The AllPoints Foodservice Parts & Supplies 221409 Control Knob & Dial is designed for precise temperature control in foodservice equipment. This thermostat knob features a 2-inch outer diameter and a .187-inch D-stem, ensuring compatibility with a variety of appliances. Made from durable black plastic, it offers a reliable grip and long-lasting performance. Ideal for replacing worn or damaged knobs, this component enhances the functionality of your equipment, allowing for accurate temperature adjustments.