Camco USA 40055 Water Pressure Regulator, 3/4 in ID, Female x Male, 40 to 50 psi Pressure, BrassCamco brass water pressure regulator helps to protect the RV and boat plumbing and hoses from damage caused by high pressure city water. Reduce water pressure to a safe, consistent 40 to 50 psi of operational pressure. Protects appliances, plumbing fixtures and prevents hose failure, to help prolong equipment life. Female garden hose (3 4 to 11 1 2 NH) x Male garden hose (3 4 to 11 1 2 NH). For outdoor use only. Unit: EA UPC: 014717400558 Model