This temperature and pressure relief valve has a 3/4-inch MNPT inlet and 3/4-inch FNPT outlet, with a factory-set 150 psi and is suitable up to 210 Degrees F. Its thermostat length is 1 9/16 inches, shank length is 1 3/16 inches, and its bronze body measures 1 3/32 x 2 5/8 inches. The spring is stainless steel and the valve is auto re-seating. It meets CSA 4.4 standards.