Campco Temperature and Pressure Relief Valve, 3/4 in, NPT End Connection, 150 psi, Brass Body, Stainless Steel Spring, 210 deg F, 1-1/2 in Length x 3.63 in Width x 11.38 in Height, Brass/Antique Brass, Standards: ANSI Z21.22, AGA Certified, For Use With Water Heaters