This is an This is a LP 2 Stage Gas Valve Conversion Kit for Goodman Amana Janitrol Gas valves. The Goodman part number is LPM-06. Thanks for looking and good luck!
The gas valve is a low voltage control (usually 24 VAC) that allow gas into the combustion chamber. It is also an adjustable regulator that insures proper gas pressure for combustion. They have a manual shut off.