Check the listing for details. Industrial RO Membrane 4x40 Ultra Low Pressure Reverse Osmosis Element ULP-4040. Color: White / Steel, Condition: New. Listed at 159.99 USD. Product Description High efficiency filtration： ULP-4040 membrane element features high water production and good desalination performance. It has high removal performance for dissolved salts, TOC, and SIO2. Through the 0.0001 micron TFC membrane layer, hundreds of impurities are reduced by more than 99%, including heavy metals (fluoride, magnesium, lead, colloids, and nitrates). Ultra low pressure 4040 ulp membrane provides clean, pure and safe water for your business High Capacity： 2600 GPD ULP 4040 reverse osmosis membrane is designed to withstand the demands of industrial use, providing clean water for residential, agricultural and industrial use throughout. The large size of the housing also allows for greater flow rates, ensuring fast and efficient water treatment. With the larges.