The AllPoints Foodservice Parts & Supplies 2201240 Air Mixer Shutter is designed for optimal performance in broiler applications. Featuring a 7/16" center hole, this shutter is specifically engineered to fit a 1-1/4" diameter air mixing chamber. Its durable construction ensures reliable operation, enhancing air mixing efficiency for consistent cooking results. Ideal for maintaining precise temperature control, this accessory is essential for any professional kitchen looking to improve broiler functionality.