This 1 inch bronze automatic reseating temperature and pressure relief valve with a 6 inch thermostat is installed directly in tank tapings and is used in commercial applications to provide automatic temperature and pressure protection for hot water supply tanks and hot water heaters. It features a bronze body with NPT female inlet and NPT female outlet connections, thermo-bonded coated thermostat, automatic reseating feature, tamper resistant bonnet screws, and test lever. The temperature relief is 210 degrees and the pressure relief is 100 psi.