The AllPoints Foodservice Parts & Supplies 221313 is a high-quality thermostat knob designed for reliable performance in foodservice equipment. With a diameter of 2-1/4 inches, this knob features an Off 0-10 scale, allowing for precise temperature control. It mounts with a .187-inch shaft and is designed for flat position up installation. This knob is compatible with Toastmaster warmers, ensuring seamless integration and functionality in your kitchen setup. Enhance your equipment's efficiency and maintain optimal heating with this durable and easy-to-use thermostat knob.