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

39 Item(s)

Grid  List 

Set Descending Direction
  • FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    $11.99
    MSRP: $20.99
    Save 43%
  • DGD-2501-20 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • DGD-2501-20 Pentek Whole House Sediment Filter
  • DGD-7525-20 Pentek Whole House Water Filter
  • DGD-7525 Pentek Whole House Sediment Filter
  • Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    $11.99 MSRP: $15.34
    Save 22%
  • EPM-20 Pentek Whole House Water Filter

    Pentek EPM-20 Whole House Water Filter Replacement Cartridge

    $15.99 MSRP: $19.34
    Save 17%
  • EP-10 Pentek Comparable Carbon Block Water Filter by Tier1

    EP-10 Pentek Comparable Carbon Block Water Filter by Tier1

    $8.49 MSRP: $11.49
    Save 26%
  • P5 Pentek Comparable Whole House Replacement Sediment Filter Cartridge by Tier1
  • Pentek C1-20 Carbon Water Filter Replacement Cartridge

    Pentek C1-20 Water Filter Cartridge Replacements

    $16.99 MSRP: $20.00
    Save 15%
  • AP117 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • AP117 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • APS117 3M Aqua-Pure Comparable Whole House Carbon Water Filter by Tier1
  • D-20 Culligan Comparable Whole House Carbon Water Filter by Tier1
  • CFS117 Cuno Comparable Whole House Sediment Water Filter by Tier1
  • HDG-P117 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • RFC-20 Whole House Filter Replacement Cartridge by Tier1
  • WP-5 Pentek Comparable Replacement Filter Cartridge by Tier1
  • RFC-20 Pentek Comparable Whole House Filter Replacement Cartridge by Tier1
  • CB-25-2010 Hydronix Comparable Replacement Filter Cartridge by Tier1
  • W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • CB-25-1005 Hydronix Replacement Filter Cartridge

    CB-25-1005 Hydronix Replacement Filter Cartridge

    $10.49
    MSRP: $14.99
    Save 30%
  • GAC-10 Pentek Undersink Filter Replacement Cartridge

    GAC-10 Pentek Undersink Filter Replacement Cartridge

    $14.99
    MSRP: $19.99
    Save 25%
  • PENTEK-PS1-10C

    PENTEK-PS1-10C

    $6.99
  • PS20-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • C8 Pentek Whole House Replacement Filter Cartridge
  • CC-10 Pentek Undersink Filter Replacement Cartridge

    CC-10 Pentek Undersink Filter Replacement Cartridge

    $15.39
    MSRP: $21.99
    Save 30%
  • CEP-10E Pentek Replacement Filter Cartridge
  • HDG-P117 Hydronix Replacement Water Filter
  • HYDRONIX-CB-25-2010

    HYDRONIX-CB-25-2010

    $15.69
  • P5 Pentek Whole House Replacement Sediment Filter Cartridge

    P5 Pentek Whole House Replacement Sediment Filter Cartridge

    $6.99 MSRP: $10.34
    Save 32%
  • AP-GRMB-05PP-10UB Aquapure Whole House Filter Replacement by Tier1
  • SDC-25-1005 Hydronix Whole House Filter Replacement by Tier1
  • HAC-10-LR-W Harmsco Whole House Wilter Replacement by Tier1

    HAC-10-LR-W Harmsco Whole House Wilter Replacement by Tier1

    $8.49 MSRP: $11.49
    Save 26%
  • GX05-9-78 Hytrex Comparable Whole House Sediment Water Filter by Tier1
  • SDC-45-2001 Hydronix Comparable Whole House Replacement Sediment Filter Cartridge by Tier1

39 Item(s)

Grid  List 

Set Descending Direction
Scroll To Top