Call Toll-Free: 1-800-277-3458

My Cart:

0 item(s)

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.

Items 1 to 25 of 91 total

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

Grid  List 

Set Descending Direction
  1. SDC-45-1020 Hydronix Comparable Sediment Water Filter by Tier1

    SDC-45-1020 Hydronix Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 10 x 4.5-inch filters Learn More
    $14.99 Retail Price:  $16.99
  2. S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  3. W20CLA American Plumber Comparable Whole House Water Filter by Tier1

    W20CLA American Plumber Comparable Whole House Water Filter by Tier1

    Standard 10 inch by 2.5 inch size fits many standard size filter housings Learn More
    $7.99 Retail Price:  $10.99
  4. RS1SS OmniFilter Comparable Whole House Water Filter by Tier1

    RS1SS OmniFilter Comparable Whole House Water Filter by Tier1

    Fits OmniFilter RS1-SS and GE FXWPC Learn More
    $6.99 Retail Price:  $10.99
  5. S1-20BB Pentek Comparable Whole House Water Filter by Tier1

    S1-20BB Pentek Comparable Whole House Water Filter by Tier1

    Fits PENTEK S1-20BB, American Plumber W20CLHD20 and 155305 Learn More
    $17.99 Retail Price:  $26.99
  6. S1 Pentek Comparable Whole House Water Filter by Tier1

    S1 Pentek Comparable Whole House Water Filter by Tier1

    Fits PENTEK-S1 and GE FXWPC Learn More
    $7.99 Retail Price:  $8.99
  7. AP-GRMB-20PP-20UB Whole House Water Filter Replacement Cartridge

    3M Aqua-Pure AP-GRMB-20PP-20 Whole House Water Filter Replacement

    Fits most standard 20 inch x 2 1/2 inch housings Learn More
    $11.99 Retail Price:  $14.34
  8. AP-GRMB-20PP-10UB Whole House Water Filter Cartridge by 3M Aqua-Pure

    AP-GRMB-20PP-10UB Whole House Replacement Filter by 3M Aqua-Pure

    Fits most standard 10-inch x 2.5-inch housings Learn More
    $7.99 Retail Price:  $10.34
  9. WFDW120009W DuPont Universal Drinking Water Filter System

    WFDW120009W DuPont Universal Drinking Water Filter System

    Fits DuPont WFDW 2000 series, 4000 series, 7000 series Learn More
    $39.99 Retail Price:  $52.91
  10. WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System

    WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System

    Fits standard 10 inch by 4.5 inch filter cartridges Learn More
    $62.99 Retail Price:  $79.96
  11. WFDWC20001 DuPont Universal Drinking Water Carbon Block Cartridge

    WFDWC20001 DuPont Universal Drinking Water Carbon Block Cartridge

    Fits WFDW120009W DuPont Universal Drinking Water Filter System and other brands of 10-inch standard-size filter systems Learn More
    $14.99 Retail Price:  $22.33
  12. WFHDC3001 DuPont Universal Heavy Duty Pleated Poly Whole House Cartridge

    WFHDC3001 DuPont Universal Heavy Duty Pleated Poly Whole House Cartridge

    Fits WFHD13001B Universal Heavy Duty Whole House Filtration System and other brands of 10x4.5-inch filter systems Learn More
    $17.99 Retail Price:  $27.04
  13. WFPFC3002 DuPont Universal Whole House Pleated Poly Filter Cartridge (2-Pack)

    WFPFC3002 DuPont Universal Whole House Pleated Poly Filter Cartridge (2-Pack)

    Fits DuPont Whole House Filter Systems and most other brands of 10 x 2.5-inch systems Learn More
    $13.99 Retail Price:  $21.16
  14. WB-20-W Harmsco Pleated Commercial Water Filter Cartridge

    WB-20-W Harmsco Pleated Commercial Water Filter Cartridge

    Fits most standard 10-inch x 2.5-inch housings Learn More
    $10.99 Retail Price:  $14.99
  15. 255541-43 Pentek Inline Water Filter Replacement
  16. WSQC-2 WaterSentinel Reverse Osmosis Carbon GAC Filter Cartridge
  17. 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
  18. SDC-45-1020 Hydronix Whole House Sediment Filter Cartridge (6-Pack)

    SDC-45-1020 Hydronix Whole House Replacement Sediment Filter Cartridge (6-Pack)

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

    $59.99

  19. SDC-45-2020 Hydronix Sediment Water Filter 6-Pack
  20. SPC-25-1020 Hydronix Pleated Sediment Water Filter (6-Pack)

    SPC-25-1020 Hydronix Pleated Sediment Water Filter (6-Pack)

    Fits into filtration systems that use Liquatec SPF-25-1020, Pentek 255483-43 and Watts FM-20-975 water filters Learn More

    $32.99

  21. SPC-45-1020 Hydronix 10 x 4.5 inch Pleated Sediment Water Filter 6pk

    SPC-45-1020 Hydronix 10 x 4.5 inch Pleated Sediment Water Filter 20 Micron (6-Pack)

    Fits into systems that use the Liquatec SPF-45-1020, Pentek 255491-43 and Watts FM-BB-10-20 water filters Learn More

    $64.99

  22. SPC-45-2020 Hydronix 20 x 4.5 inch Pleated Sediment Water Filter 6pk

    SPC-45-2020 Hydronix 20 x 4.5 inch Pleated Sediment Water Filter 20 Micron (6-Pack)

    Fits into systems that use the Liquatec SPF-45-2020, Pentek 255495-43 and Watts FM-BB-20-20 water filters Learn More

    $114.99

  23. 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

  24. 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

  25. 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

Items 1 to 25 of 91 total

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

Grid  List 

Set Descending Direction
Scroll To Top