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 70 total

Page:
  1. 1
  2. 2
  3. 3

Grid  List 

Set Ascending Direction
  1. 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
  2. 3M Aqua-Pure AP814 Whole House Water Filter

    AP814 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 4 1/2 filter cartridges Learn More
    $30.99 MSRP:  $33.34
  3. 3M Aqua-Pure AP814-2 Whole House Water Filter

    AP814-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
    $55.99 MSRP:  $65.54
  4. 3WH-HDPL-F01 Filtrete Replacement Filter Cartridge
  5. 3WH-HD-S01 Filtrete Whole House Sump System
  6. HB-20-50W Harmsco Calypso Blue Replacement Filter Cartridge

    HB-20-50W Harmsco Calypso Blue Replacement Filter Cartridge

    Fits any industry standard housing that accepts 4.5-inch by 20-inch replacement filters. Learn More
    $38.99 MSRP:  $49.99
  7. 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
  8. PD-50-20 Pentek Whole House Replacement Sediment Filter Cartridge

    PD-50-20 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $9.99 MSRP:  $12.98
  9. WPX50BB97P Pentek Replacement Filter Cartridge

    WPX50BB97P Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
    $19.99 MSRP:  $24.14
  10. PX50-9-78 Purtrex Replacement Filter Cartridge

    PX50-9-78 Purtrex Replacement Water Filter

    Fits industry standard compact filtration system housings that use 2.5-inch x 10-inch replacement filters Learn More
    $5.09 MSRP:  $10.99
  11. GX50-20 Hytrex Replacement Filter Cartridge

    GX50-20 Hytrex Water Filter Cartridge

    Fits industry standard water filtration system housings that use 2.5-inch x 20-inch filters Learn More
    $7.99 MSRP:  $11.49
  12. ECP50-20 Pentek Replacement Filter Cartridge

    ECP50-20 Pentek Replacement Filter Cartridge

    Fits most housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $14.99 MSRP:  $17.70
  13. SWC-45-2050 Hydronix String Wound Sediment Water Filter

    SWC-45-2050 Hydronix String-Wound Sediment Water Filter

    20 inches by 4.5 inches, 50 micron. Fits into 20 inch Big Blue Housings that use Liquatec SWF-45-2050 and Watts SF50-20-425 water filters Learn More
    $25.99 MSRP:  $30.81
  14. SDC-25-2050 Hydronix Sediment Water Filter Cartridge

    SDC-25-2050 Hydronix Sediment Water Filter Cartridge

    50 micron filter, sized 2.5x20 inches Learn More
    $8.99 MSRP:  $11.34
  15. P50-20 Tier1 Polypropylene Sediment Water Filter Cartridge

    P50-20 Tier1 Polypropylene Sediment Water Filter Cartridge

    Fits standard 20 inch x 2.5 inch filter housings Learn More
    $5.99 MSRP:  $11.99
  16. 3M Aqua-Pure AP124-2C Water Filter

    AP124-2C 3M Aqua-Pure Water Filter

    Fits most standard 20 inch water filtration system housings Learn More
    $26.99 MSRP:  $38.99
  17. R50-BB Pentek Whole House Water Filter

    R50-BB Pentek Whole House Filter Replacement Cartridge

    Fits Pentek Big Blue and any standard heavy duty housing that uses 9 3/4-inch x 4 1/2-inch replacement filter cartridges Learn More

    As Low As $11.40 Per Filter

  18. R50 Pentek Whole House Filter Replacement Cartridge

    R50 Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $7.20 Per Filter

  19. SPC-45-1050 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SPC-45-1050 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More

    As Low As $0.00 Per Filter

  20. W50PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W50PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $16.99 MSRP:  $18.39
  21. W50W American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W50W American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $13.99 MSRP:  $17.34
  22. 3M Aqua-Pure AP124 Whole House Water Filter Cartridge

    AP124 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $12.99 MSRP:  $17.24
  23. 3M Aqua-Pure AP124-3 Water Filter

    AP124-3 3M Aqua-Pure Replacement Water Filter

    Fits standard filtration system housings that accept 30-inch x 2.5-inch water filter cartridges Learn More
    $29.99 MSRP:  $35.64
  24. PR-1 Culligan Pitcher Replacement Cartridge

    PR-1 Culligan Water Filter Pitcher Replacement Cartridge

    Fits Culligan PIT-1, OP-1, GP-1, WP-1, WFR1 and WFJ2 water filter pitchers Learn More
    $6.99 MSRP:  $12.52
  25. PR-3U Culligan Universal Water Pitcher Replacement Cartridge (3-Pack)

    PR-3U Culligan Universal Water Pitcher Replacement Cartridge (3-Pack)

    Fits Culligan PIT-1, OP-1, GP-1, WP-1, and most Brita and PUR brand pitchers Learn More
    $23.79 MSRP:  $33.99

Items 1 to 25 of 70 total

Page:
  1. 1
  2. 2
  3. 3

Grid  List 

Set Ascending Direction
Scroll To Top