The WRC25HD20 American Plumber comparable replacement granular activated carbon filter by Tier1, is universal for a variety of water filter housings sized 20x4.5 inches. Learn More

    As Low As $0.00 Per Filter

  8. GAC20-BB Pentek Comparable Granular Activated Carbon Filter by Tier1

    GAC20-BB Pentek Comparable Granular Activated Carbon Filter by Tier1

    The GAC-20BB Pentek comparable replacement granular activated carbon filter by Tier1, is universal for a variety of water filter housings sized 20x4.5 inches. Learn More

    As Low As $0.00 Per Filter

  9. AP817-2 Aquapure Comparable Granular Activated Carbon Filter by Tier1

    AP817-2 Aquapure Comparable Granular Activated Carbon Filter by Tier1

    The AP817-2 Aquapure comparable replacement granular activated carbon filter by Tier1, is universal for a variety of water filter housings sized 20x4.5 inches. Learn More

    As Low As $0.00 Per Filter

  10. RFC20-BB Pentek Comparable Granular Activated Carbon Filter by Tier1

    RFC20-BB Pentek Comparable Granular Activated Carbon Filter by Tier1

    The RFC20-BB Pentek comparable replacement granular activated carbon filter by Tier1, is universal for a variety of water filter housings sized 20x4.5 inches. Learn More

    As Low As $0.00 Per Filter

  11. FXB20RFL Filtrex Comparable Granular Activated Carbon Filter by Tier1

    FXB20RFL Filtrex Comparable Granular Activated Carbon Filter by Tier1

    The FXB20RFL Filtrex comparable replacement granular activated carbon filter by Tier1, is universal for a variety of water filter housings sized 20x4.5 inches. Learn More

    As Low As $0.00 Per Filter

  12. EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

    EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

    Fits most standard 20 x 4.5-inch housings Learn More

    As Low As $0.00 Per Filter

  13. ECP20-20BB Pentek Comparable Whole House Water Filter by Tier1

    ECP20-20BB Pentek Comparable Whole House Water Filter by Tier1

    Fits PENTEK S1-20BB, American Plumber W20CLHD20 and 155305 Learn More

    As Low As $0.00 Per Filter

  14. S1-20BB-Pentek Comparable Whole House Water Filter by Tier1

    S1-20BB-Pentek Comparable Whole House Water Filter by Tier1

    Fits PENTEK S1-20BB, American Plumber W20CLHD20 and 155305 Learn More

    As Low As $0.00 Per Filter

  15. SPC-25-2030 Hydronix Comparable Sediment Water Filter by Tier1

    SPC-25-2030 Hydronix Comparable Sediment Water Filter by Tier1

    30 micron filter, sized 20 x 2.5 inches Learn More

    As Low As $0.00 Per Filter

    Out of stock

  16. 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
    $28.99 MSRP:  $35.64
  17. 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
  18. 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
    $52.99 MSRP:  $84.20
  19. 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
    $58.99 MSRP:  $66.69
  20. 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
    $55.99 MSRP:  $65.54
  21. 3M Aqua-Pure AP815-2 Whole House Water Filter

    AP815-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
  22. 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
    $85.99 MSRP:  $112.69
  23. P1012581 Culligan Undersink Replacement Filter Cartridge

    P1012581 Culligan Undersink Replacement Filter Cartridge

    Fits the Culligan 201 Under Sink Water Filter System Learn More
  24. CFS22 Cuno Whole House Filter Housing

    CFS22 Cuno Whole House Filter Housing

    $128.99 MSRP:  $148.34
  25. HB-20-1W Harmsco Calypso Blue Replacement Filter Cartridge

    HB-20-1W Harmsco Calypso Blue Replacement Filter Cartridge

    Fits any industry standard housing that accepts 4.5-inch by 20-inch replacement filters. Learn More
    $35.99 MSRP:  $39.20

Items 51 to 75 of 111 total

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