Gas Pressure Regulator, Regulator Type Straight-Thru-Flow, Pipe Size 1 1/4 in, Mounting Position Upright, Capacity 900,000 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 5 psi, Standards ANSI Z21.18, CSA