The Perlick 3820-12 is a dual air shaft designed for air-cooled beer systems, featuring a 12-foot section that ensures optimal temperature control for your draft beer. This component is essential for maintaining the quality and freshness of your beverage, providing efficient airflow to keep your beer at the perfect serving temperature. Please note that beverage lines are not included. Ideal for both commercial and home brewing setups, the Perlick 3820-12 enhances your draft system's performance and reliability.