WATERRO END CAP FOR MEMBRANE HOUSING 4040-SS304 THREAD (300 PSI) The WATERRO end cap for the 4040-SS304 THREAD membrane housing (300 PSI) is a replacement end component designed for 4" × 40" stainless steel reverse osmosis membrane housings. It ensures a secure seal and reliable system operation. The end cap is compatible with 4040 SS304 THREAD membrane housings designed to operate at up to 300 PSI (20.7 Bar). Technical specification Parameter | Value Product | End cap for RO membrane housing Compatible housing | 4040-SS304 THREAD Compatible membrane size | 4040 (4" × 40") Maximum operating pressure | 300 PSI (20.7 Bar) Housing type | Threaded Application | Commercial and industrial RO systems Function | Membrane housing end seal Brand | WATERRO Key advantages - Original replacement part - Designed for 4040 SS304 THREAD housings - Operating pressure up to 300 PSI - Secure watertight seal - Easy replacement - Suitable for commercial and industrial RO systems