Chrome-plated brass ball and stem. 40 to 194 degree Fahrenheit temperature range, full port, PTFE seat and packing. Lead Free Brass. SA certified to 1/2 PSI, CSA certified to ASME B16.33(5G), B16.44 (125G), threaded ends comply with ANSI B1.20.1, IAMPO IGC 157 certified, IAPMO listed cUPC, certified to NSF 61.