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. 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
    $19.99 MSRP:  $28.99
  2. CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1

    CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
    $4.99 MSRP:  $9.99
  3. R50-BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    R50-BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More
    $13.99 MSRP:  $17.34
  4. W50PEHD American Plumber Comparable Whole House Water Filter by Tier1

    W50PEHD American Plumber Comparable Whole House Water Filter by Tier1

    Fits most 10 x 4.5 inch filter housings Learn More
    $16.99 MSRP:  $22.99

    Out of stock

  5. AP-GRMB-50PP-20UB Whole House Water Filter Replacement Cartridge

    3M Aqua-Pure AP-GRMB-50PP-20UB Whole House Water Filter Replacement

    Fits most standard 20 inch x 2 1/2 inch housings Learn More
    $11.99 MSRP:  $14.34
  6.  WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge

    WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge

    Fits most standard 20 x 4.5-inch filter housings Learn More
    $29.59 MSRP:  $39.99
  7. W50PEHD American Plumber Comparable Filter by Tier1 (6-Pack)
  8. Culligan R50_BBSA_D Sediment Whole House 6-Pack Water Filters

    Culligan R50_BBSA_D Sediment Whole House 6-Pack Water Filters

    Fits into the Culligan HD-950 whole house water filtration system and any other brand of filtration systems that uses standard 9 3/4 x 4 1/2 filter cartridges Learn More

    $99.99

  9. SDC-45-1050 Hydronix Pleated Water Filter

    SPC-45-1050 Hydronix Polypropylene Spun Water Filter

    9 7/8 inches by 4.5 inches, 50 micron, fits systems that use American Plumber WW50PEHD, Liquatec SPF-45-1050, Pentek 255492-43, Pentek 155053-43, Pentek R50-BB and Watts FM-BB-10-50 water filters Learn More

    As Low As $11.66 Per Filter

  10. SPC-45-2050 Hydronix Pleated Sediment Water Filter

    SPC-45-2050 Hydronix Pleated Sediment Water Filter (20 in x 4.5 in, 50 Micron)

    Fits into systems that use the Liquatec SPF-45-2050, Pentek 255496-43 and Watts FM-BB-50-20 water filters Learn More

    As Low As $21.67 Per Filter

  11. Pentek ECP50-20BB Replacement Water Filter Cartridge

    ECP50-20BB Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    As Low As $22.67 Per Filter

  12. Pentek ECP50-BB Whole House Water Filter Replacement Cartridge

    Pentek ECP50-BB Pleated Sediment Water Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 4 1/2-inch replacement filter cartridges Learn More

    As Low As $19.66 Per Filter

  13. W50PEHD American Plumber Comparable Whole House Water Filter by Tier1
  14. AQUA-PURE-AP124-2C Polypropylene Sediment Water Filter by Tier1

    AQUA-PURE-AP124-2C Polypropylene Sediment Water Filter by Tier1

    Fits standard 20 inch x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  15. AP-GRMB-50PP-20UB 3M Aqua-Pure Comparable Whole House Sediment Filter by Tier1

    AP-GRMB-50PP-20UB 3M Aqua-Pure Comparable Whole House Sediment Filter by Tier1

    Fits standard 20 inch x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  16. SDC-25-2050 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SDC-25-2050 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits standard 20 inch x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  17. GX50-20 Hytrex Comparable Whole House Sediment Water Filter by Tier1

    GX50-20 Hytrex Comparable Whole House Sediment Water Filter by Tier1

    Fits standard 20 inch x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  18. PD-50-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    PD-50-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits standard 20 inch x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  19. PX75-20 Purtrex Comparable Whole House Sediment Water Filter by Tier1

    PX75-20 Purtrex Comparable Whole House Sediment Water Filter by Tier1

    Fits standard 20 inch x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  20. R50-BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    R50-BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More

    As Low As $10.40 Per Filter

  21. ECP50-20BB Pentek Comparable Replacement Filter Cartridge by Tier1

    ECP50-20BB Pentek Comparable Replacement Filter Cartridge by Tier1

    Fits most Big Blue housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    As Low As $37.99 Per Filter

  22. Hydronix SDC-25-4050 Polypropylene Sediment Filter

    Hydronix SDC-25-4050 Polypropylene Sediment Filter

    Standard 50 inch by 2.5 inch size fits many standard size filter housings Learn More
    $12.99 MSRP:  $14.34
  23. Pentek BPHE-410-50 Polypropylene High Efficiency Filter Bag

    Pentek BPHE-410-50 Polypropylene High Efficiency Filter Bag

    Fits the Pentek PBH-410 series filter bag housing Learn More
    $5.09 MSRP:  $9.99
  24. Pentek PO50G3S Polypropylene Filter Bag

    Pentek PO50G3S Polypropylene Filter Bag

    Standard #3 size with 4 1/8 inch diameter and 8 inch length. Fits many standard filter bag housings Learn More
    $7.99
  25. 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

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