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.

30 Item(s)

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  • RS2SS OmniFilter Comparable Whole House Water Filter by Tier1
  • ROR2000-S-05 OmniFilter Reverse Osmosis Pre Filter Replacement
  • RS14-SS OmniFilter Whole House Water Filter
  • RS1-SS OmniFilter Whole House Water Filter
  • TO1SS OmniFilter Whole House Water Filter
  • TO6-SS2-S06 OmniFilter Whole House Water Filter
  • CP5-BBS-D Culligan Comparable Whole House Water Filter by Tier1
  • CP5-BBS-D Culligan Comparable Whole House Water Filter by Tier1
  • HB-10-5W Harmsco Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-1001 Hydronix 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
  • TO6 OmniFilter Comparable Whole House Sediment Water Filter by Tier1
  • FMHC-90-5EZ Watts Comparable Whole House Sediment Water Filter by Tier1
  • RS7-SS OmniFilter Comparable Whole House Sediment Water Filter by Tier1
  • AMERICAN-PLUMBER-W20CLA

    AMERICAN-PLUMBER-W20CLA

    $11.99
    MSRP: $12.64
    Save 5%
  • AMERICAN-PLUMBER-W30PE

    AMERICAN-PLUMBER-W30PE

    $16.99
    MSRP: $18.04
    Save 6%
  • AMERICAN-PLUMBER-W50PE

    AMERICAN-PLUMBER-W50PE

    $16.99
    MSRP: $18.39
    Save 8%
  • AMERICAN-PLUMBER-W50W

    AMERICAN-PLUMBER-W50W

    $13.99
  • AMERICAN-PLUMBER-W5W

    AMERICAN-PLUMBER-W5W

    $13.99
  • CB6

    CB6

    $83.99
  • RS14DS

    RS14DS

    $6.99
    MSRP: $8.15
    Save 14%
  • RS2SS

    RS2SS

    $6.99
    MSRP: $8.04
    Save 13%
  • RS3SS

    RS3SS

  • RS7SS

    RS7SS

    $6.99
    MSRP: $8.38
    Save 17%
  • RS15 OmniFilter Whole House Replacement Filter Cartridge
  • RS2DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)
  • RS3DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)
  • TO1DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)
  • RS4-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)

30 Item(s)

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