Filmtec (SW30-4021) Seawater Membrane 800 GPD 4" X 21" Class_Commercial Verify your existing membrane size

Verify your existing membrane size before ordering

and between filter stages to detect clogging or pressure drop

Automated manufacturing ensures consistent performance element to element

Replace your probe when you notice slow response times

Filmtec (SW30-4021) Seawater Membrane 800 GPD 4" X 21" Class_Commercial Verify your existing membrane sizeFilmtec SW30 4021 Seawater Membrane 800 GPD High Flow Seawater Reverse Osmosis Element 4" x 21" commercial seawater membrane delivering 99. 4% salt rejection at 800 psi for marine and land based desalination systems 800 GPD Flow Rate 99. 4% Salt Rejection 33 ft Active Area 800 PSI Rated The Filmtec SW30 4021 seawater membrane is engineered for high salinity applications where consistent performance matters. With 800 gallons per day capacity and 99. 4%