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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38 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
  • DUPONT-WFHDC8001

    DUPONT-WFHDC8001

    $25.99
  • 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 Pentek Comparable Whole House Replacement Sediment Filter Cartridge by Tier1
  • 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%
  • 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%
  • TIER1-GAC-P117

    TIER1-GAC-P117

    $15.99
    MSRP: $54.13
    Save 70%
  • 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
  • RWC-5 Culligan Comparable Whole House Water Filter by Tier1
  • Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    $25.39
    MSRP: $32.99
    Save 23%
  • AMERICAN-PLUMBER-W5CIP

    AMERICAN-PLUMBER-W5CIP

    $21.99
  • AQUAPURE-AP117

    AQUAPURE-AP117

    $28.99
    MSRP: $36.67
    Save 21%
  • AQUAPURE-APS117

    AQUAPURE-APS117

    $33.99
    MSRP: $40.81
    Save 17%
  • 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
  • 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
  • TIER1-KDF55-10

    TIER1-KDF55-10

    $23.99
    MSRP: $28.74
    Save 17%
  • P5-D Culligan Comparable Whole House Filter Replacement Cartridge by Tier1 (2-Pack)
  • MAXETW-FF20 Watts C-MAX Whole House Replacement Filter Cartridge
  • KX-MATRIKX-32-450-10-GREEN

    KX-MATRIKX-32-450-10-GREEN

    $31.99
    MSRP: $32.19
    Save 1%
  • P5 Pentek Whole House Replacement Sediment Filter Cartridge
  • AP-GRMB-05PP-10UB Aquapure Whole House Filter Replacement by Tier1
  • SDC-25-1005 Hydronix Whole House Filter Replacement by Tier1
  • GX05-9-78 Hytrex Comparable Whole House Sediment Water Filter by Tier1

38 Item(s)

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