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, & Parts

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.

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  • Hydronix SPC-25-1005 Pleated Water Filter
  • 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%
  • Pentek ECP1-10 Replacement Water Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

    $11.99 MSRP: $17.99
    Save 33%
  • Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    $11.99 MSRP: $15.34
    Save 22%
  • Pentek P1-20 Whole House Water Filter Replacement Cartridge
  • DGD-5005 Pentek Whole House Filter Replacement Cartridge by Tier1
  • W20CLHD American Plumber Whole House Sediment Filter by Tier1
  • ECP20-BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • C1 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • WHKF-DB1 Whirlpool Comparable Under Sink Water Filter by Tier1
  • R30-20 Pentek Comparable Sediment Water Filter by Tier1

    R30-20 Pentek Comparable Sediment Water Filter by Tier1

    $11.99 MSRP: $23.99
    Save 50%
  • Omnifilter CB3 Comparable Carbon Block Whole House Water Filter by Tier1
  • CBR2-10 Pentek Comparable Carbon Block Whole House Water Filter by Tier1
  • Floplus 10 Pentek Comparable Carbon Block Whole House Water Filter by Tier1
  • D-30 Culligan Comparable Carbon Block Whole House Water Filter by Tier1
  • CBR2-10R Pentek Comparable Carbon Block Whole House Water Filter by Tier1
  • FXULC GE SmartWater Comparable Undersink Filter Replacement Cartridge by Tier1
  • CHLORPLUS-10 Pentek Comparable Whole House Water Filter by Tier1
  • D-40 Culligan Comparable Undersink Water Filter Replacement Cartridge by Tier1
  • CB1-SS6-S06 OmniFilter Comparable Undersink Water Filter Cartridge by Tier1
  • CB-25-2010 Hydronix Comparable Replacement Filter Cartridge by Tier1
  • MAXETW-975 Watts Comparable C-MAX Replacement Water Filter Cartridge by Tier1
  • CB3-SS6-06 OmniFilter Comparable Undersink Filter Replacement Cartridge by Tier1
  • FXUTC GE SmartWater Comparable Undersink Filter Replacement Cartridge by Tier1
  • FX12P GE SmartWater Comparable Reverse Osmosis Filter by Tier1
  • SDC-25-3005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • 255541-43 Pentek Inline Water Filter Replacement
  • C1 Pentek Comparable Carbon Block Water Filter by Tier1

    C1 Pentek Comparable Carbon Block Water Filter by Tier1

    $12.99 MSRP: $18.99
    Save 32%
  • CP5-BBS-D Culligan Comparable Whole House Water Filter by Tier1
  • W5CIP American Plumber Whole House Carbon Water Filter by Tier1
  • HB-10-5W Harmsco Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-1005 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-1010 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • ECP50-BB Pentek Comparable Whole House Sediment Filter by Tier1
  • TO6 OmniFilter Comparable Whole House Sediment Water Filter by Tier1
  • SPC-25-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1
  • SWC-45-1005 Hydronix Comparable String-Wound Sediment Water Filter by Tier1
  • SWC-45-1010 Hydronix Comparable String-Wound Sediment Water Filter by Tier1
  • WP10BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1
  • WP5BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1
  • WPX10BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1
  • WPX5BB97P Pentek Comparable String-Wound Sediment Water Filter by Tier1
  • SPC-25-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1
  • SWC-45-1005 Comparable Hydronix String-Wound Sediment Water Filter by Tier1
  • P10-30 Spun Wound Polypropylene Replacement Filter by Tier1 (10 micron)
  • CFBC-10 Pentek Whole House Carbon Block Water Filter
  • C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • R50-BB Pentek Comparable Whole House Sediment Water Filter by Tier1

Items 1 to 48 of 213 total

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