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 169 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. K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    Fits standard 1/4-inch water lines Learn More

    Regular Price: $21.99

    Special Price: $21.05

  3. PS1-20C Pentek Sediment Water Filter

    PS1-20C Pentek Sediment Water Filter

    Fits standard filter housings using 20 x 2.5-inch filters Learn More
    $8.99 Retail Price:  $13.55
  4. P1-20 Pentek Comparable Sediment Water Filter by Tier1

    P1-20 Pentek Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 20 x 2.5-inch filters Learn More
    $6.99 Retail Price:  $10.99
  5. WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter - Brushed Nickel

    WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter (Brushed Nickel)

    Fits most standard faucets Learn More
    $37.99 Retail Price:  $40.34
  6. WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter
  7. WFFMC103X DuPont Faucet Mount Replacement Cartridges - High Protection Filter (3-pack)
  8. WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  9. WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)

    WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)

    Fits all DuPont faucet mounts Learn More
    $36.99 Retail Price:  $39.34
  10. TIER1-DGD1-20BB Whole House Sediment Water Filter

    DGD-2501-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 20 x 5-inch housings Learn More
    $21.99 Retail Price:  $24.34
  11. 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
    $22.99 Retail Price:  $29.99
  12. CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    Fits most standard 10-inch x 2.5-inch housings Learn More
    $14.99 Retail Price:  $19.99
  13. DUPONT-WFQTC90001

    DuPont WFQTC90001 Quick Twist 3rd Stage Replacement Filter

    Fits the Dupont-WFQT39000 Quick Twist Water Filter System Learn More
    $61.99 Retail Price:  $84.99
  14. DuPont WFFS150XCH Chrome Counter Top Faucet System
  15. DGD-2501 Pentek Comparable Whole House Sediment Water Filter by Tier1 (6-Pack)
  16. P1 Pentek Comparable Whole House Sediment Filter by Tier1 (2-Pack)

    P1 Pentek Comparable Whole House Sediment Water Filter by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More

    $10.99

  17. P1 Pentek Comparable Whole House Sediment Filter by Tier1 (4-Pack)

    P1 Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More

    $19.99

  18. Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge (6-Pack)

    SDC-45-2001 Hydronix Whole House Replacement Sediment Filter Cartridge (6-Pack)

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

    $112.99

  19. SWC-45-1001 Hydronix String-Wound Sediment Water Filter (20-Pack)

    SWC-45-1001 Hydronix String-Wound Sediment Water Filter (20-Pack)

    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

    $215.99

  20. CHLORPLUS-10 Pentek Whole House Filter Replacement Cartridge (12-Pack)

    CHLORPLUS-10 Pentek Whole House Filter Replacement Cartridge (12-Pack)

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

    $215.99

  21. DGD-2501 Pentek Whole House Filter Replacement Cartridge (12-Pack)

    DGD-2501 Pentek Whole House Filter Replacement Cartridge (12-Pack)

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

    $153.99

  22. DGD-2501-20 Pentek Whole House Replacement Sediment Filter (6-Pack)

    DGD-2501-20 Pentek Whole House Replacement Sediment Filter Cartridge (6-Pack)

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

    $136.99

  23. DGD-2501 Pentek Whole House Filter Replacement Cartridge (20-Pack)

    DGD-2501 Pentek Whole House Filter Replacement Cartridge (20-Pack)

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

    $239.99

  24. DGD-2501 Pentek Whole House Filter Replacement Cartridge (6-Pack)

    DGD-2501 Pentek Whole House Filter Replacement Cartridge (6-Pack)

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

    $81.99

  25. ECP1-10 Pentek Replacement Filter Cartridge (30-Pack)

    ECP1-10 Pentek Replacement Filter Cartridge (30-Pack)

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

    $209.99

Items 1 to 25 of 169 total

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

Grid  List 

Set Descending Direction
Scroll To Top