The 3/4" temperature and pressure relief valve with a long shank thermostat, designed for water heaters with up to 2" thick tanks and a capacity of up to 105,000 BTU/hour. Provides fully automatic temperature and pressure relief protection for hot water storage tanks and heaters with 2" thick walls. Includes a test lever and extension thermostat for installation in the hot water outlet line or directly in the tank tapping. The temperature sensing element must be immersed in the top 6" of the tank. Features a 3/4" male inlet and 3/4" female outlet, with temperature relief set at 210°F and pressure relief at 150 psi. The wetted surface in contact with consumable water contains less than 0.25% lead by weight. ASME rated and CSA listed.