2" lead free check valve. Silicon bronze valve body and poppet assembly. Furnished with buna-n O-ring, stainless steel spring, stainless steel washer, and stainless steel locknut. Check valves have a working pressure of 400 P.S.I. FPT. x FPT. Code approved in California. Type: Lead Free, Size: 2", Material: Silicone Bronze, Pressure Rating: 150 psi, Temperature Rating: 210 F