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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34 Item(s)

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  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • RS2SS OmniFilter Comparable Whole House Water Filter by Tier1
  • WFHDC8001 DuPont Universal Heavy Duty Carbon Wrap 2-Phase Cartridge
  • WFPF38001C DuPont Universal Valve-In-Head Whole House Water Filtration System
  • C1-20 Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)
  • EP-20BB Pentek Replacement Water Filter
  • C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • P5-10 Tier1 Sediment Water Filter

    P5-10 Tier1 Sediment Water Filter

    $3.99 MSRP: $10.34
    Save 61%
  • The Pentek C1 comparable Whole House Carbon Water Filter by Tier1

    Pentek C1 Comparable Carbon Block Water Filter by Tier1

    $10.99 MSRP: $19.99
    Save 45%
  • TO1SS OmniFilter Whole House Water Filter
  • TO6-SS2-S06 OmniFilter Whole House Water Filter
  • 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
  • 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
  • WHKF-GAC AP117 Whirlpool Comparable Whole House Sediment Water Filter by Tier1
  • WP-5 Pentek Comparable Replacement Filter Cartridge by Tier1
  • Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    $25.39
    MSRP: $32.99
    Save 23%
  • W5CIP American Plumber Undersink Filter Replacement 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
  • EV9797-21 Everpure Commercial Filter System

    EV9797-21 Everpure Commercial Filter System

    $599.99
    MSRP: $692.29
    Save 13%
  • FXWTC GE SmartWater Whole House Filter Replacement Cartridge
  • MAXETW-FF20 Watts C-MAX Whole House Replacement Filter Cartridge
  • MATRIKX 32-450-10-GREEN / CTO2-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • 3038333 Merlin Reverse Osmosis Carbon Pre Filter

    3038333 Merlin Reverse Osmosis Carbon Pre Filter

    $28.49
    MSRP: $35.99
    Save 21%
  • CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    $45.39
    MSRP: $67.99
    Save 33%
  • HDG-P117 Hydronix Replacement Water Filter
  • KDF55-10 Tier1 Water Filter

    KDF55-10 Tier1 Water Filter

    $23.99
    MSRP: $27.34
    Save 12%
  • AP117 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • WPD-110 American Plumber Comparable Whole House Sediment Filter Cartridge by Tier1 (2-Pack)

34 Item(s)

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