9-inch Starting Collar without Damper, engineered to kickstart airflow with precision and reliability. Its versatile construction accommodates various duct sizes and configurations, making it ideal for both residential and commercial applications. Experience the difference that quality craftsmanship and innovative design can make in your HVAC system. Invest the 16-inch Starting Collar without Damper today and enjoy improved airflow performance, enhanced comfort, and energy savings for years to come.