Watts 3/4 in. MNPT Brass Temperature and Pressure Relief Valve 3/4 in. FNPT 1 pk

LFL100XL Lead Free Extended Shank Temperature and Pressure Relief Valve. Used in water heater and hot water storage tank applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 105,000 BTU/hr. They feature an extended shank for installation on water heaters with extra thick insulation as well as a bronze body with NPT male inlet and NPT female outlet connections, unique thermostat with special thermo-bonded coating and a test lever. Suitable for water heaters with up to 2 in. (51mm) of insulation.