Description
This is a new Furnace Gas Valve. The gas valve is made by Robertshaw. It replaces the 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.  
Replaces:
91D4G3 91F21G18 91F3G18 91F3G8 91F4G8 91FM21G1

Repair Difficulty Level


Partial list of Model numbers that use this part:
Use Ctrl+F and enter your model number for a quick search.
            
            