150 PSI. 3/4" connection. 2-1/4" element extension. Extended length body. For protection of water heaters and storage tanks. Automatic reseating. 210 deg. temperature relief, starts to open at 200 deg. "White Coat":thermal element coating to isolate mineral buildup. AGA approved. ASME and CSA listed. 125 Lb. PSI. 210 Deg. temperature relief. Starts to open at 200 Deg. Element extension length 1-7/16". 15000 BTU rating/hr. AGA approved. ASME listed & rated.