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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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    2.5” x 40” | 1000 GPD | 150 PSI | Low Energy RO Membrane | Applied Membranes

    M-T2540ALE
    In Stock for Immediate Shipment

    2.5" x 40" Low Energy Reverse Osmosis Membrane | Tap or Brackish Water | 1,000 GPD at 150 PSI AMI Low Energy (Low Pressure) RO Membrane elements...

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    $220.00 - $220.00
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    4"x40" | 1950 GPD | 99.6% Salt Rejection | Seawater RO Membrane | Applied Membranes

    M-S4040A
    Ships in 2 days

    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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    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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    4"x40" | 2,400 GPD | Fiber Wrapped | DOW FilmTec RO Membrane | Replaces BW30-4040 & LC HR-4040

    BW30 PRO-4040
    In Stock for Immediate Shipment

    DuPont FILMTEC™ BW30 PRO-4040 Brackish Water Reverse Osmosis Membrane Element (Direct Replacement for DOW FilmTec BW30-4040 & LC HR-4040 )...

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    $281.99 - $281.99
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    2.5"x38" | 550 gpd | RO Membrane for Village Marine Watermaker

    M-S2538A
    In Stock for Immediate Shipment

    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 21" | 1,025 GPD | 100 PSI | XLE Extra-Low Energy RO Membrane | Applied Membranes

    M-T4021AXLE
    In Stock for Immediate Shipment

    4" x 21" Extra-Low Energy Reverse Osmosis Membrane | Tap or Brackish Water | 1,025 GPD at 100 PSI AMI Extra-Low Energy (Low Pressure) XLE RO Memb...

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    $325.00 - $325.00
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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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    2.5” x 40” | 850 GPD | 100 PSI | XLE Extra-Low Energy RO Membrane | Applied Membranes

    M-T2540AXLE
    In Stock for Immediate Shipment

    2.5" x 40" Extra-Low Energy Reverse Osmosis Membrane | Tap or Brackish Water | 850 GPD at 100psi AMI Extra-Low Energy (Low Pressure) XLE RO Membr...

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    $225.00 - $225.00
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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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    1.7"x13" | Katadyn 8012793 Watermaker & Emergency Desalination Membrane Replacement

    M-S1713A
    In Stock for Immediate Shipment

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

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    2” x 26” | 300 GPD | 150 PSI | Low Energy RO Membrane | Applied Membranes

    M-T2026ALE
    In Stock for Immediate Shipment

    2" x 26" Low Energy Reverse Osmosis Membrane | Tap Water | 450 GPD at 150 PSI | LE RO Membrane AMI Low Energy (Low Pressure) RO Membrane element...

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    4" x 40" | 2450 GPD | 150 psi | 99.4% Rej. | Hydranautics ESPA Low Pressure Membrane (Replaces ESPA1-4040)

    ESPA1-LD-4040
    In Stock for Immediate Shipment

    Hydranautics ESPA1-LD-4040 4" x 40" Membrane Element Hydranautics ESPA1-LD-4040 is used in the treatment of low TDS waters to produce potable wat...

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    $290.00 - $290.00
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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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    4"x40" | 1,950 GPD | 99.4% Salt Rejection | Watermaker | FilmTec SW30-4040 Seawater Membrane

    SW30-4040
    In Stock for Immediate Shipment

    DuPont FILMTEC SW30-4040 Seawater RO Elements for Watermakers and Marine Systems (Replaces SW30HRLE-4040) DuPont DOW FILMTEC SW30-4040 element...

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    $471.07 - $471.07
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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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    $422.17 - $422.17
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    3" x 20" | RO Membrane to Replace Ametek 20 | 900 GPD | Applied Membranes, Incl

    M-T3020A
    In Stock for Immediate Shipment

    Applied Membranes 3x20 Commercial RO Membrane Replacement for Ametek 20 Applied Membranes M-T3020A 3x20 Commercial Reverse Osmosis Membrane eleme...

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    $175.00 - $175.00
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  • $236.35 - $236.35
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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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    $236.35 - $236.35
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  • $275.00 - $275.00
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    4" x 40" | 2,900 GPD at 150 PSI | FRP Wrapped | Low Energy Commercial RO Membrane | Applied Membranes

    M-B4040ALE
    In Stock for Immediate Shipment

    4" x 40" Low Energy Brackish Water RO Membrane | Fiberglasssed Shell | 2900 GPD BWRO LE AMI Low Energy (Low Pressure) RO Membrane elements are s...

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    $275.00 - $275.00
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  • $422.17 - $422.17
    $422.17
    $422.17 - $422.17
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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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    $422.17 - $422.17
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    2.5"x21" | 365 GPD | Low Energy | Tape Wrap | FilmTec Membrane

    XLE-2521
    In Stock for Immediate Shipment

    DOW FILMTEC™ XLE-2521 Low Energy Reverse Osmosis Membrane Element DOW FILMTEC TW30-2521 Elements produce high quality water for small...

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    $210.27 - $210.27
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  • $325.00 - $325.00
    $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
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  • $195.57 - $195.57
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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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    $195.57 - $195.57
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  • $440.00 - $440.00
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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
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  • $370.52 - $370.52
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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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    $370.52 - $370.52
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    $370.52 - $370.52
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  • $339.04 - $339.04
    $339.04
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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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    $339.04 - $339.04
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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
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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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    $366.75 - $366.75
    $366.75
    $366.75 - $366.75
    $366.75
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    $161.37
    $161.37 - $161.37
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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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    $161.37 - $161.37
    $161.37
    $161.37 - $161.37
    $161.37
  • $295.00 - $295.00
    $295.00
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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
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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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    4" x 38" | 2,750 GPD | 100 PSI | XLE Extra-Low Energy RO Membrane | Applied Membranes

    M-T4038AXLE
    In Stock for Immediate Shipment

    4" x 38" Extra-Low Energy Reverse Osmosis Membrane | Tap or Brackish Water | 2,750 GPD at 100psi4x38 RO Membrane for Reverse Osmosis Water Treatm...

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    $400.67 - $400.67
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    $165.00
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    2.5” x 14” | 264 GPD | 150 PSI | Low Energy RO Membrane | Applied Membranes

    M-T2514ALE
    In Stock for Immediate Shipment

    2.5" x 14" Low Energy Reverse Osmosis Membrane | Tap or Brackish Water | 264 GPD at 150 PSI AMI Low Energy (Low Pressure) RO Membrane elements a...

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    $165.00 - $165.00
    $165.00
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    $165.00
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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
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    $325.00
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    $325.00

    4" x 21" | 1,148 GPD | 150 PSI | Low Energy RO Membrane | Applied Membranes

    M-T4021ALE
    In Stock for Immediate Shipment

    4" x 21" Low Energy Reverse Osmosis Membrane | Tap or Brackish Water | 1,148 GPD at 150 PSI AMI Low Energy (Low Pressure) RO Membrane elements a...

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    $325.00 - $325.00
    $325.00
    $325.00 - $325.00
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    $36.00
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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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    $36.00 - $36.00
    $36.00
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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.

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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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