The AllPoints Foodservice Parts & Supplies 221222 Control Knob & Dial is designed for precise temperature control in various foodservice applications. With a 2-inch outer diameter, this thermostat knob features a temperature range of 100° to 300° F, allowing for versatile cooking options. The 1/4-inch D-stem ensures easy installation and compatibility with a variety of equipment. Made from durable black plastic, this knob combines functionality with a sleek appearance, making it an essential component for maintaining optimal cooking conditions.