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Membranes

Replacement RO Membranes for Water Filtration Systems


We provide AppIied Membranes, Inc., Filmtec, LG, and GE replacement RO membranes used for home and business RO water filtration systems. At wateranywhere, we stock a large inventory of membrane elements from a variety of manufacturers that can fit various systems. Our products are on-hand and ready for immediate shipment.

Reverse osmosis is not only an efficient and cost-effective membrane separation process, but with proper care, these systems deliver an exceptional return on investment. RO membrane elements are recommended to be replaced every 24 months.

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    50 GPD (Gallon Per Day) Home RO Membrane | AMI Membranes

    M-T1812A50
    In Stock for Immediate Shipment

    AMI 50 Gallon per Day Home RO Reverse Osmosis Membrane AMI 50GPD home RO membrane elements are among the finest in the industry. With hundreds...

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    100 Gallon Per Day Home RO Membrane | AMI Membranes

    M-T1812A100
    In Stock for Immediate Shipment

    AMI 100 Gallon per Day Home RO Reverse Osmosis Membrane AMI 100GPD home RO membrane elements are among the finest in the industry. With hundre...

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    2.5"x40" | 700 GPD | 99.6% Salt Rejection | Watermaker Seawater RO Membrane | Applied Membranes

    M-S2540A
    In Stock for Immediate Shipment

    AMI 2.5x40 Seawater Desalination Reverse Osmosis Membranes For Watermakers and Land-and-Sea Based Seawater Desalinators Highest Salt Rejection ...

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    $249.39 - $249.39
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    2.5"x21" | 300 GPD | 99.6% Salt Rejection | Watermaker Seawater RO Membrane | Applied Membranes

    M-S2521A
    In Stock for Immediate Shipment

    AMI 2.5x21 Seawater Desalination Reverse Osmosis Membranes For Watermakers and Land-and-Sea Based Seawater Desalinators Highest Salt Rejection ...

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    $260.00 - $260.00
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    75 Gallon Per Day Home RO Membrane | AMI Membranes

    M-T1812A75
    In Stock for Immediate Shipment

    AMI 75 Gallon per Day Home RO Reverse Osmosis Membrane AMI 75GPD home RO membrane elements are among the finest in the industry. With hundreds...

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    24 Gallon Per Day Home RO Membrane | AMI Membranes | Replaces TW30-1812-24

    M-T1812A24
    In Stock for Immediate Shipment

    AMI 24 Gallon per Day Home RO Reverse Osmosis Membrane AMI 24GPD home RO membrane elements are among the finest in the industry. With hundreds...

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    36 Gallon Per Day Home RO Membrane | AMI Membranes (Replaces TW30-1812-36)

    M-T1812A36
    In Stock for Immediate Shipment

    AMI 36 Gallon per Day Home RO Reverse Osmosis Membrane AMI 36GPD home RO membrane elements are among the finest in the industry. With hundreds...

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    12 Gallon Per Day Home RO Membrane | AMI Membranes

    M-T1512A12
    In Stock for Immediate Shipment

    AMI 12 GPD Reverse Osmosis Membrane for Home RO Systems AMI home RO membrane elements are among the finest in the industry. With hundreds of ...

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    18 Gallon Per Day Home RO Membrane | AMI Membranes

    M-T1512A18
    In Stock for Immediate Shipment

    AMI 18 GPD Reverse Osmosis Membrane for Home RO Systems AMI home RO membrane elements are among the finest in the industry. With hundreds of t...

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    150 Gallon Per Day Home RO Membrane | AMI Membranes

    M-T1812A150
    In Stock for Immediate Shipment

    AMI 150 GPD Residential Membrane for Home RO Systems AMI 150GPD residential RO membrane elements are among the finest in the industry. With hu...

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    RO Membrane Replacement Cartridge for NTR-RO-50

    NTR-50M
    Ships in 5 Days

    Replacement RO Membrane Cartridge for NTR-RO-50 Home RO System - Stage 3 Model Number: NTR-50M Compatible with Systems: NTR-RO-50(Not...

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    $61.74 - $61.74
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    4"x40" Hollow Fiber UF 0.9 Membrane Element (1,300 to 3,900 GPD)

    M-U4040HF09
    In Stock for Immediate Shipment

    Hollow Fiber Ultrafiltration (UF) Membrane Elements AMI hollow fiber ultrafiltration (HF UF) membrane elements provide reliable rejection of m...

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    $461.25 - $461.25
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    3"x40" | 900 gpd | Seawater RO Membrane for Sea Recovery | Replaces 2724011433

    M-S3040B
    In Stock for Immediate Shipment

    AMI 3x40 Seawater Desalination Reverse Osmosis Membrane For Replacement in Sea Recovery and Blue Water Desalination Watermaker SystemsAdd AMI Mem...

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    $750.00 - $750.00
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    2.5"x14" | 150 GPD | 99.6% Salt Rejection | Watermaker Seawater RO Membrane | Applied Membranes

    M-S2514A
    In Stock for Immediate Shipment

    AMI 2.5x14 Seawater Desalination Reverse Osmosis Membranes For Watermakers and Land-and-Sea Based Seawater Desalinators Highest Salt Rejection ...

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    $245.00 - $245.00
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    4" x 40" | 2,400 GPD Commercial Reverse Osmosis RO Membrane | Applied Membranes

    M-T4040A
    In Stock for Immediate Shipment

    4" x 40" Reverse Osmosis Membrane | Tap or Brackish Water | 2,400 GPD RO Membrane AMI commercial RO membrane elements produce high quality water...

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    $265.00 - $265.00
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    1.8" x 12" UF PES Membrane 10,000 MWCO

    M-U1812PES
    In Stock for Immediate Shipment

    Ultrafiltration Membranes - Polyethersulfone (PES)Note: Actual color of tape may vary from the item pictured. Model Number: M-U1812PES Membran...

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    $65.70 - $65.70
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    2.5" x 21" | 325 GPD Commercial Reverse Osmosis RO Membrane | Applied Membranes

    M-T2521A
    In Stock for Immediate Shipment

    2.5" x 21" Reverse Osmosis Membrane | Tap or Brackish Water | 325 GPD RO Membrane AMI commercial RO membrane elements produce high quality water...

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    $210.00 - $210.00
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    2.5" x 40" | 1000 GPD Commercial Reverse Osmosis RO Membrane | Applied Membranes

    M-T2540A
    In Stock for Immediate Shipment

    2.5" x 40" Reverse Osmosis Membrane | Tap or Brackish Water | 1000 GPD RO Membrane AMI commercial RO membrane elements produce high quality wate...

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    $210.00 - $210.00
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    4" x 40" | 2,400 GPD | FRP Wrapped | Commercial Brackish RO Membrane | Applied Membranes

    M-B4040A
    In Stock for Immediate Shipment

    4" x 40" Brackish Water Reverse Osmosis Membrane | Fiberglasssed Shell | 2,400 GPD BWRO AMI commercial thin film BWRO elements are wrapped in a ...

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    $265.00 - $265.00
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    4"x40" | 1950 GPD | 99.6% Salt Rejection | Seawater RO Membrane | Applied Membranes

    M-S4040A
    In Stock for Immediate Shipment

    AMI 4x40 Seawater Desalination Reverse Osmosis MembranesFor Watermakers and Land-and-Sea Based Seawater Desalinators Highest Salt Rejection S...

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    $440.00 - $440.00
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    1.8" x 12" 36 GPD NF 90% Rejection Membrane

    M-N1812A9
    In Stock for Immediate Shipment

    Nanofiltration Membranes for Water Treatment SystemsNote: Actual color of tape may vary from the item pictured. Model Number: M-N1812A9 Flow ...

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    $34.29 - $34.29
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    2.5"x38" | 550 gpd | RO Membrane for Village Marine Watermaker

    M-S2538A
    Ships in 3 days

    AMI 2.5x38 Seawater Desalination Reverse Osmosis Membrane AquaPro Replacement For Replacement in Village Marine Watermaker Systems by Parker Raco...

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    $395.00 - $395.00
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    4" x 40" Nanofiltration Membrane | NF 90| 90% Salt Rejection

    M-N4040A9
    In Stock for Immediate Shipment

    4" x 40" Nanofiltration Membrane | NF9 - 90% Salt Rejection | 97% Hardness Rejection Applied Membranes NF9 spiral wound nanofiltration elements ...

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    $300.00 - $300.00
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    1.7"x13" | Katadyn 8012793 Watermaker & Emergency Desalination Membrane Replacement

    M-S1713A
    Ships in 5 Days

    Seawater Desalination Reverse Osmosis Membrane to Replace Katadyn 8012793 Pro Survivor 35For Katadyn Survivor Watermakers and Emergency Seawater D...

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    $340.00 - $340.00
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    1.8"X12" 36 GPD NF 50% Rejection Nanofiltration Membrane

    M-N1812A5
    In Stock for Immediate Shipment

    AMI NF5 Nanofiltration Membrane Elements AMI® NF5 spiral wound nanofiltration elements are ideal for removing a high percentage of TOC...

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    $55.50 - $55.50
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    36 GPD Culligan Replacement RO Membrane for Culligan AC Series Home RO Systems

    M-T1812AC36
    In Stock for Immediate Shipment

    AMI 36 GPD Culligan-Compatible Replacement for TFC 36 - AC Series Home RO Membranes AMI Culligan replacement membranes are specially designed fo...

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    $42.00 - $42.00
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    AMI 3"x12" | 300 GPD | High Flow Tankless RO Membrane

    M-T3012A
    In Stock for Immediate Shipment

    AMI 3"x12" 300 GPD Membrane for Tankless RO Systems AMI Residential RO membrane elements are among the finest in the industry. With hundreds ...

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    $75.00 - $75.00
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    $325.00
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    2.5"x19" | 220 gpd | Seawater RO Membrane for Village Marine Watermaker | Replaces AquaPro 33-2519

    M-S2519A-220
    In Stock for Immediate Shipment

    AMI 2.5x19" Seawater Desalination Reverse Osmosis Membrane to Replace AquaPro 33-2519For Replacement in Village Marine Watermaker Systems Add AMI ...

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    $325.00 - $325.00
    $325.00
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    2.5" x 26" | 600 GPD Commercial RO Membrane | Replaces FilmTec TW30HP-2526 Membrane

    M-T2526A
    Ships in 2 days

    AMI™ 2.5" x 26" Commercial RO Membrane Element for Commercial RO SystemsReplacement for FilmTec TW30HP-2526 and Trisep 2526-ACM4-TWT AMI M-T252...

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    $195.57 - $195.57
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    4"x21" | 800 GPD | 99.6% Salt Rejection | Watermaker Seawater RO Membrane | Applied Membranes

    M-S4021A
    In Stock for Immediate Shipment

    AMI 4x21 Seawater Desalination Reverse Osmosis Membranes For Watermakers and Land-and-Sea Based Seawater Desalinators Highest Salt Rejection Seaw...

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    $440.00 - $440.00
    $440.00
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    2.5" x 14” | 200 GPD Commercial Reverse Osmosis RO Membrane | Applied Membranes

    M-T2514A
    In Stock for Immediate Shipment

    2.5" x 14" Reverse Osmosis Membrane | Tap or Brackish Water | 200 GPD RO Membrane AMI commercial RO membrane elements produce high quality water...

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    $155.00 - $155.00
    $155.00
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    $155.00
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    4" x 40" Nanofiltration Membrane | NF 50| 50% Salt Rejection

    M-N4040A5
    In Stock for Immediate Shipment

    4" x 40" Nanofiltration Membrane | NF5 - 50% Salt Rejection | 97% Hardness Rejection NF5 spiral wound nanofiltration elements are ideal for remo...

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    $295.00 - $295.00
    $295.00
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    $295.00
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    2.5"x21" Hollow Fiber UF Membrane Element (220 to 660 GPD)

    M-U2521HF09
    In Stock for Immediate Shipment

    Hollow Fiber Ultrafiltration Membrane Elements Product Information Model: M-U2521HF09 Size (Approximate): 2.5" Diameter x 21" Length Membrane Type...

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    $327.49 - $327.49
    $327.49
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    $327.49
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    $410.00
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    $410.00

    4" x 40" Ultrafiltration Membrane | Polyacrylonitrile (PAN) UF | 20,000 MWCO

    M-U4040PAN
    In Stock for Immediate Shipment

    4" x 40" Ultrafiltration Membrane (UF Membrane) | Polyacrylonitrile PAN Membrane Elements Applied Membranes polyacrylonitrile (PAN) spiral woun...

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    $410.00 - $410.00
    $410.00
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    $410.00
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    $311.79
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    2.5" x 40" Ultrafiltration Membrane | Polyethersulfone (PES) UF | 10,000 MWCO

    M-U2540PES
    In Stock for Immediate Shipment

    2.5" x 40" Ultrafiltration Membrane (UF Membrane) | Polyethersulfone PES Membrane Elements Applied Membranes polyethersulfone (PES) spiral wou...

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    $311.79 - $311.79
    $311.79
    $311.79 - $311.79
    $311.79
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    $126.00

    GE Merlin Replacement RO Membrane | AMI Replacement for GE 1238342 and Pentair TLC-350 for Merlin RO System

    M-T1238342
    In Stock for Immediate Shipment

    AMI Replacement Membrane for GE Reverse Osmosis System Replaces GE Membrane 1238342 and Pentair Model TLC-350 (4000569) AMI M-T123842 Reverse O...

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    $126.00 - $126.00
    $126.00
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    $126.00

Home & Business Reverse Osmosis Membrane Replacements


At wateranywhere, we pride ourselves on our ability to serve any water filtration needs from home water purification to a variety of commercial applications including hotels and resorts, petrochemical, and food and beverage production.


Designed for point of use (POU) installation under the sink or counter, these RO filtration systems supply clean drinking water directly to a faucet, spigot, or refrigerator. We offer Applied Membranes, LG, Filmtec, and GE residential RO replacement membranes that fit a variety of reverse osmosis filtration systems. Consult this chart for a listing of applicable membrane sizes for various models.

Whole House RO Membrane Replacements


These systems are designed for point of entry (POE) installation to provide water free from contaminants to the entire building. This system connects to the main water line. We offer whole house RO membrane replacements from a variety of brand names.

Commercial RO Membranes


Replacement RO membranes used in a variety of business applications are typically run at higher pressures for optimum performance and higher rejection. We offer replacement membrane elements for water treatment systems used for water stores, larger facilities, carwashes, and manufacturing.

Reverse Osmosis Seawater Desalination


Seawater desalination forces seawater through a semipermeable membrane removing most of the impurities. This technology is used in several markets from oil and gas, to specialty applications. wateranywhere supplies RO replacement membranes used in seawater desalination used for converting seawater into usable, drinkable water.

MF, UF, NF, and RO Membranes Separation Processes Explained


Membrane elements are used in the membrane separation technology processes; all of which serve different levels of demineralization and decontamination. The different processes of separation refer to the pore size and type of semi-permeable membranes used to remove organic matter from the water. Microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO) membranes are explained below:

Microfiltration Membrane Separation


(pores equal 0.1 micron)- A pressure-driven filtration process which removes many microorganisms and suspended solid materials but allows smaller ions, particles, and many viruses to pass through.

Learn More

Ultrafiltration Membrane Separation


(pores equal to 0.01 micron)- UF is a pressure-driven separation process which removes larger microorganisms and suspended particulate matter as well as bacterias and most viruses. However, cannot remove dissolved substances without first absorbing them using a coagulate.

Learn More

Nanofiltration Membrane Separation


(pores equal 0.001 micron)- This type of filtration membrane blocks even smaller organic molecules and almost all viruses, as well as most organic matter and salts. NF is often used to soften hard water because it can remove divalent ions, which cause hard water.

Learn More

Reverse Osmosis (RO) Membrane Separation


(0.0001 micron)- RO is one of the most extensive and efficient water filtration methods. A RO system uses a pump to force water through the membrane. Contaminants remain on one side of the membrane (wastewater later drained) resulting in pure water collection on the other. Reverse osmosis removes 98% of harmful minerals including fluoride, salts, sediment, arsenic, chlorine, VOCs, herbicides, pesticides, bacteria and viruses.

Replacement Membranes & Components for Reliable Water Treatment


At wateranywhere, we know how vital clean, quality water is, which is why we take pride in offering the best in breed water filtration systems and RO replacement membranes. We offer reliable service and flexibility to best meet our customers’ needs including quick shipping, and affordable installation. We offer same day shipping on orders received before 3 PM PST.

Contact us to determine the best RO replacement membrane for your application.

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