This is a brand new Rheem/Ruud/Weather King/Corsaire Furnace LP Gas Valve Conversion Kit. This kit converts the furnace from Natural Gas to LP. It replaces the old part numbers listed below.
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.
VR8305Q4120 60-42570-01