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 205 total

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

Grid  List 

Set Descending Direction
  1. 8017757 Katadyn MyBottle Ultralight Series 24-Ounce Personal Water Purifier Bottle - Green Deer
  2. 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
  3. SWC-45-2001 Hydronix String Wound Sediment Water Filter

    SWC-45-2001 Hydronix String-Wound Sediment Water Filter

    20 inches by 4.5 inches, 1 micron. Fits into Big Blue water filtration housings systems that use Liquatec SWF-45-2001, Pentek: 355222-43 and Watts SF1-20-425 water filters Learn More
    $27.99
  4. SPC-25-2001 Hydronix Pleated Sediment Water Filter

    SPC-25-2001 Hydronix Pleated Sediment Water Filter

    20 inches by 2.5 inches, 1 micron. Built to replace Liquatec SPF-25-2001, Pentek 255485-43 and Watts FM-1-20 water filters Learn More
    $18.99 MSRP:  $25.99
  5. SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    10 inches by 4.5 inches, 1 micron. Fits most 10-inch Big Blue filter housings and replaces Liquatec SWF-45-1001, Pentek 355213-43 and Watts SF1-10-425 water filters. Learn More
    $17.99 MSRP:  $18.39
  6. SPC-45-2001 Hydronix Pleated Sediment Water Filter

    SPC-45-2001 Hydronix Pleated Sediment Water Filter

    Fits water filtration systems that use the Liquatec SPF-45-2001, Pentek 255493-43 and Watts FM-BB-20-1 filters Learn More
    $29.99 MSRP:  $34.49
  7. WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter - Brushed Nickel
  8. WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter
  9. WFFMC103X DuPont Faucet Mount Replacement Cartridges - High Protection Filter (3-pack)
  10. WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  11. WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)
  12. WFDWC40001 DuPont Universal Drinking Water Carbon Block Cartridge

    WFDWC40001 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
  13. DUPONT-WFQTC90001

    DuPont WFQTC90001 Quick Twist 3rd Stage Replacement Filter

    Fits the Dupont-WFQT39000 Quick Twist Water Filter System Learn More
  14. DuPont WFFS150XCH Chrome Counter Top Faucet System
  15. Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge

    SDC-45-2001 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

    As Low As $23.50 Per Filter

  16. SPC-25-1001 Hydronix Pleated Sediment Filter

    SPC-25-1001 Hydronix Pleated Sediment Water Filter

    1 micron filter, sized 9 7/8x2.5 inches Learn More

    As Low As $6.00 Per Filter

  17. Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge

    Pentek ChlorPlus-10 Whole House Carbon Block Water 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 $18.00 Per Filter

  18. DGD-2501-20 Pentek Whole House Sediment Filter

    Pentek DGD-2501-20 Sediment Water Filter Cartridge Replacements

    Fits most housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    As Low As $21.67 Per Filter

  19. DGD-2501 Pentek Whole House Water Filter

    Pentek DGD-2501 Whole House Water Filter Replacement Cartridge

    Fits Pentek Big Blue and other heavy-duty filter housings Learn More

    As Low As $9.60 Per Filter

  20. Pentek ECP1-10 Replacement Water Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

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

    As Low As $7.00 Per Filter

  21. Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    As Low As $23.00 Per Filter

  22. Pentek ECP1-BB Replacement Water Filter Cartridge

    Pentek ECP1-BB Water Filter Cartridge Replacement

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

    As Low As $12.83 Per Filter

  23. Pentek P1-20 Whole House Water Filter Replacement Cartridge

    Pentek P1-20 Sediment 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 $9.75 Per Filter

  24. P1 Pentek 10 x 2.5-inch Whole House Sediment Water Filter Replacement

    P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More

    As Low As $2.39 Per Filter

  25. 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

Items 1 to 25 of 205 total

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

Grid  List 

Set Descending Direction
Scroll To Top