This 1 inch lead free automatic reseating temperature and pressure relief valve has a 9 inch thermostat and is installed directly in tank tapings. It is used in commercial applications to provide automatic temperature and pressure protection for hot water supply tanks and hot water heaters. It features a lead free construction body with NPT female inlet and NPT female outlet connections, thermo-bonded coated thermostat, tamper resistant bonnet screws, automatic reseating feature, and test lever. The temperature relief is 210 degrees and the pressure relief is 150 PSI.