Master Flow 12 in. Damper

Master Flow Dampers balance and adjust the air flow in individual runs of round pipe in HVAC systems. The dampers include hardware that makes it easy to install into existing round pipe as well. They are constructed of galvanized steel for durability. Only one wing nut is required for installation.|Galvanized steel construction|Spring-loaded hardware for easy mounting into existing round pipe|Helps to control airflow in a run of pipe|Always insulate ductwork for greater system efficiency and comfort