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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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    4"x40" | 97% Salt Rejection | 2,000 GPD | FilmTec NF90 Element

    NF90-4040
    In Stock for Immediate Shipment

    DOW FILMTEC™ NF90-4040 Nanofiltration (NF) Membrane Elements for Commercial Systems The DOW FILMTEC NF90-4040 membrane elements provide high p...

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    2.5"x40" | 1,000 GPD | Fiber Wrapped | DOW FilmTec RO Membrane | Replaces BW30-2540

    BW30 PRO-2540
    In Stock for Immediate Shipment

    DuPont FILMTEC™ BW30 PRO-2540 Brackish Water Reverse Osmosis Membrane Element (Direct Replacement for DOW FilmTec BW30-2540) FILMTEC BW30 PRO...

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    4"x40" | 97% Salt Rejection | 2,500 GPD | FilmTec NF270 Element

    NF270-4040
    In Stock for Immediate Shipment

    DOW FILMTEC NF270-4040 Nanofiltration (NF) Membrane Elements for Commercial Systems DOW FILMTEC NF270-4040 Elements are ideal for remo...

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

    M-T2526A
    In Stock for Immediate Shipment

    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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    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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    2.5"x40" | DuPont FilmTec NF270 Nanofiltration Membrane | Medium Hardness Passage

    NF270-2540
    In Stock for Immediate Shipment

    DOW FILMTEC™ NF270-2540 Nanofiltration (NF) Membrane Elements for Commercial Systems DOW FILMTEC™ NF270-2540 Elements are ideal for removing a...

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    4"x21" | 900 GPD | Tape Wrapped | DOW FilmTec RO Membrane

    TW30-4021
    In Stock for Immediate Shipment

    DOW FILMTEC™ TW30-4021 Commercial Reverse Osmosis Membrane Element DOW FILMTEC TW30-4021 Reverse Osmosis (RO) Elements offer high qua...

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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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    2.5"x40" | DuPont FilmTec N90 Nanofiltration Membrane Element | High rejection

    NF90-2540
    Ships in 7 days

    DOW FILMTEC™ NF90-2540 Nanofiltration (NF) Membrane Elements for Commercial Systems The DOW FILMTEC NF90-2540 membrane elements provide high p...

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    2.5"x14" | 200 GPD | Tape Wrapped | DOW FilmTec RO Membrane

    TW30-2514
    In Stock for Immediate Shipment

    DOW FILMTEC™ TW30-2514 Brackish Water Reverse Osmosis Membrane Element DOW FILMTEC TW30-2514 Elements produce high quality water for ...

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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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    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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    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
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    100 GPD | High Rejection | 1.8 x 12 | DOW FilmTec RO Membrane

    TW30-1812-100HR
    In Stock for Immediate Shipment

    DOW FILMTEC™ TW30-1812-100HR High Rejection Home RO Membrane Element DOW FILMTEC TW30-1812-100HR Elements for home drinking water tre...

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

    M-U2540PES
    Ships in 5 Days

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

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    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
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    2.5"x38" | 210 gpd | RO Membrane for Village Marine Watermaker

    M-S2538A-210
    In Stock for Immediate Shipment

    AMI 2.5x38 Seawater Desalination Reverse Osmosis Membrane AquaPro Replacement For Replacement in Village Marine LIttle Wonder 200 Watermaker Syst...

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    $395.00 - $395.00
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    2.5" x 40" | 1,000 GPD | FRP Wrapped | Commercial Brackish RO Membrane | Applied Membranes

    M-B2540A
    In Stock for Immediate Shipment

    2.5" x 40" Brackish Water Reverse Osmosis Membrane | Fiberglasssed Shell | 1000 GPD BWRO AMI commercial thin film BWRO elements are wrapped in a...

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    $212.00 - $212.00
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    4" x 40" Ultrafiltration Membrane | Polyethersulfone (PES) UF | 10,000 MWCO

    M-U4040PES
    In Stock for Immediate Shipment

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

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    $425.00 - $425.00
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    2.5" x 14" NF 90% Rejection Membrane

    M-N2514A9
    In Stock for Immediate Shipment

    Nanofiltration Membranes for Water Filtration SystemsNote: Actual color of tape may vary from the item pictured. Model Number: M-N2514A9 Flow ...

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    $139.50 - $139.50
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    AMI 2" x 13" | 100 GPD | Commercial RO Membrane

    M-T2013A
    In Stock for Immediate Shipment

    AMI 2"x13" Commercial Reverse Osmosis Membrane for Commercial RO Systems Model Number: M-T2013A Flow Rate: 100 Gal/Day (378 L/Day) Mi...

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    $147.00 - $147.00
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    2.5" x 40" |PS Microfiltration Membrane Element | Polysulfone MF

    M-M2540PS20
    In Stock for Immediate Shipment

    2.5" x 40" Microfiltration Membrane (MF Membrane) | Polyslfone (PS) | 20,000 MWCO Applied Membranes, Inc. (AMI) polysulfone spiral wound microfi...

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    $226.82 - $226.82
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    2" x 26” | 220 GPD Commercial Reverse Osmosis RO Membrane | Applied Membranes | Replaces FilmTec TW30-2026

    M-T2026A
    In Stock for Immediate Shipment

    2" x 26" Reverse Osmosis Membrane | Tap or Brackish Water | 220 GPD RO Membrane AMI commercial RO membrane elements produce high quality water f...

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    $155.00 - $155.00
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    4" x 21" | 900 GPD Commercial Reverse Osmosis RO Membrane | Applied Membranes

    M-T4021A
    Ships in 2 days

    4" x 21" Reverse Osmosis Membrane | Tap or Brackish Water | 900 GPD RO Membrane AMI commercial RO membrane elements produce high quality water f...

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    $320.00 - $320.00
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    4" x 14" | 525 GPD Commercial Reverse Osmosis RO Membrane | Applied Membranes (Replaces TW30-4014)

    M-T4014A
    In Stock for Immediate Shipment

    4" x 14" Reverse Osmosis Membrane | Tap or Brackish Water | 525 GPD RO Membrane AMI commercial RO membrane elements produce high quality water f...

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    $315.00 - $315.00
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    200 Gallon Per Day Home RO Membrane | AMI Membranes

    M-T1812A200
    In Stock for Immediate Shipment

    AMI 200 GPD Residential Membrane for Home RO Systems AMI 200GPD residential RO membrane elements are among the finest in the industry. With hu...

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    2.5" x 21" Ultrafiltration Membrane | Polyacrylonitrile (PAN) UF | 20,000 MWCO

    M-U2521PAN
    Ships in 2 days

    2.5" x 21" Ultrafiltration Membrane (UF Membrane) | Polyacrylonitrile PAN Membrane Elements Applied Membranes polyacrylonitrile (PAN) spiral wo...

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    2.5" x 21" NF 90% Rejection Membrane

    M-N2521A9
    Ships in 2 days

    AMI 2.5" x 21" Nanofiltration Membrane Element 90% REJECTION NF MEMBRANE ELEMENT AMI 2.5 x 21 Nanofiltration Membrane produces 250 gallons per ...

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    $149.50 - $149.50
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    4"x40" Hollow Fiber UF 1.5 Membrane Element (860 to 2,580 GPD)

    M-U4040HF15
    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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    $437.50 - $437.50
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    2.5" x 40" Nanofiltration Membrane | NF 90| 90% Salt Rejection

    M-N2540A9
    In Stock for Immediate Shipment

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

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    2.5"x21" NF 50% Rejection Membrane

    M-N2521A5
    In Stock for Immediate Shipment

    Nanofiltration Membranes for Water Treatment SystemsNote: Actual color of tape may vary from the item pictured. Model Number: M-N2521A5 Flow R...

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    4" x 40" | PVDF Microfiltration Membrane Element | Polyvinylidene Fluoride

    M-M4040VDF
    In Stock for Immediate Shipment

    4" x 40" Microfiltration Membrane (MF Membrane) | Polyvinylidene Fluoride (PVDF) AMI polyvinylidine fluoride spiral wound microfiltration elemen...

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    $436.88 - $436.88
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    4"x40" | Full-Fit | Heat-Sanitizable | 2,400 GPD | FilmTec RO

    HSRO-4040-FF
    Ships in 5 Days

    DOW FILMTEC™ HSRO-4040-FF Heat-Sanitizable Full-Fit RO Elements DOW FILMTEC™ HSRO-4040-FF Elements are heat-sanitizable reverse osmosis elemen...

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

    M-U2540PAN
    In Stock for Immediate Shipment

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

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    $298.00 - $298.00
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    2.5" x 40" Nanofiltration Membrane | NF 50| 50% Salt Rejection

    M-N2540A5
    In Stock for Immediate Shipment

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

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    $268.59 - $268.59
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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.

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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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