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 591 total

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

Grid  List 

Set Ascending Direction
  1. PX20-20 Purtrex Replacement Filter Cartridge

    PX20-20 Purtrex Replacement Water Filter

    For industry standard filtration system housings that use 2.5-inch x 20-inch replacement filters Learn More
    $10.99 MSRP:  $14.99
  2. PX75-20 Purtrex Replacement Filter Cartridge

    PX75-20 Purtrex Replacement Water Filter Cartridge

    Fits industry standard water filtration system housings that use 2.5-inch x 20-inch cartridges Learn More
    $10.99 MSRP:  $14.99
  3. SPC-25-2010 Hydronix Pleated Sediment Water Filter

    SPC-25-2010 Hydronix Pleated Sediment Water Filter

    10 micron filter, sized 20x2.5 inches Learn More
    $10.99 MSRP:  $12.64
  4. SWC-25-2001 Hydronix String Wound Sediment Water Filter (1 micron)
  5. AP-GRMB-01PP-20UB Whole House Replacement Water Filter by 3M Aqua-Pure

    AP-GRMB-01PP-20UB Whole House Replacement Water Filter by 3M Aqua-Pure

    Fits most standard 20-inch x 2.5-inch housings Learn More
    $10.99 MSRP:  $13.34
  6. 153017 Pentek Slim Line Filter Housing Sump - Blue

    153017 Pentek Slim Line Filter Housing Sump - Blue

    Fits the cap of SY-5197 10-inch Slim Line Housings, as well as other countertop and undersink systems Learn More
    $11.29 MSRP:  $15.28
  7. Pentek PD-10-20 Whole House Replacement Sediment Water Filter

    PD-10-20 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 20-inch x 2.5-inch water filter cartridges Learn More

    As Low As $9.75 Per Filter

  8. Pentek R30 Replacement Water Filter Cartridge

    Pentek R30 Sediment Water Filter Cartridge Replacement

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

    As Low As $8.27 Per Filter

  9. SDC-45-1005 Hydronix Whole House Filter Replacement by Tier1
  10. 4WH-HDGR-F01 Filtrete Comparable Whole House Sediment Water Filter by Tier1

    4WH-HDGR-F01 Filtrete 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

  11. SDC-45-1005 Hydronix Whole House Replacement Sediment Filter Cartridge Comparable by Tier1

    SDC-45-1005 Hydronix Whole House Replacement Sediment Filter Cartridge Comparable by Tier1

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

    As Low As $0.00 Per Filter

  12. SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing
  13. 158008 Pentek Slim Line Filter Housing - Clear

    158008 Pentek Slim Line Water Filter Housing - Clear

    Fits standard 3/8-inch water lines Learn More
    $12.79 MSRP:  $16.55
  14. SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  15. Pentek 158114 10-inch Standard Filter Housing

    Pentek 158114 10-inch Standard Filter Housing

    Receives any standard 10 inch by 2.5 inch filter cartridge Learn More
    $12.99 MSRP:  $15.34
  16. Pentek PD-25-20 Whole House Replacement Sediment Water Filter

    PD-25-20 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 20-inch x 2.5-inch water filter cartridges Learn More

    As Low As $11.16 Per Filter

  17. S1-20 Pentek Whole House Filter Replacement Cartridge

    S1-20 Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $10.50 Per Filter

  18. WP-5BB97P Pentek Comparable Replacement Filter Cartridge by Tier1

    WP-5BB97P Pentek Comparable Replacement Filter Cartridge by Tier1

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

    As Low As $11.00 Per Filter

  19. 153126 Pentek Filter Housing Sump - White

    153126 Pentek Filter Housing Sump - White

    Fits the cap of 10-inch Standard Culligan and Pentek system housings Learn More
    $13.39 MSRP:  $17.70
  20. SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
    $13.99 MSRP:  $17.34
  21. SDC-45-1005 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-45-1005 Hydronix Whole House Replacement Sediment Filter Cartridge

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
    $13.99 MSRP:  $17.34
  22. P5-30 Pentek Whole House Replacement Sediment Filter Cartridge

    P5-30 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most housings that accept standard 30-inch x 2.5-inch water filter cartridges Learn More
    $13.99 MSRP:  $14.13
  23. SWC-25-2030 Hydronix String Wound Sediment Water Filter (30 micron)

    SWC-25-2030 Hydronix String Wound Sediment Water Filter (30 micron)

    Fits into filtration system housing that accepts 20 x 2.5 inch water filters Learn More
    $13.99 MSRP:  $17.24
  24. 655130-43/DFX-CB-10 Pentek Diamond Polyspun Carbon Block Replacement

    655130-43/DFX-CB-10 Pentek Diamond Polyspun Carbon Block Replacement

    Fits housings that take filters sized 10 x 2-1/2 Learn More
    $13.99 MSRP:  $18.99
  25. Pentek ECP5-20 Replacement Water Filter Cartridge

    Pentek ECP5-20 Sediment Water Filter Cartridge Replacement

    Fits most housings that accept 20-inch x 2.5-inch water filter cartridges Learn More

    As Low As $10.50 Per Filter

Items 1 to 25 of 591 total

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

Grid  List 

Set Ascending Direction
Scroll To Top