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. 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1

    155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
  2. AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1

    AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
    $7.99 MSRP:  $14.99
  3. FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1

    FXUSC GE Comparable Whole House Sediment Water Filter by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More
    $8.99 MSRP:  $12.34
  4. CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1

    CW-F-D Culligan Comparable Whole House Sediment Water Filter by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More
    $9.99 MSRP:  $12.99
  5. CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1

    The CW-MF 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
  6. 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
  7. S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1

    S1A-D Culligan Comparable Whole House Sediment Water Filter by Tier1(2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More
    $5.99 MSRP:  $12.99
  8. WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge

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

    Fits most standard 20 x 4.5-inch filter housings Learn More
    $28.99 MSRP:  $37.99
  9.  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
  10. DGD-7525-20 Pentek Whole House Water Filter

    DGD-7525-20 Pentek Whole House Replacement Sediment Filter Cartridge

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

    As Low As $21.00 Per Filter

  11. Pentek ECP1-10 Replacement Water Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

    Fits most housings that accept 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $7.00 Per Filter

  12. Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB 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 $23.00 Per Filter

  13. Pentek ECP1-BB Replacement Water Filter Cartridge

    Pentek ECP1-BB Water Filter Cartridge Replacement

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $12.83 Per Filter

  14. Pentek ECP20-20 Replacement Water Filter Cartridge

    ECP20-20 Pentek Replacement Filter Cartridge

    Fits most housings that accept 20-inch x 2.5-inch water filter cartridges Learn More

    As Low As $11.60 Per Filter

  15. Pentek ECP20-20BB Replacement Water Filter Cartridge

    Pentek ECP20-20BB Pleated Sediment Water Filter Cartridge

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

    As Low As $21.33 Per Filter

  16. Pentek ECP20-BB Replacement Water Filter Cartridge

    ECP20-BB Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $11.39 Per Filter

  17. 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

  18. Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    Fits most housings that accept standard 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $7.80 Per Filter

  19. Pentek EP-20 Replacement Water Filter Cartridge

    Pentek EP-20 Water Filter Cartridge Replacements

    Fits most housings that accept standard 20-inch x 2.5-inch water filter cartridges Learn More

    As Low As $15.50 Per Filter

  20. EP-20BB Pentek Replacement Water Filter

    EP-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 $63.08 Per Filter

  21. EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $22.00 Per Filter

  22. Pentek EPM-BB Replacement Water Filter Cartridge

    Pentek EPM-BB Water Filter Cartridge Replacement

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $23.00 Per Filter

  23. Pentek WP5BB97P Replacement Water Filter Cartridge

    WP5BB97P Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $18.83 Per Filter

  24. Pentek WS-10 Water Softening Water Filter

    Pentek WS-10 Water Softening Filter

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $19.66 Per Filter

  25. EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    Fits filtration system housings that accepts 10 x 4.5 inch cartridges Learn More

    As Low As $15.60 Per Filter

Items 1 to 25 of 119 total

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