Temperature Controll Board, Ncc, W/Wire Harness ( Used On, Sg4 Units Only ) And Installation Instructions~, For Knob Use, Ap# 22-1107, Fits Vulcan Hart Models~, Dec5, Eco2D, Eco4D, Eco6D, Gco2D, Hec20, Hec5, Hec5X, Hgc20, Sg4, Sg44, Sg4C, Sg4D, Sg6, Sg66, Sg6D, Vc3Ed, Vc44Gd, Vc4Ec, Vc4Ed, Vc4Es, Vc4Gd, Vc4Gs, Vc6Ec, Vc6Ed, Vc6Es, Vc6Gd, Vc6Gs, Vulcan Hart,