Vulcan Hart 411690-00001 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