TIMER, 120V, 60 MIN, FOR KNOB USE # 22-1597, KNOB BLACK 1 15/16" DIA, 3/16" D-STEM FLAT DOWN, HAS POINTER INDICATOR ARROW. IF NEW STYLE BLACK & SILVER INDICATOR KNOB NEEDED, USE # 22-1107. POINTER TIMER KNOB[ 2" DIA ] [MOUNT .187"] [FLAT DOWN ], SET SCREW BOTTOM. HOBART HGC40 VULCAN STEAMER GCO2D, GCO4D, GCO4S, SG4C, SG4D, SG6C, SG6D, VC4GC, VC4GD, VC4GS, VC6GC, VC6GD, VC6GS, VSX10GC, VSX5G, VSX5GC, VSX7GC, VSX-24,