This 3/4 inch temperature and pressure relief valve is designed to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 105,000 BTU per hour. It features a cast bronze body with 4.75 inch long shank, NPT male inlet and 3/4 inch NPT female outlet connections, unique thermostat with special thermo-bonded coating, tamper resistant bonnet screws, automatic reseating feature, and test lever. The temperature relief is 210 degrees F (99 degrees C) and the pressure relief is set at 150 psi (10.3 bar).