The Montague 02002-8 valve knob provides a simple and reliable way to adjust and control equipment valve settings during operation. With a 2-1/8-inch diameter design, this component attaches to a compatible valve stem and allows users to manually regulate the flow of gas or other controlled media by turning the knob. It works by transferring rotational movement to the valve mechanism,... https://partsfe.ca/02002-8-montague-valve-knob-2-18-d