The AllPoints Foodservice Parts & Supplies 8010558 Air Shutter is designed for optimal airflow control in your foodservice equipment. Featuring an open top design, this air shutter has an outer diameter of 2-1/2 inches and a 1/2 inch inlet, ensuring compatibility with various systems. It comes complete with a screw and washer for easy installation. This durable component enhances efficiency by regulating air intake, making it an essential part for maintaining peak performance in your appliances.