The Southbend SOU1192520 Burner Valve Knob Assembly provides convenient manual control of the burner valve in compatible commercial cooking equipment. Designed with a 2-1/2-inch outside diameter and a 1/4-inch D-shaped stem with a flat-down orientation, it fits the corresponding valve shaft to allow the operator to turn the control as needed. This movement helps adjust the burner valv... https://partsfe.ca/sou1192520-southbend-knob-assembly/2-SOU1192520.html