The Montague 02002-8 Range Valve Knob, 2-1/8" DIA, delivers precise manual control by providing a reliable interface between the operator and the range valve assembly. With a 2-1/8-inch diameter for a comfortable grip, it transfers rotational input directly to the valve stem, enabling smooth, accurate adjustment of gas flow and heat output. Its durable construction is designed to with... https://partsfe.com/02002-8-montague-valve-knob-2-18-d