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. P1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    P1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits in housings that accept 20 x 4 1/2 inch replacement filters Learn More
    $21.99
  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
    $18.99 MSRP:  $24.99
  3. Hydronix SDC-45-2001 Whole House 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

    As Low As $23.50 Per Filter

  4. SPC-25-1001 Hydronix Pleated Sediment Filter

    SPC-25-1001 Hydronix Pleated Sediment Water Filter

    1 micron filter, sized 9 7/8x2.5 inches Learn More

    As Low As $6.00 Per Filter

  5. DGD-2501 Pentek Comparable Whole House Filter by Tier1

    DGD-2501 Tier1 Pentek Comparable Whole House Sediment Water Filter

    Fits most 10 x 4.5-inch filter housings Learn More

    As Low As $8.08 Per Filter

  6. P1-20BB Sediment Water Filter by Tier1

    P1-20BB Sediment Water Filter by Tier1

    Fits in standard 20 x 4-1/2 inch sized housings Learn More

    As Low As $14.94 Per Filter

  7. SDC-25-0501 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SDC-25-0501 Hydronix Comparable Whole House Sediment Water Filter by Tier1

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

    As Low As $0.00 Per Filter

  8. SPC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SPC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  9. SDC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SDC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits most 10 x 4.5-inch filter housings Learn More

    As Low As $0.00 Per Filter

  10. RS16 Omnifilter Comparable Whole House Sediment Water Filter by Tier1

    RS16 Omnifilter Comparable Whole House Sediment Water Filter by Tier1

    Fits most 10 x 4.5-inch filter housings Learn More

    As Low As $0.00 Per Filter

  11. SWC-25-2001 Hydronix Comparable Whole House Sediment Water Filter by Tier 1

    SWC-25-2001 Hydronix Comparable Whole House Sediment Water Filter by Tier 1

    Fits standard filter housings using 20 x 2.5-inch filters Learn More

    As Low As $0.00 Per Filter

  12. SPC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SPC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    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
    $15.99 MSRP:  $27.99
  13. SWC-45-1001 Comparable Hydronix String-Wound Sediment Water Filter by Tier1

    SWC-45-1001 Comparable Hydronix String-Wound Sediment Water Filter by Tier1

    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
    $12.99 MSRP:  $24.99
  14. SPC-25-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    SPC-25-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    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 MSRP:  $25.99
  15. SPC-45-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    SPC-45-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    Fits water filtration systems that use the Liquatec SPF-45-2001, Pentek 255493-43 and Watts FM-BB-20-1 filters Learn More
    $24.99 MSRP:  $38.99
  16. 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

    As Low As $0.00 Per Filter

  17. SWC-45-1001 Comparable Hydronix String-Wound Sediment Water Filter by Tier1

    SWC-45-1001 Comparable Hydronix String-Wound Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  18. SWC-45-1005 Hydronix Comparable String-Wound Sediment Water Filter by Tier1

    SWC-45-1005 Hydronix Comparable String-Wound Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  19. SWC-45-1010 Hydronix Comparable String-Wound Sediment Water Filter by Tier1

    SWC-45-1010 Hydronix Comparable String-Wound Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  20. WP10BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1

    WP10BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  21. WP5BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1

    WP5BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  22. WPX10BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1

    WPX10BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  23. WPX5BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1

    WPX5BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  24. SPC-25-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    SPC-25-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  25. SPC-45-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    SPC-45-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    Fits water filtration systems that use the Liquatec SPF-45-2001, Pentek 255493-43 and Watts FM-BB-20-1 filters Learn More

    As Low As $0.00 Per Filter

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