RED PLASTIC KNOB, TURNS CLOCKWISE[ 2-7/8″ DIA ][ OFF-HI-MED-LO] [MOUNT.210″] [FLAT UP ]USED ON ROTARY SWITCH KIT 42-1296 (HAS 2 FLATS)VULCANBROILERVB-2-1, VB-2S, VTMB-(2,22).OVENCONVECTION OVENS WHERE APPLICABLE.RANGESERIES: VEX, VO, VR, VS, VTM, VTMX.,