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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Items 1 to 48 of 129 total

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  • TFM-18-A Tier1 Reverse Osmosis Membrane

    TFM-18-A Tier1 Reverse Osmosis Membrane

    $35.99
    MSRP: $45.99
    Save 22%
  • TFM-36-A Tier1 Reverse Osmosis Membrane

    TFM-36-A Tier1 Reverse Osmosis Membrane

    $36.99
    MSRP: $49.99
    Save 26%
  • Tier1 TROM-100 RO Membrane
  • Tier1 TROM-24 RO Membrane
  • TROM-50 Reverse Osmosis Membrane by Tier1 (50 GPD)

    TROM-50 Reverse Osmosis Membrane by Tier1 (50 GPD)

    $30.99
    MSRP: $50.99
    Save 39%
  • Tier1 TROM-75 RO Membrane
  • TFM-18 Desal Compatible Reverse Osmosis Membrane by Tier1

    TFM-18 Desal Compatible Reverse Osmosis Membrane by Tier1

    $35.99 MSRP: $45.99
    Save 22%
  • ROM-100 Campbell Comparable Reverse Osmosis Membrane by Tier1
  • RF-63 Honeywell Comparable Reverse Osmosis Membrane by Tier1
  • TFM-36 Desal Comparable Reverse Osmosis Membrane by Tier1

    TFM-36 Desal Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • FX12M GE Comparable Reverse Osmosis Membrane by Tier1

    FX12M GE Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • TFM-36 Axeon Comparable Reverse Osmosis Membrane by Tier1

    TFM-36 Axeon Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • TW30-1812-36 Filmtec Comparable Reverse Osmosis Membrane by Tier1
  • MEM-45 APEC Comparable Reverse Osmosis Membrane by Tier1

    MEM-45 APEC Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • AG1812TAE GE Comparable Reverse Osmosis Membrane by Tier1

    AG1812TAE GE Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • TLC-36 Pentair Comparable Reverse Osmosis Membrane by Tier1
  • W-1812-36 Watts Comparable Reverse Osmosis Membrane by Tier1
  • Filmtec TW30-1812-50 Comparable Reverse Osmosis Membrane by Tier1
  • Axeon 200359 Comparable Reverse Osmosis Membrane by Tier1

    Axeon 200359 Comparable Reverse Osmosis Membrane by Tier1

    $30.99 MSRP: $50.99
    Save 39%
  • Coralife 100105704 Comparable Reverse Osmosis Membrane by Tier1
  • AMI T1812A50 Comparable Reverse Osmosis Membrane by Tier1

    AMI T1812A50 Comparable Reverse Osmosis Membrane by Tier1

    $30.99 MSRP: $50.99
    Save 39%
  • Watts 560018 Comparable Reverse Osmosis Membrane by Tier1

    Watts 560018 Comparable Reverse Osmosis Membrane by Tier1

    $30.99 MSRP: $50.99
    Save 39%
  • Pentair TLC-50 Comparable Reverse Osmosis Membrane by Tier1

    Pentair TLC-50 Comparable Reverse Osmosis Membrane by Tier1

    $30.99 MSRP: $50.99
    Save 39%
  • TROM- 50 Comparable Reverse Osmosis Membrane by Tier1

    Desal TFM-50 Comparable Reverse Osmosis Membrane by Tier1

    $30.99 MSRP: $50.99
    Save 39%
  • WROM-230T American Plumber Reverse Osmosis Replacement Membrane
  • WROM-230TN American Plumber Reverse Osmosis Replacement Membrane
  • AG2521TF Desal Commercial Reverse Osmosis Membrane

    AG2521TF Desal Commercial Reverse Osmosis Membrane

    $137.29
    MSRP: $203.99
    Save 33%
  • AG2540TF Desal Reverse Osmosis Membrane

    AG2540TF Desal Reverse Osmosis Membrane

    $219.99
    MSRP: $226.54
    Save 3%
  • AG4021TF Desal Commercial Reverse Osmosis Membrane

    AG4021TF Desal Commercial Reverse Osmosis Membrane

    $232.99
    MSRP: $270.24
    Save 14%
  • AG4040FF Desal Commercial Reverse Osmosis Membrane

    AG4040FF Desal Reverse Osmosis Membrane

    $319.99
    MSRP: $370.29
    Save 14%
  • AK4040FF Desal Commercial Reverse Osmosis Membrane

    AK4040FF Desal Commercial Reverse Osmosis Membrane

    $329.99
    MSRP: $381.79
    Save 14%
  • PW4040C1027 Desal Ultrafiltration Reverse Osmosis Membrane

    PW4040C1027 Desal Ultrafiltration Reverse Osmosis Membrane

    $999.99
    MSRP: $1,152.29
    Save 13%
  • RO-4040 Desal Duraslick Reverse Osmosis Membrane

    RO-4040 Desal Duraslick Reverse Osmosis Membrane

    $449.99
    MSRP: $519.79
    Save 13%
  • TFM-100 Desal Reverse Osmosis Membrane

    TFM-100 Desal Reverse Osmosis Membrane

    $29.99
    MSRP: $32.19
    Save 7%
  • TFM-100EN Desal Encapsulated Reverse Osmosis Membrane

    TFM-100EN Desal Encapsulated Reverse Osmosis Membrane

    $57.99
    MSRP: $68.99
    Save 16%
  • TFM-18 Desal Reverse Osmosis Membrane

    TFM-18 Desal Reverse Osmosis Membrane

    $33.99
    MSRP: $39.09
    Save 13%
  • TFM-24 Desal Reverse Osmosis Membrane

    TFM-24 Desal Reverse Osmosis Membrane

    $24.99
    MSRP: $47.14
    Save 47%
  • TFM-36 Desal Reverse Osmosis Membrane

    TFM-36 Desal Reverse Osmosis Membrane

    $39.99
    MSRP: $49.44
    Save 19%
  • TFM-50 Desal Reverse Osmosis Membrane
  • TFM-50EB Desal Encapsulated Reverse Osmosis Membrane
  • TFM-75 Desal Reverse Osmosis Membrane

    TFM-75 Desal Reverse Osmosis Membrane

    $46.99
    MSRP: $56.34
    Save 17%
  • TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    $74.99
    MSRP: $114.99
    Save 35%
  • TLC-150EB Desal Encapsulated Reverse Osmosis Membrane
  • BW30-4040 Filmtec Brackish Water Industrial Reverse Osmosis Membrane
  • NF90-400 Filmtec Nanofiltration Element
  • SW30-2521 Filmtec Seawater Desalination Reverse Osmosis Membrane
  • SW30HR-380 Filmtec Seawater Desalination Reverse Osmosis Membrane

    SW30HR-380 Filmtec Seawater Desalination Reverse Osmosis Membrane

    $999.99
    MSRP: $1,152.29
    Save 13%
  • TW30-1812-100HR Filmtec Reverse Osmosis Membrane (100GPD)

    TW30-1812-100HR Filmtec Reverse Osmosis Membrane (100GPD)

    $39.99
    MSRP: $48.29
    Save 17%

Items 1 to 48 of 129 total

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