SW30-4040 DuPont FilmTec™ 1,950 GPD at 800 PSI 4 x 40 inch Seawater Membranes

DuPont FilmTec SW30-4040 Seawater RO Membrane (1,950 GPD)

The DuPont FilmTec SW30-4040 is an industry-leading Seawater Reverse Osmosis (SWRO) membrane element designed to deliver exceptional productivity and consistent water quality for both sea-based and land-based desalination systems. Manufactured using precision, fully automated fabrication techniques, this 4-inch diameter by 40-inch long element utilizes advanced polyamide thin-film composite membrane technology. It provides a highly efficient combination of superior salt rejection and excellent flow rates, ensuring reliable performance while helping to reduce the overall energy consumption and operational footprint of small to medium commercial watermakers.

Designed to seamlessly fit standard 4-inch by 40-inch commercial pressure vessels, the SW30-4040 is engineered for resilience in high-salinity marine applications. Evaluated under stringent standard test conditions at an applied pressure of 800 PSI (with a heavy 32,000 ppm NaCl feed solution), this element produces a dependable nominal permeate flow rate of 1,950 gallons per day (GPD) while maintaining an outstanding 99.7% stabilized salt rejection rate. Rated for a maximum operating pressure of 1,200 PSI, its high-purity yield and proven durability make it an exceptional, highly reliable solution for onboard marine watermakers, compact coastal desalination rigs, and specialized high-salinity industrial water treatment systems.