The AllPoints Foodservice Parts & Supplies 22-1235 Control Knob & Dial features a diameter of 2-3/16 inches, designed for precise control within a range of 150-500. This versatile knob is compatible with various models, including CCC item K-386 and ICS item A2512. It serves as a reliable replacement for Garland parts 2193485, 2522107, 3043100, and 4512141, ensuring seamless integration and functionality in your foodservice equipment.