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.

18 Item(s)

Grid  List 

Set Descending Direction
  1. EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

    EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

    Fits most standard 20 x 4.5-inch housings Learn More
    $41.99 Retail Price:  $47.99
  2. APRC1-P AquaPatrol Ice Machine Replacement Water Filter

    APRC1-P AquaPatrol Ice Machine Replacement Water Filter

    Fits the Scotsman ADS-AP1 AquaPatrol Water Filtration System Learn More
    $61.99 Retail Price:  $94.99
  3. EP10-10 Tier1 Carbon Block Water Filter (6-Pack)

    EP10-10 Tier1 Carbon Block Water Filter (6-Pack)

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

    $45.99

  4. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    Fits most standard 10-inch housings Learn More

    $96.99

  5. Pentair HEPP10-40DB Pureflex High Efficiency

    Pentair HEPP10-40DB Pureflex High Efficiency

    Fits standard filter housings that accept 40 x 2.5-inch filters Learn More
    $93.99 Retail Price:  $113.99
  6. Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    Fits standard filter housings that accept 30 x 2.5-inch filters Learn More
    $107.99 Retail Price:  $130.99
  7. Pentair NEPP12-40DB Pureflex Pleated Polypropylene Cartridge

    Pentair NEPP12-40DB Pureflex Pleated Polypropylene Cartridge

    Fits standard filter housings that accept 40 x 2.5-inch filters Learn More
    $49.99 Retail Price:  $61.99
  8. SDC-45-1010 Hydronix Whole House Sediment Filter Cartridge (6-Pack)

    SDC-45-1010 Hydronix Whole House Replacement Sediment Filter Cartridge (6-Pack)

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

    $59.99

  9. SDC-45-2010 Hydronix Water Filter Cartridge 6-Pack

    SDC-45-2010 Hydronix Sediment Water Filter Cartridge (6-Pack)

    10-micron filter fits into water filtration systems that use 20-inch x 4.5-inch filter replacements Learn More

    $114.99

  10. SPC-45-1010 Hydronix Pleated Sediment Water Filter (6-Pack)

    SPC-45-1010 Hydronix Pleated Sediment Water Filter (6-Pack)

    Fits filter housings that accept standard 10 x 4.5 inch filter cartridges Learn More

    $66.99

  11. EPM-20BB Pentek Whole House Filter Cartridge

    EPM-20BB Pentek Whole House Filter Replacement Cartridge

    Fits Pentek 20-inch Big Blue and other heavy-duty filter housings Learn More

    As Low As $43.67 Per Filter

  12. Omnipure ELF-10M-P Carbon Block with Polyphosphate

    Omnipure ELF-10M-P Carbon Block with Polyphosphate

    Proprietary design fits Omnipure ELF and E series valve heads Learn More
    $47.99 Retail Price:  $50.34
  13. 22006 Hydrologic BigBoy Replacement Carbon Filter - Green

    22006 Hydrologic BigBoy Carbon Filter (Green)

    Regular Price: $80.99

    Special Price: $45.05

  14. KDF55-20 Tier1 Replacement Filter Cartridge

    KDF55-20 Tier1 Replacement Filter Cartridge

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

    Regular Price: $90.99

    Special Price: $55.05

  15. IF14C Ice-O-Matic Inline Water Filtration Cartridge

    IF14C Ice-O-Matic Inline Water Filter

    $90.99 Retail Price:  $97.74
  16. IF18C Ice-O-Matic Inline Water Filtration Cartridge - 1

    IF18C Ice-O-Matic Inline Water Filter Cartridge

    $99.99 Retail Price:  $117.29
  17. KDF85-10BB Tier1 Water Filter

    KDF85-10BB Tier1 Water Filter

    Sized at 10 x 4.5 inches, this filter will fit into all #10 Big Blue filtration system housings Learn More
    $83.99 Retail Price:  $86.24
  18. KDF85-20 Tier1 Water Filter

    KDF85-20 Tier1 Water Filter

    Sized at 20 x 2.5 inches, this filter will fit into all #20 Standard or Slimline water filtration system housings Learn More
    $105.99 Retail Price:  $121.89

18 Item(s)

Grid  List 

Set Descending Direction
Scroll To Top