Filmtec (SW30-4040) Seawater Membrane 1,950 GPD 4" X 40" Filmtec (XLE-4021) Low Energy Membrane 1025 GPD 4" X 21" Unscrew the 20" Big Blue

Unscrew the 20" Big Blue housing sump

flush the system for 2-3 minutes—the post-filter will catch most fines

5V button cell batteries (included) Dimensions 5

This housing accepts any standard 20" x 2

Two pre-carbon stages plus a GAC polishing filter handle chlorine

Filmtec (SW30-4040) Seawater Membrane 1,950 GPD 4" X 40" Filmtec (XLE-4021) Low Energy Membrane 1025 GPD 4" X 21" Unscrew the 20" Big BlueFilmtec SW30 4040 Seawater RO Membrane for High Salinity Desalination 1,950 GPD commercial seawater reverse osmosis element engineered for consistent performance in demanding marine and coastal applications 99. 4% Salt Rejection 4" 40" Element 800 PSI Rated 80 ft Active Area The Filmtec SW30 4040 seawater membrane delivers 1,950 gallons per day from feedwater containing 32,000 ppm total dissolved solids, making it the workhorse element for based and