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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. DGD-2501 Pentek Comparable Whole House Sediment Water Filter by Tier1

    DGD-2501 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most 10 x 4.5-inch filter housings Learn More
    $13.99 Retail Price:  $16.99
  2. TIER1-DGD1-20BB Whole House Sediment Water Filter

    DGD-2501-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 20 x 5-inch housings Learn More
    $21.99 Retail Price:  $24.34
  3. DGD-2501 Pentek Comparable Whole House Sediment Water Filter by Tier1 (6-Pack)
  4. Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge (6-Pack)

    SDC-45-2001 Hydronix Whole House Replacement Sediment Filter Cartridge (6-Pack)

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

    $112.99

  5. SWC-45-1001 Hydronix String-Wound Sediment Water Filter (20-Pack)

    SWC-45-1001 Hydronix String-Wound Sediment Water Filter (20-Pack)

    Fits most 10-inch Big Blue filter housings and replaces Liquatec SWF-45-1001, Pentek 355213-43 and Watts SF1-10-425 water filters. Learn More

    $215.99

  6. Hydronix SDC-25-3001 Polypropylene Sediment Filter

    Hydronix SDC-25-3001 Polypropylene Sediment Filter

    Standard 30 inch by 2.5 inch size fits many standard size filter housings Learn More
    $11.99
  7. SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
    $14.99 Retail Price:  $17.34
  8. SDC-45-2001 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-45-2001 Hydronix Whole House Replacement Sediment Filter Cartridge

    Fits most Big Blue housings that accept 20-inch x 4.5-inch water filter cartridges Learn More
    $21.99
  9. WP1BB97P Pentek Replacement Filter Cartridge

    WP1BB97P Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
    $18.99
  10. SPC-45-1001 Hydronix Pleated Sediment Water Filter

    SPC-45-1001 Hydronix Pleated Sediment Water Filter

    9 7/8 inches by 4.5 inches. Fits filtration systems that use Liquatec SPF-45-1001, Pentek 255489-43 and Watts FM-BB-10-1 water filters Learn More
    $17.99 Retail Price:  $19.54
  11. SWC-45-2001 Hydronix String Wound Sediment Water Filter

    SWC-45-2001 Hydronix String-Wound Sediment Water Filter

    20 inches by 4.5 inches, 1 micron. Fits into Big Blue water filtration housings systems that use Liquatec SWF-45-2001, Pentek: 355222-43 and Watts SF1-20-425 water filters Learn More
    $24.99 Retail Price:  $27.59
  12. SPC-25-2001 Hydronix Pleated Sediment Water Filter

    SPC-25-2001 Hydronix Pleated Sediment Water Filter

    20 inches by 2.5 inches, 1 micron. Built to replace Liquatec SPF-25-2001, Pentek 255485-43 and Watts FM-1-20 water filters Learn More
    $12.99 Retail Price:  $16.09
  13. SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    10 inches by 4.5 inches, 1 micron. Fits most 10-inch Big Blue filter housings and replaces Liquatec SWF-45-1001, Pentek 355213-43 and Watts SF1-10-425 water filters. Learn More
    $16.99 Retail Price:  $18.39
  14. SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    2.5 inches by 20 inches, fits systems that use Liquatec SDF-25-2001, Pentek 155304-43, Pentek P1-20 and Watts FPMB1-20 water filters Learn More
    $7.99 Retail Price:  $8.04
  15. CB-25-1001 Hydronix Carbon Water Filter

    CB-25-1001 Hydronix Carbon Water Filter

    Sized 9-7/8 x 2.75 inches, 1 micron. Fits water filtration systems that use Liquatec CB-250-975-01, Pentek CB1-10 and Pentek 255382-43 filters Learn More
    $9.99 Retail Price:  $13.79
  16. SPC-45-2001 Hydronix Pleated Sediment Water Filter

    SPC-45-2001 Hydronix Pleated Sediment Water Filter

    Fits water filtration systems that use the Liquatec SPF-45-2001, Pentek 255493-43 and Watts FM-BB-20-1 filters Learn More
    $26.99 Retail Price:  $34.49
  17. CB-25-2001 Hydronix Carbon Water Filter Replacement

    CB-25-2001 Hydronix Carbon Water Filter Replacement

    Sized at 20 x 2.5 inches. 1 micron. Learn More

    Regular Price: $17.99

    Special Price: $16.05

  18. SBC-25-1001 Hydronix Sediment Water Filter Cartridge

    SBC-25-1001 Hydronix Sediment Water Filter Cartridge

    1 micron filter, sized 10 x 2.5 inches Learn More
  19. SDC-25-0501 Hydronix Sediment Water Filter Cartridge

    SDC-25-0501 Hydronix Sediment Water Filter Cartridge

    1 micron filter, sized 5 x 2.5 inches Learn More
    $6.99 Retail Price:  $9.34
  20. SDC-25-1001 Hydronix Sediment Water Filter Cartridge

    SDC-25-1001 Hydronix Sediment Water Filter Cartridge

    1 micron filter, sized 2 1/2 x 9 7/8 inches Learn More
    $7.99
  21. SPC-25-1001 Hydronix Pleated Sediment Water Filter

    SPC-25-1001 Hydronix Pleated Sediment Water Filter

    1 micron filter, sized 9 7/8x2.5 inches Learn More
    $7.99 Retail Price:  $8.04
  22. SWC-25-1001 Hydronix String Wound Sediment Water Filter

    SWC-25-1001 Hydronix String Wound Sediment Water Filter

    1 micron filter, sized 10 x 2.5 inches Learn More
    $8.99
  23. P1-5 Tier1 Sediment Filter Cartridge

    P1-5 Tier1 Sediment Filter Cartridge

    Sized 4 7/8 x 2 1/2 inches Learn More

    Regular Price: $5.99

    Special Price: $2.05

  24. SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    Sized 2.5 by 40 inches Learn More
    $12.99 Retail Price:  $16.09
  25. SPC-25-1001 Hydronix Pleated Sediment Filter 6-Pack

    SPC-25-1001 Hydronix Pleated Sediment Water Filter (6-Pack)

    1-micron filter, sized 9 7/8 x 2.5 inches Learn More

    $36.99

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