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 607 total

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

Grid  List 

Set Descending Direction
  1. CL6ROT33-A Omnipure GAC Inline Water Filter

    CL6ROT33-A Omnipure GAC Inline Water Filter

    Ideal for use in water coolers, drinking fountains, under sink systems, ice machines, and reverse osmosis systems Learn More
  2. Culligan Compatible RS-23-SED5 Reverse Osmosis Pre-Filter by Tier1
  3. W20CLA American Plumber Comparable Whole House Water Filter by Tier1

    W20CLA American Plumber Comparable Whole House Water Filter by Tier1 (2-Pack)

    Standard 10 inch by 2.5 inch size fits many standard size filter housings Learn More
    $10.99
  4. 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 MSRP:  $14.99
  5. DuPont WFPTC100X Water Pitcher Replacement Cartridge High Protection

    DuPont WFPTC100X Water Pitcher Replacement Cartridge High Protection

    Fits the DUPONT-WPT100XW, DUPONT-WFPT075X, DUPONT-WFPT200X DuPont Water Filter Pitchers Learn More
    $10.99 MSRP:  $15.99
  6. 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

  7. 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

  8. 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

  9. SWC-25-2005 Hydronix Comparable String Wound Sediment Water Filter (5 micron) by Tier1
  10. 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

  11. SWC-25-2005 Hydronix Comparable String Wound Sediment Water Filter (5 micron) by Tier1
  12. SWC-25-2010 Hydronix Comparable String Wound Sediment Water Filter (5 micron) by Tier1
  13. SB-3 Squeezable Filtered Sport Bottle (27 oz.)

    SB-3 WaterWay Squeezable Filtered Sport Bottle (27 oz.)

    Comes complete with filter Learn More
    $11.39 MSRP:  $28.99
  14. AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    For use with Viqua UltraViolet Disinfection Systems requiring 10 x 2.5-inch filter pre-treatment Learn More
    $11.39 MSRP:  $16.99
  15. P25-30 Comparable Polypropylene Sediment Filter by Tier1

    P25-30 Comparable Polypropylene Sediment Filter by Tier1

    Standard 30 inch by 2.5 inch size and double open end design fits many common filter housings. Also available in a variety of micron ratings and end cap styles. Learn More
    $11.49
  16. Hydronix SDC-25-4005 Polypropylene Sediment Filter

    Hydronix SDC-25-4005 Polypropylene Sediment Filter

    Standard 40 inch by 2.5 inch size fits many standard size filter housings Learn More
    $11.99 MSRP:  $13.56
  17. S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1

    S1A-D Culligan Comparable Whole House Sediment Water Filter by Tier1(2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More
    $11.99 MSRP:  $12.99
  18. EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    Fits standard 20 x 2.5-inch housings Learn More
    $11.99 MSRP:  $20.99
  19. AP-GRMB-05PP-20UB Whole House Replacement Filter by 3M Aqua-Pure

    3M Aqua-Pure AP-GRMB-05PP-20 Whole House Water Filter Replacement

    Fits most standard 20-inch x 2.5-inch housings Learn More
  20. AP-GRMB-10PP-20UB Whole House Replacement Cartridge by 3M Aqua-Pure

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

    Fits most standard 20-inch x 2.5-inch housings Learn More
    $11.99 MSRP:  $14.34
  21. AP-GRMB-50PP-20UB Whole House Water Filter Replacement Cartridge

    3M Aqua-Pure AP-GRMB-50PP-20UB Whole House Water Filter Replacement

    Fits most standard 20 inch x 2 1/2 inch housings Learn More
    $11.99 MSRP:  $14.34
  22. K2528-KK Omnipure GAC Inline Water Filter

    K2528-KK Omnipure GAC Inline Water Filter

    Fits standard 3/8-inch water lines Learn More
    $11.99 MSRP:  $17.99
  23. P5-10BB Tier1 Sediment Water Filter

    P5-10BB Tier1 Sediment Water Filter

    Fits filtration system housings that accept 10 x 4.5 inch cartridges Learn More

    As Low As $10.83 Per Filter

  24. P5-20 Tier1 Sediment Water Filter

    P5-20 Tier1 Whole House Sediment Water Filter

    Sized 20 x 2.5 inches Learn More

    As Low As $4.50 Per Filter

  25. SPC-25-2030 Hydronix Comparable Sediment Water Filter by Tier1

    SPC-25-2030 Hydronix Comparable Sediment Water Filter by Tier1

    30 micron filter, sized 20 x 2.5 inches Learn More
    $11.99 MSRP:  $23.99

Items 1 to 25 of 607 total

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

Grid  List 

Set Descending Direction
Scroll To Top