Watts 0121437|WW0121437 - 3/4 LF53-75

This 3/4 inch pressure relief valve is used in residential applications to protect against excessive pressure on domestic storage tanks and tankless water heaters. It consists of a lead free brass body construction with 3/4 inch NPTF threaded male inlet and 1/2 inch NPTF threaded female (drain) outlet, and stainless steel spring. The pressure relief is set at 75 psi (5.2 bar).