WATERRO MEMBRANE HOUSING MODEL: 4040-SS304 THREAD (300 PSI) WATERRO Membrane Housing 4040-SS304 THREAD (300 PSI) is a stainless-steel membrane housing designed for standard 4" × 40" reverse osmosis membranes. The high-quality SS304 construction provides excellent corrosion resistance and a long service life. The housing is designed to operate at a maximum working pressure of 300 PSI (20,7 Bar) and is equipped with threaded end connections for secure installation. Technical specification Parameter | Value Product | Stainless-steel RO membrane housing Model | 4040-SS304 THREAD Housing size | 4040 (4" × 40") Compatible membrane | Standard 4040 RO membrane Material | SS304 stainless steel Housing type | Threaded Maximum working pressure | 300 PSI (20,7 Bar) Connection type | Threaded Number of membranes | 1 Application | Commercial and industrial RO systems Brand | WATERRO Key advantages SS304 stainless-steel construction Designed for standard 4040 RO membranes 300 PSI maximum working pressure High corrosion resistance Threaded end design Secure leak-tight seal Long service life Suitable for RO, NF and UF systems