Watts 3/4-100XL8-150/210 Automatic Temperature & Pressure Relief Valve, 3/4" BF20 the solid die cast iron

the solid die cast iron pulleys will make any power transfer system run smoother & quieter

UV rays and salt

Superior moisture resistance

For 2-1/2 lb axes

Fully rolled top for rigidity and safety

Watts 3/4-100XL8-150/210 Automatic Temperature & Pressure Relief Valve, 3/4" BF20 the solid die cast ironProvides fully automatic temperature & pressure relief protection for hot water storage tanks & heaters up to 105,000 BTU hour. Comes with test lever & extension thermostat for installation in the hot water outlet line or directly in the tank tapping. Temperature sensing element must be immersed in the water within the top 6" of the tank. 3 4" 8" thermostat For water heaters up to 105,000 BTU Provides fully automatic temperature & pressure relief