Discount Water Filters and Air Filters at Discount Filter Store.com

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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.

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46 Item(s)

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  • RS2SS OmniFilter Comparable Whole House Water Filter by Tier1
  • WFPF38001C DuPont Universal Valve-In-Head Whole House Water Filtration System
  • Pentek EP-20 Replacement Water Filter Cartridge

    Pentek EP-20 Water Filter Cartridge Replacements

    $17.99 MSRP: $20.00
    Save 10%
  • EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    $27.99 MSRP: $32.32
    Save 13%
  • TO1SS OmniFilter Whole House Water Filter
  • TO6-SS2-S06 OmniFilter Whole House Water Filter
  • CP5-BBS-D Culligan Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)
  • CP5-BBS-D Culligan Comparable Whole House Water Filter by Tier1
  • CP5-BBS-D Culligan Comparable Whole House Water Filter by Tier1
  • CQE-RC-04033 Crystal Quest 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
  • RS15 Omnifilter 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
  • FMHC-90-5EZ Watts Comparable Whole House Sediment Water Filter by Tier1
  • W5W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • 3M Aqua-Pure AP117 Whole House Water Filter Cartridge

    3M Aqua-Pure AP117 Whole House Filter Replacement Cartridge

    $28.99
    MSRP: $54.13
    Save 46%
  • 3M Aqua-Pure APS117 Whole House Water Filter Replacement Cartridge
  • CP5-BBS-D Culligan Level 4 Whole House Filter Replacement Cartridge
  • CFS117-S Cuno Whole House Filter Replacement Cartridge

    CFS117-S Cuno Whole House Filter Replacement Cartridge

    $32.05
    MSRP: $40.24
    Save 20%
  • CFS8110 Cuno Whole House Filter Replacement Cartridge

    CFS8110 Cuno Whole House Filter Replacement Cartridge

    $56.99
    MSRP: $61.97
    Save 8%
  • 7CB5 Everpure Replacement Filter Cartridge

    7CB5 Everpure Replacement Filter Cartridge

    $66.79
    MSRP: $115.99
    Save 42%
  • 7CB5-S Everpure Replacement Filter Cartridge

    7CB5-S Everpure Replacement Filter Cartridge

    $75.99
    MSRP: $86.24
    Save 12%
  • EFS8002 Everpure Replacement Filter Cartridge

    EFS8002 Everpure Replacement Filter Cartridge

    $48.99
    MSRP: $58.64
    Save 16%
  • EFS8002-S Everpure Replacement Filter Cartridge

    EFS8002-S Everpure Replacement Filter Cartridge

    $52.99
    MSRP: $83.99
    Save 37%
  • EV9797-21 Everpure Commercial Filter System

    EV9797-21 Everpure Commercial Filter System

    $599.99
    MSRP: $692.29
    Save 13%
  • K00174 Manitowoc Tri-Liminator Replacement Ice Maker Filter Cartridge
  • RS2-SS OmniFilter Whole House Filter Replacement Cartridge

    RS2-SS OmniFilter Whole House Water Filter Cartridge

    $6.99
    MSRP: $8.04
    Save 13%
  • WHKF-WHSW Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)
  • MATRIKX-CTO2-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-CTO2-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • 3038333 Merlin Reverse Osmosis Carbon Pre Filter

    3038333 Merlin Reverse Osmosis Carbon Pre Filter

    $28.59
    MSRP: $35.99
    Save 21%
  • RS15 OmniFilter Whole House Replacement Filter Cartridge
  • RS2DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)
  • TO1DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)
  • CFB-Plus10 Pentek Replacement Filter Cartridge

    CFB-Plus10 Pentek Replacement Water Filter Cartridge

    $9.99
    MSRP: $14.13
    Save 29%
  • CFB-Plus20 Pentek Replacement Filter Cartridge

    CFB-Plus20 Pentek Replacement Water Filter Cartridge

    $17.99
    MSRP: $32.99
    Save 45%
  • EP-30 Pentek Replacement Filter Cartridge

    EP-30 Pentek Replacement Water Filter Cartridge

    $38.69
    MSRP: $67.99
    Save 43%
  • RS4-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • HAC-10-LR-W Harmsco Chlorine and Lead Removal Whole House Filter

46 Item(s)

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