Forged brass. Chrome-plated ball. PTFE (polytetrafluoroethylene) seats. Blowout proof stem. Vinyl-grip and vibration proof locknut. Temperature range: -20 F (degree Fahrenheit) to 30 F. (Consult Jones Stephens for pressure rating when temperature is above 210 F). AGA (American Gas Association) certified for use with natural, manufactured, mixed, LP (liquified petroleum) gas and LP gas/air mixtures up to 2 psi (pounds per square inch). Complies with federal specification WW-V-35B, Type II, Style 3. Threaded ends comply with ANSI (American National Standards Institute) B2.1. Import. Manufactured to include no more than 0.25% weighted average lead content on wetted surfaces.