300 GPD Watermaker Membrane 2.5 x 21 inch

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

Engineered specifically for onboard marine watermakers, this American-made seawater reverse osmosis element delivers exceptional saltwater purification for sailboats, cruisers, and luxury yachts. 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 offshore seawater feeds.

Designed to seamlessly fit standard 2.5-inch by 21-inch commercial pressure vessels commonly found in compact marine desalination systems, this robust HCTI membrane is built to withstand the rigorous demands of extended ocean voyages. 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 the premier, highly reliable watermaker solution for vessel owners demanding pristine, potable water while at sea.