Watts 100XL-150 Relief Valve, 3/4 in, MNPT x FNPT, Brass Body

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. Features a bronze body with NPT male inlet and NPT female outlet connections, unique thermostat with special thermo-bonded coating and a test lever. ASME rated and CSA listed. Temperature relief is 210 deg F (99 deg C), Pressure relief range is 75 to 150psi (5.2 to 10.3 bar).