Gas Pressure Regulator Regulator Type Straight-Thru-Flow Pipe Size 3/4 in Mounting Position Upright Capacity 450 000 BtuH Max Inlet Pressure 0.5 psi Venting Vent Limiter Gas Type Natural Gas Connection Type NPT Outlet Pressure Range 3 in to 6 in Ambient Temp Range -40 Degrees to 205 Degrees F Inlet Emergency Exposure Limits 3 psi Standards ANSI Z21.18 CSA