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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.

Items 1 to 48 of 112 total

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  • WROM-230T American Plumber Reverse Osmosis Replacement Membrane
  • WROM-230TN American Plumber Reverse Osmosis Replacement Membrane
  • 3M Aqua-Pure AP5500RM Reverse Osmosis Membrane

    AP5500RM 3M Aqua-Pure Reverse Osmosis Membrane

    $107.99 Retail Price:  $200.00
  • AG2521TF Desal Commercial Reverse Osmosis Membrane

    AG2521TF Desal Commercial Reverse Osmosis Membrane

    $129.99 Retail Price:  $151.79
  • AG2540TF Desal Reverse Osmosis Membrane

    AG2540TF Desal Reverse Osmosis Membrane

    $219.99 Retail Price:  $226.54
  • AG4021TF Desal Commercial Reverse Osmosis Membrane

    AG4021TF Desal Commercial Reverse Osmosis Membrane

    $232.99 Retail Price:  $270.24
  • AG4040FF Desal Commercial Reverse Osmosis Membrane

    AG4040FF Desal Reverse Osmosis Membrane

    $319.99 Retail Price:  $370.29
  • AK4040FF Desal Commercial Reverse Osmosis Membrane

    AK4040FF Desal Commercial Reverse Osmosis Membrane

    $329.99 Retail Price:  $381.79
  • PW4040C1027 Desal Ultrafiltration Reverse Osmosis Membrane

    PW4040C1027 Desal Ultrafiltration Reverse Osmosis Membrane

    $999.99 Retail Price:  $1152.29
  • RO-4040 Desal Duraslick Reverse Osmosis Membrane

    RO-4040 Desal Duraslick Reverse Osmosis Membrane

    $449.99 Retail Price:  $519.79
  • TFM-100 Desal Reverse Osmosis Membrane

    TFM-100 Desal Reverse Osmosis Membrane

    $29.99 Retail Price:  $32.19
  • TFM-100EN Desal Encapsulated Reverse Osmosis Membrane

    TFM-100EN Desal Encapsulated Reverse Osmosis Membrane

    $57.99 Retail Price:  $68.99
  • TFM-18 Desal Reverse Osmosis Membrane

    TFM-18 Desal Reverse Osmosis Membrane

    $33.99 Retail Price:  $39.09
  • TFM-24 Desal Reverse Osmosis Membrane

    TFM-24 Desal Reverse Osmosis Membrane

    $24.99 Retail Price:  $47.14
  • TFM-36 Desal Reverse Osmosis Membrane

    TFM-36 Desal Reverse Osmosis Membrane

    $39.99 Retail Price:  $49.44
  • TFM-50 Desal Reverse Osmosis Membrane

    TFM-50 Desal Reverse Osmosis Membrane

    $33.99 Retail Price:  $54.04
  • TFM-50EB Desal Encapsulated Reverse Osmosis Membrane

    TFM-50EB Desal Encapsulated Reverse Osmosis Membrane

    $69.99 Retail Price:  $82.79
  • TFM-75 Desal Reverse Osmosis Membrane

    TFM-75 Desal Reverse Osmosis Membrane

    $46.99 Retail Price:  $56.34
  • TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    $49.99 Retail Price:  $59.79
  • TLC-150EB Desal Encapsulated Reverse Osmosis Membrane
  • BW30-4040 Filmtec Brackish Water Industrial Reverse Osmosis Membrane
  • NF90-400 Filmtec Nanofiltration Element

    NF90-400 Dow Filmtec Nanofiltration Element

    $999.99 Retail Price:  $1152.29
  • SW30-2521 Filmtec Seawater Desalination Reverse Osmosis Membrane
  • SW30HR-380 Filmtec Seawater Desalination Reverse Osmosis Membrane
  • TW30-1812-100 Filmtec Reverse Osmosis Membrane

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

    $39.99 Retail Price:  $48.29
  • TW30-1812-24 Filmtec Reverse Osmosis Membrane

    TW30-1812-24 Filmtec Reverse Osmosis Membrane

    $23.99 Retail Price:  $40.24
  • TW30-1812-36 Filmtec Reverse Osmosis Membrane

    TW30-1812-36 Filmtec Reverse Osmosis Membrane

    $41.99 Retail Price:  $48.29
  • TW30-1812-50 Filmtec Reverse Osmosis Membrane

    TW30-1812-50 Filmtec Reverse Osmosis Membrane (50 GPD)

    $25.99 Retail Price:  $51.74
  • TW30-1812-75 Filmtec Reverse Osmosis Membrane
  • TW30-2026 Filmtec Commercial Reverse Osmosis Membrane

    TW30-2026 Filmtec Commercial Reverse Osmosis Membrane

    $149.99 Retail Price:  $174.79
  • TW30-2521 Filmtec Commercial Reverse Osmosis Membrane

    TW30-2521 Filmtec Commercial Reverse Osmosis Membrane

    $177.99 Retail Price:  $203.54
  • TW30-2540 Filmtec Commercial Reverse Osmosis Membrane

    TW30-2540 Filmtec Commercial Reverse Osmosis Membrane

    $233.99 Retail Price:  $236.34
  • TW30-4021 Filmtec Commercial Reverse Osmosis Membrane

    TW30-4021 Filmtec Commercial Reverse Osmosis Membrane

    $249.99 Retail Price:  $289.79
  • TW30-4040 Filmtec Commercial Reverse Osmosis Membrane

    TW30-4040 Filmtec Commercial Reverse Osmosis Membrane

    $275.99 Retail Price:  $312.79
  • XLE-2521 Filmtec Extra Low Energy Commercial Reverse Osmosis Membrane
  • XLE-2540 Filmtec Extra Low Energy Commercial Reverse Osmosis Membrane
  • XLE-4040 Filmtec Extra Low Energy Commercial Reverse Osmosis Membrane
  • FQROMF GE Profile SmartWater Ultra Plus Reverse Osmosis Membrane
  • FX12M GE SmartWater Reverse Osmosis Membrane

    FX12M GE SmartWater Reverse Osmosis Membrane

    $58.99 Retail Price:  $71.29
  • FX18M GE SmartWater Reverse Osmosis Membrane

    FX18M GE SmartWater Reverse Osmosis Membrane

    $72.99 Retail Price:  $94.29
  • ROM-16C Pentek Reverse Osmosis Replacement Membrane

    ROM-16C Pentek Reverse Osmosis Replacement Membrane

    $49.99 Retail Price:  $56.80
  • ROM-230TN Pentek Reverse Osmosis Membrane

    ROM-230TN Pentek Reverse Osmosis Membrane

    $75.99 Retail Price:  $86.93
  • ROM-26T Pentek Reverse Osmosis Membrane

    ROM-26T Pentek Reverse Osmosis Membrane

    $73.99 Retail Price:  $84.05
  • TQ56-36FC PuROTwist PuROTwist Reverse Osmosis Membrane

    TQ56-36FC PuROTwist PuROTwist Reverse Osmosis Membrane

    $75.99 Retail Price:  $82.79
  • TQ56-50FC PuROTwist PuROTwist Reverse Osmosis Membrane

    TQ56-50FC PuROTwist PuROTwist Reverse Osmosis Membrane

    $101.99 Retail Price:  $119.59
  • TFM-18-A Tier1 Reverse Osmosis Membrane

    TFM-18-A Tier1 Reverse Osmosis Membrane

    $35.99 Retail Price:  $45.99
  • TFM-36-A Tier1 Reverse Osmosis Membrane

    TFM-36-A Tier1 Reverse Osmosis Membrane

    $36.99 Retail Price:  $50.59
  • 66-1311 Water Factory Systems Reverse Osmosis Membrane

    66-1311 Water Factory Systems Reverse Osmosis Membrane

    $365.99 Retail Price:  $488.74

Items 1 to 48 of 112 total

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