4-inch-ro-membranes

4 inch RO Membranes

4 inch reverse osmosis membranes are designed for commercial and light industrial applications, offering high efficiency and excellent salt rejection. Available in 4" x 21" and 4" x 40" sizes, and in different types to suit all applications, including brackish water, seawater, and low-pressure systems.

4 Inch Reverse Osmosis Membranes For Brackish Water

Our brackish water 4040 4×40 inch RO Membranes provide high product water flows and salt rejection at high salinity inlet water (up to 8,000 ppm NaCl Salinity).
Brackish water RO Membranes are the best balance of flow and salt rejection.
Working pressure between 175 and 260 PSI (12 – 18 bar).

-8%

LG RO Membrane - BW 4040 R

$419.00

$419.00 ~~$460.00~~

LG BW 4040 R Membrane, 4 inch x 40 inch Brackish Water Reverse Osmosis Membrane...

-8%

Revese Osmosis Membrane Vontron LP21-4040

$365.00

$365.00 ~~$400.00~~

Brackish Water Reverse Osmosis Membrane - Vontron LP21-4040, 4 inch x 40 inch 4”x40” 4040...

-13%

Hydranautics CPA5-LD-4040 Reverse Osmosis Membrane

$518.00

$518.00 ~~$600.00~~

Hydranautics CPA5-LD-4040, 4 inch x 40 inch Brackish Water RO Membrane 4”x40” Hi Rejection Brackish...

-10%

FilmTec BW30 PRO-4040 - 4" x 40" Brackish Water Membrane

$520.00

$520.00 ~~$580.00~~

FilmTec BW30 PRO 4040 Membrane, 4 inch x 40 inch Reverse Osmosis Membrane Fouling resistant...

Low Pressure Reverse Osmosis 4 Inch Membranes

4″ Low Energy, Energy Saving (ES), and Ultra Low Pressure (ULP) membrane elements are designed for low to moderate salinity feed water applications (with inlet TDS up to 2,000 ppm NaCl). Low-pressure membrane elements are rated for a test working pressure of 150 PSI (10.3 bar).
4 Inch Extra Low energy Reverse Osmosis Membranes (4″ Extreme Low Pressure) They are designed for low salinity water to operate at ultra low pressure. These membrane elements are based around 100-110 PSI (around 7 bar) test working pressure, please check each membrane details below
Available Sizes: 4″ x 40″ and 4″ x 21″

-8%

LG RO Membrane BW 4040 ES

$419.00

$419.00 ~~$460.00~~

LG Reverse Osmosis Membrane, BW 4040 ES Element, 4”x40” Low Pressure Brackish Water Membrane. 2500...

-8%

Vontron ULP21-4040 RO Membrane

$365.00

$365.00 ~~$400.00~~

Commercial 4 inch x 40 inch Low Pressure Reverse Osmosis Membrane 4”x40” 4040 Low Pressure...

-8%

Vontron ULP11-4040 Hi Flow

$365.00

$365.00 ~~$400.00~~

Vontron ULP11-4040, 4 inch x 40 inch High Flow & Low Pressure Reverse Osmosis Membrane 4”x40” Hi Flow...

-8%

Vontron XLP11-4040

$365.00

$365.00 ~~$400.00~~

Vontron XLP11-4040, 4 inch x 40 inch Extremely Low Pressure Reverse Osmosis Membrane 4”x40” Extremely Low Pressure...

-23%

Vontron ULP21-4021 Reverse Osmosis Membrane

$269.00

$269.00 ~~$350.00~~

Vontron ULP21-4021, 4 inch x 21 inch Low Pressure Reverse Osmosis Membrane 4”x21” Low Energy...

4 Inch Ultra Low Pressure Reverse Osmosis Membranes (4″ Extreme Low Pressure)

They are designed for low salinity water to operate at ultra low pressure (ULP). The high permeability results in up to 40% lower energy consumption compared to standard elements.
These membrane elements are based around 100-110 PSI (around 7 bar) test working pressure, please check each membrane details below