300 GPD at 800 PSI 2.5 x 21 inch 99.7% Rejection Seawater Membranes

HCTI 2.5" x 21" Seawater RO Membrane (300 GPD)

For marine vessels, offshore platforms, and coastal desalination systems requiring a compact and highly reliable watermaker component, this American-made seawater reverse osmosis element delivers exceptional saltwater purification. Proudly manufactured in the United States by Hydrocomponents & Technologies Inc. (HCTI), this professional-grade membrane utilizes advanced thin-film composite (TFC) technology to effectively remove high levels of salinity, dissolved solids, and boron from harsh seawater feeds.

Designed to seamlessly fit standard 2.5-inch by 21-inch commercial pressure vessels, this robust HCTI membrane is specifically built to withstand the rigorous demands of maritime environments. Evaluated under stringent standard test conditions at an applied pressure of 800 PSI (with a heavy 32,000 ppm TDS feed solution), it produces a dependable nominal permeate flow rate of 300 gallons per day (GPD) while maintaining an outstanding 99.70% nominal salt rejection rate. Its high-purity yield and space-saving physical profile make it an exceptional, highly reliable solution for onboard marine watermakers, compact coastal desalination rigs, and specialized high-salinity industrial water treatment systems.