The AllPoints Foodservice Parts & Supplies 22-1523 Control Knob & Dial is designed for precision temperature control on Vulcan grill series HEG. This dial features an OFF-100°-450°F range, allowing for versatile cooking options. It serves as a direct replacement for Vulcan Hart part number 824321, ensuring compatibility and ease of installation. Enhance your grilling experience with this reliable and durable control knob, tailored for optimal performance in commercial kitchens.