The Bertazzoni 4010113 Range Gas Valve Knob provides a direct interface for operating the range’s gas valve and adjusting burner settings. This knob fits onto the valve stem and transfers the user’s turning motion to the valve mechanism, allowing gas flow to be regulated according to the selected setting. Proper operation supports consistent burner adjustment and provides a clear way ... https://www.hnkparts.com/4010113-bertazzoni-gas-valve-knob