The AllPoints Foodservice Parts & Supplies 2281394 Control Knob & Dial is designed for precise temperature control in foodservice equipment. With a 2-1/4" outer diameter, this thermostat knob features a temperature range of 200°F to 400°F, allowing for versatile cooking options. The 3/16" D-stem ensures a secure fit for easy installation. Made from durable black plastic, this knob combines functionality with a sleek appearance, making it an essential component for maintaining optimal cooking conditions.