Discount Water Filters and Air Filters at Discount Filter Store.com

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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.

Clear All
Compare

Items 1 to 25 of 391 total

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Grid  List 

Set Ascending Direction
  1. W9240002 Doulton Specialty Replacement 5 Micro Pre-Filter Cartridge

    W9240002 Doulton Specialty Replacement 5 Micro Pre-Filter Cartridge

    Fits pressurized Doulton HIP2 Duo and HIP3 Triple housing systems Learn More
    $20.00 MSRP:  $24.99
  2. 3M Aqua-Pure AP110-2 Whole House Water Filter Cartridge

    AP110-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $20.99 MSRP:  $24.94
  3. SDC-45-2050 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-45-2050 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
    $20.99 MSRP:  $27.59
  4. P1-30 Pentek Whole House Replacement Sediment Filter Cartridge

    P1-30 Pentek Whole House Sediment Water Filter

    Fits most water filtration system housings that accept standard 30-inch x 2.5-inch filter cartridges Learn More
    $20.99
  5. 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
    $20.99 MSRP:  $27.99
  6. WPX10BB97P Pentek Fibrillated Polypropylene Water Filter

    WPX10BB97P Pentek Fibrillated Polypropylene Water Filter

    10 inches by 4.5 inches, 10 micron, fits Culligan HD-950 and 10 inch Big Blue Whole House water filtration systems Learn More
    $20.99 MSRP:  $22.99
  7. PCC212 Pentek Replacement Filter Cartridge

    PCC212 Pentek Replacement Filter Cartridge

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

    As Low As $18.83 Per Filter

  8. SDC-45-2005 Hydronix Whole House Filter Replacement by Tier1
  9. SDC-45-2005 Hydronix Comparable Whole House Replacement Sediment Filter Cartridge by Tier1

    SDC-45-2005 Hydronix Comparable Whole House Replacement Sediment Filter Cartridge by Tier1

    Fits filtration system housings that accept 20 x 4.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  10. SDC-45-2010 Hydronix Comparable Sediment Water Filter Cartridge by Tier1

    SDC-45-2010 Hydronix Comparable Sediment Water Filter Cartridge by Tier1

    Fits filtration system housings that accept 20 x 4.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  11. HF-150 Culligan Whole House Filter System
  12. SPC-45-2005 Hydronix Whole House Replacement Sediment Filter Cartridge

    SPC-45-2005 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 MSRP:  $29.89
  13. PD-1-40 Pentek Whole House Replacement Sediment Filter Cartridge

    PD-1-40 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 40-inch x 2.5-inch water filter cartridges Learn More
    $21.99
  14. WPX5BB97P Pentek Whole House Filter Replacement Cartridge

    WPX5BB97P Pentek Whole House Filter Replacement Cartridge

    Fits Pentek Big Blue and other heavy-duty filter housings Learn More
    $21.99
  15. 154134 Pentek Water Filtration System Housing Cap – (Black, 0.75 Inch)

    154134 Pentek Water Filtration System Housing Cap – (Black, 0.75 Inch)

    3/4 inch outlet, fits #10 and #20 Standard Blue water filtration system housings Learn More
    $21.99 MSRP:  $27.59
  16. Pentek PD-1-30 Polypropylene Sediment Filter

    Pentek PD-1-30 Polypropylene Sediment Filter

    Standard 30 inch by 2.5 inch size and double open end design fits many common filter housings Learn More
    $21.99
  17. R30-BB Pentek Whole House Filter Cartridge

    R30-BB Pentek Whole House Water Filter Replacement Cartridge

    Fits the Pentek Big Blue or any other heavy duty water filtration system housing that uses 9 3/4-inch x 4 1/2-inch cartridges Learn More

    As Low As $14.30 Per Filter

  18. HB-10-5W Harmsco Calypso Blue Replacement Filter Cartridge

    HB-10-5W Harmsco Calypso Blue Replacement Filter Cartridge

    Fits any industry standard housing that accepts 4.5-inch by 10-inch replacement filters. Learn More
    $22.99 MSRP:  $24.14
  19. 153001 Pentek Filter Housing Sump - Blue

    153001 Pentek Filter Housing Sump - Blue

    Fits the cap of Pentek 153001, Culligan 153008, Culligan HF-150, and #10 blue (not clear) housings of any inlet/outlet size Learn More
    $22.99 MSRP:  $28.74
  20. SWC-45-20100 Hydronix String Wound Sediment Water Filter

    SWC-45-20100 Hydronix String-Wound Sediment Water Filter

    20 inches by 4.5 inches, 100 micron. Fits into Big Blue Water Filtration Housings Systems that use Liquatec SWF-45-20100 and Pentek 355226-43 water filters Learn More
    $22.99 MSRP:  $32.19
  21. CQE-RC-04033 Crystal Quest Reusable Pleated Water Filter

    CQE-RC-04033 Crystal Quest Reusable Pleated Water Filter

    Fits Crystal Quest countertop, undersink and refrigerator water filtration systems Learn More
    $23.50 MSRP:  $33.34
  22. W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge

    W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge

    Fits American Plumber W10-PR and W15-PR and most other heavy duty water filter housings Learn More
    $23.99 MSRP:  $27.34
  23. W50PEHD American Plumber Whole House Heavy Duty Filter Cartridge

    W50PEHD American Plumber Whole House Heavy Duty Filter Cartridge

    Fits American Plumber W10-PR and W15-PR and most other heavy duty water filter housings Learn More
    $23.99 MSRP:  $27.34
  24. SLIM-CLEAR-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  25. SPC-45-2010 Hydronix Pleated Sediment Water Filter Cartridge

    SPC-45-2010 Hydronix Pleated Sediment Water Filter Cartridge

    20 inches by 4.5 inches, 10 micron. Fits into systems that use the Liquatec SPF-45-2010 water filter Learn More
    $23.99 MSRP:  $32.19

Items 1 to 25 of 391 total

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Grid  List 

Set Ascending Direction
Scroll To Top