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Reverse Osmosis Membranes

Reverse Osmosis Membranes Layer Diagram
Click to zoom in on reverse osmosis membrane diagram

What is a Thin Film Composite Membrane?

Source: Wikipedia

Thin film composite membranes (TFC or TFM) are semi permeable membranes manufactured principally for use in water purification or water desalination systems. They also have use in chemical applications such as batteries and fuel cells.

Essentially, a TFC material is a molecular sieve constructed in the form of a film from two or more layered materials. Membranes used in reverse osmosis are typically made out of polyimide, chosen primarily for its permeability to water and relative impermeability to various dissolved impurities including salt ions and other small, unfilterable molecules.

View a chart of particle size removal range by filtration for thin-film composite membranes.

These filters are used in Reverse Osmosis Systems. Read How Reverse Osmosis Works to learn more.


Pentair Reverse Osmosis Membranes - Residential

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Pentair 24 GPD Thin Layer Composite Reverse Osmosis Membrane
NSF® Certified Pentair 24 GPD Thin Layer Composite Reverse Osmosis Membrane
$36.00
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Pentair 36 GPD Thin Layer Composite Reverse Osmosis Membrane
NSF® Certified Pentair 36 GPD Thin Layer Composite Reverse Osmosis Membrane
$38.00
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Pentair 50 GPD Thin Layer Composite Reverse Osmosis Membrane
NSF® Certified Pentair 50 GPD Thin Layer Composite Reverse Osmosis Membrane
$38.00
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Pentair 75 GPD Thin Layer Composite Reverse Osmosis Membrane
NSF® Certified Pentair 75 GPD Thin Layer Composite Reverse Osmosis Membrane
$41.00
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Pentair 100 GPD Thin Layer Composite Reverse Osmosis Membrane
NSF® Certified Pentair 100 GPD Thin Layer Composite Reverse Osmosis Membrane
$44.00
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CSM Reverse Osmosis Membranes - Residential

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CSM® 24/25 GPD Thin Film Composite Membrane
NSF® Certified CSM® 24/25 GPD Thin Film Composite Membrane
$42.00
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CSM® 35/36 GPD Thin Film Composite Membrane
NSF® Certified CSM® 35/36 GPD Thin Film Composite Membrane
$42.00
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CSM® 50 GPD Thin Film Composite Membrane
NSF® Certified CSM® 50 GPD Thin Film Composite Membrane
$44.00
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CSM® 60 GPD Thin Film Composite Membrane
NSF® Certified CSM® 60 GPD Thin Film Composite Membrane
$46.00
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CSM® 75/80 GPD Thin Film Composite Membrane
NSF® Certified CSM® 75/80 GPD Thin Film Composite Membrane
$46.00
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CSM® 100 GPD Thin Film Composite Membrane
NSF® Certified CSM® 100 GPD Thin Film Composite Membrane
$58.00
QTY:
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CSM® 50 GPD @ 20psi, Thin Film Composite Membrane - Low Pressure Membrane
NSF® Certified CSM® 50 GPD @ 20psi, Thin Film Composite Membrane - Low Pressure Membrane
$65.00
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GE Reverse Osmosis Membranes - Residential

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GE Osmonics 18 GPD Residential Thin Film Membrane
NSF® Certified GE Osmonics 18 GPD Residential Thin Film Membrane
$31.00
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GE Osmonics 24 GPD Residential Thin Film Membrane
NSF® Certified GE Osmonics 24 GPD Residential Thin Film Membrane
$40.00
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GE Osmonics 36 GPD Residential Thin Film Membrane
NSF® Certified GE Osmonics 36 GPD Residential Thin Film Membrane
$40.00
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GE Osmonics 50 GPD Residential Thin Film Membrane
NSF® Certified GE Osmonics 50 GPD Residential Thin Film Membrane
$40.00
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GE Osmonics 75 GPD Residential Thin Film Membrane
NSF® Certified GE Osmonics 75 GPD Residential Thin Film Membrane
$43.00
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GE Osmonics 100 GPD Residential Thin Film Membrane
NSF® Certified GE Osmonics 100 GPD Residential Thin Film Membrane
$46.00
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Dow Filmtec Reverse Osmosis Membranes - Residential

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Dow Filmtec™ 24 GPD Thin Film Composite Dry Membrane
Made in the United States NSF® Certified Dow Filmtec™ 24 GPD Thin Film Composite Dry Membrane
$37.00
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Dow Filmtec™ 36 GPD Thin Film Composite Dry Membrane
Made in the United States NSF® Certified Dow Filmtec™ 36 GPD Thin Film Composite Dry Membrane
$42.00
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Dow Filmtec™ 50 GPD Thin Film Composite Dry Membrane
Made in the United States NSF® Certified Dow Filmtec™ 50 GPD Thin Film Composite Dry Membrane
$42.00
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Dow Filmtec™ 75 GPD Thin Film Composite Dry Membrane
Made in the United States NSF® Certified Dow Filmtec™ 75 GPD Thin Film Composite Dry Membrane
$42.00
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Dow Filmtec™ 100 GPD Thin Film Composite Dry Membrane
Made in the United States NSF® Certified Dow Filmtec™ 100 GPD Thin Film Composite Dry Membrane
$48.00
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Hydrotech Dry Reverse Osmosis Membranes

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Hydrotech® Reverse Osmosis Membrane, 9 GPD Dry
Hydrotech® Reverse Osmosis Membrane, 9 GPD Dry
$60.00
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Hydrotech® Reverse Osmosis Membrane, 25 GPD Dry
Hydrotech® Reverse Osmosis Membrane, 25 GPD Dry
$75.00
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Hydrotech® Reverse Osmosis Membrane, 50 GPD Dry
Hydrotech® Reverse Osmosis Membrane, 50 GPD Dry
$80.00
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Hydrotech® Reverse Osmosis Membrane, 75 GPD Dry
Hydrotech® Reverse Osmosis Membrane, 75 GPD Dry
$85.00
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Hydrotech TFC Reverse Osmosis Membranes

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Hydrotech® Reverse Osmosis Membrane, 15 GPD TFC
Hydrotech® Reverse Osmosis Membrane, 15 GPD TFC
$65.00
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Hydrotech® Reverse Osmosis Membrane, 35 GPD TFC
Hydrotech® Reverse Osmosis Membrane, 35 GPD TFC
$80.00
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Hydrotech® Reverse Osmosis Membrane, 45 GPD TFC
Hydrotech® Reverse Osmosis Membrane, 45 GPD TFC
$90.00
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Hydrotech CTA Reverse Osmosis Membranes

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Hydrotech® Reverse Osmosis Membrane, 9 GPD CTA
Hydrotech® Reverse Osmosis Membrane, 9 GPD CTA
$55.00
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Hydrotech® Reverse Osmosis Membrane, 15 GPD CTA
Hydrotech® Reverse Osmosis Membrane, 15 GPD CTA
$65.00
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Dow Filmtec Commercial Reverse Osmosis Membranes

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Dow Filmtec™ 40" x 4", 2,800 GPD Commercial High Rejection Reverse Osmosis Membrane
Made in the United States NSF® Certified Dow Filmtec™ 40" x 4", 2,800 GPD Commercial High Rejection Reverse Osmosis Membrane
$625.00
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Dow Filmtec Commercial Reverse Osmosis Membranes for Tap Water

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Dow Filmtec™ 14" x 2-1/2", 170 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 14" x 2-1/2", 170 GPD Commercial Reverse Osmosis Membrane for Tap Water
$157.00
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Dow Filmtec™ 21" x 2-1/2", 300 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 21" x 2-1/2", 300 GPD Commercial Reverse Osmosis Membrane for Tap Water
$207.00
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Dow Filmtec™ 40" x 2-1/2", 660 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 40" x 2-1/2", 660 GPD Commercial Reverse Osmosis Membrane for Tap Water
$228.00
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Dow Filmtec™ 40" x 2-1/2", 480 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 40" x 2-1/2", 480 GPD Commercial Reverse Osmosis Membrane for Tap Water
$303.00
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Dow Filmtec™ 40" x 4", 2,200 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 40" x 4", 2,200 GPD Commercial Reverse Osmosis Membrane for Tap Water
$307.00
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Dow Filmtec™ 21" x 4", 900 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 21" x 4", 900 GPD Commercial Reverse Osmosis Membrane for Tap Water
$322.00
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Dow Filmtec Commercial Reverse Osmosis Membranes for Brackish Water

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Dow Filmtec™ 40" x 2-1/2", 850 GPD Reverse Osmosis Membrane for Brackish Water
Made in the United States NSF® Certified Dow Filmtec™ 40" x 2-1/2", 850 GPD Reverse Osmosis Membrane for Brackish Water
$266.00
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Dow Filmtec™ 40" x 4", 2,400 GPD Reverse Osmosis Membrane for Brackish Water
Made in the United States NSF® Certified Dow Filmtec™ 40" x 4", 2,400 GPD Reverse Osmosis Membrane for Brackish Water
$315.00
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Dow Filmtec™ 40" x 8", 9,500 GPD Reverse Osmosis Membrane for Brackish Water
Made in the United States NSF® Certified Dow Filmtec™ 40" x 8", 9,500 GPD Reverse Osmosis Membrane for Brackish Water
$834.00
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Dow Filmtec™ 40" x 8", 10,500 GPD Reverse Osmosis Membrane for Brackish Water
Made in the United States NSF® Certified Dow Filmtec™ 40" x 8", 10,500 GPD Reverse Osmosis Membrane for Brackish Water
$877.00
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Dow Filmtec™ 11,500 GPD Reverse Osmosis Membrane for Brackish Water
Made in the United States NSF® Certified Dow Filmtec™ 11,500 GPD Reverse Osmosis Membrane for Brackish Water
$1,719.00
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Dow Filmtec Commercial Reverse Osmosis Membranes for Low Energy

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Dow Filmtec™ 21" x 2-1/2", 365 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 21" x 2-1/2", 365 GPD Commercial Reverse Osmosis Membrane for Tap Water
$207.00
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Dow Filmtec™ 40" x 2-1/2", 850 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 40" x 2-1/2", 850 GPD Commercial Reverse Osmosis Membrane for Tap Water
$207.00
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Dow Filmtec™ 40" x 4", 2,600 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 40" x 4", 2,600 GPD Commercial Reverse Osmosis Membrane for Tap Water
$323.00
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Dow Filmtec™ 21" x 4", 1,025 GPD Commercial Reverse Osmosis Membrane for Tap Water
Made in the United States NSF® Certified Dow Filmtec™ 21" x 4", 1,025 GPD Commercial Reverse Osmosis Membrane for Tap Water
$340.00
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Dow Filmtec™ 2,300 GPD Reverse Osmosis Membrane for Brackish Water (Low Energy)
Made in the United States NSF® Certified Dow Filmtec™ 2,300 GPD Reverse Osmosis Membrane for Brackish Water (Low Energy)
$342.00
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Dow Filmtec Commercial Reverse Osmosis Membranes for Nano Filtration

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Dow Filmtec™ 850 GPD, 40" x 2-1/2" Nanofiltration Membrane for Commercial Applications
Made in the United States NSF® Certified Dow Filmtec™ 850 GPD, 40" x 2-1/2" Nanofiltration Membrane for Commercial Applications
$365.00
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Dow Filmtec™ 520 GPD, 40" x 2-1/2" Nanofiltration Membrane for Commercial Applications
Made in the United States NSF® Certified Dow Filmtec™ 520 GPD, 40" x 2-1/2" Nanofiltration Membrane for Commercial Applications
$365.00
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Dow Filmtec™ 2,700 GPD, 40" x 4" Nanofiltration Membrane for Commercial Applications
Made in the United States NSF® Certified Dow Filmtec™ 2,700 GPD, 40" x 4" Nanofiltration Membrane for Commercial Applications
$480.00
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Dow Filmtec™ 1,500 GPD, 40" x 4" Nanofiltration Membrane for Commercial Applications
Made in the United States NSF® Certified Dow Filmtec™ 1,500 GPD, 40" x 4" Nanofiltration Membrane for Commercial Applications
$480.00
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Dow Filmtec™ 6,800 GPD, 40" x 8" Nanofiltration Membrane for Commercial Applications
Made in the United States NSF® Certified Dow Filmtec™ 6,800 GPD, 40" x 8" Nanofiltration Membrane for Commercial Applications
$3,125.00
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Dow Filmtec™ 7,500 GPD, 40" x 8" Nanofiltration Membrane for Commercial Applications
Made in the United States NSF® Certified Dow Filmtec™ 7,500 GPD, 40" x 8" Nanofiltration Membrane for Commercial Applications
$1,150.00
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Dow Filmtec Commercial Reverse Osmosis Membranes for Sea Water

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Dow Filmtec™ 150 GPD Reverse Osmosis Membrane for Seawater
Made in the United States NSF® Certified Dow Filmtec™ 150 GPD Reverse Osmosis Membrane for Seawater
$242.00
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Dow Filmtec™ 300 GPD Reverse Osmosis Membrane for Seawater
Made in the United States NSF® Certified Dow Filmtec™ 300 GPD Reverse Osmosis Membrane for Seawater
$242.00
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Dow Filmtec™ 700 GPD Reverse Osmosis Membrane for Seawater
Made in the United States NSF® Certified Dow Filmtec™ 700 GPD Reverse Osmosis Membrane for Seawater
$259.00
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Dow Filmtec™ 800 GPD Reverse Osmosis Membrane for Seawater
Made in the United States NSF® Certified Dow Filmtec™ 800 GPD Reverse Osmosis Membrane for Seawater
$426.00
QTY:
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Dow Filmtec™ 1,950 GPD Reverse Osmosis Membrane for Seawater
Made in the United States NSF® Certified Dow Filmtec™ 1,950 GPD Reverse Osmosis Membrane for Seawater
$562.00
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Dow Filmtec™ 6,000 GPD Reverse Osmosis Membrane for Seawater
Made in the United States NSF® Certified Dow Filmtec™ 6,000 GPD Reverse Osmosis Membrane for Seawater
$1,280.00
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Dow Filmtec™ 4,000 GPD Reverse Osmosis Membrane for Seawater
Made in the United States NSF® Certified Dow Filmtec™ 4,000 GPD Reverse Osmosis Membrane for Seawater
$2,230.00
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