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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
    $4.99
  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
    $8.99 Retail Price:  $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
    $9.99 Retail Price:  $12.34
  4. CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1
  5. CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1

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

    Fits most standard 10 x 2.5-inch housings Learn More
    $5.99 Retail Price:  $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
    $5.99 Retail Price:  $9.99
  7. S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  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 Retail Price:  $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
    $27.99 Retail Price:  $37.99
  10. DGD-7525-20 Pentek Whole House Replacement Sediment Filter (6-Pack)

    DGD-7525-20 Pentek Whole House Replacement Sediment Filter Cartridge (6-Pack)

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

    $122.99

  11. ECP1-10 Pentek Replacement Filter Cartridge (30-Pack)

    ECP1-10 Pentek Replacement Filter Cartridge (30-Pack)

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

    $209.99

  12. ECP1-20BB Pentek Replacement Filter Cartridge (6-Pack)

    ECP1-20BB Pentek Replacement Filter Cartridge (6-Pack)

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

    $142.99

  13. ECP1-BB Pentek Replacement Filter Cartridge (12-Pack)

    ECP20-BB Pentek Replacement Filter Cartridge (12-Pack)

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

    $163.99

  14. ECP20-10 Pentek Replacement Filter Cartridge (30-Pack)

    ECP20-10 Pentek Replacement Filter Cartridge (30-Pack)

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

    $188.99

  15. ECP20-20 Pentek Replacement Filter Cartridge (20-Pack)

    ECP20-20 Pentek Replacement Filter Cartridge (20-Pack)

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

    $224.99

  16. ECP20-20 Pentek Replacement Filter Cartridge (6-Pack)

    ECP20-20 Pentek Replacement Filter Cartridge (6-Pack)

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

    $76.99

  17. ECP20-20BB Pentek Replacement Filter Cartridge (6-Pack)

    ECP20-20BB Pentek Replacement Filter Cartridge (6-Pack)

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

    $132.99

  18. ECP20-BB Pentek Replacement Filter Cartridge (12-Pack)

    ECP20-BB Pentek Replacement Filter Cartridge (12-Pack)

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

    $165.99

  19. ECP20-BB Pentek Replacement Filter Cartridge (20-Pack)

    ECP20-BB Pentek Replacement Filter Cartridge (20-Pack)

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

    $254.99

  20. ECP20-BB Pentek Replacement Filter Cartridge (6-Pack)

    ECP20-BB Pentek Replacement Filter Cartridge (6-Pack)

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

    $86.99

  21. ECP5-20 Pentek Replacement Filter Cartridge (20-Pack)

    ECP5-20 Pentek Replacement Filter Cartridge (20-Pack)

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

    $224.99

  22. ECP5-20 Pentek Replacement Filter Cartridge (6-Pack)

    ECP5-20 Pentek Replacement Filter Cartridge (6-Pack)

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

    $76.99

  23. 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 $20.50 Per Filter

  24. 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

  25. 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 $23.83 Per Filter

Items 1 to 25 of 127 total

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