The complete case includes : *ABS enclosure with splash-proof cover. *A pressure reducer which accepts a maximum inlet pressure of 7.5 bar (90 PSI) to deliver a working pressure of 2.5 bar (30 PSI), compatible with most on-board equipment. *A non-return valve. *A male quick connector for connection using a simple garden hose. *Connection to on-board network via 3/4" male thread.