Gas Plug G0101-DBL-SS Gas Outlet Box with Double 1/2-Inch Inlet, 3/8-Inch Outlet and Stainless Steel Enclosure 1/2" NPT Inlet, 3/8" Quick Disconnect, Male Plugs Included 60,000 BTU NG each side/90,000 BTU LP each side Thermal valve shuts off gas flow in conditions of 300-Degree Fahrenheit or more Clean compact design conceals unsightly pipes and valves Complete with adjustable standoffs for siding installation