24×24 MBD-15 Multi-Blade Balancing Damper w/ Hand Quadrant, Opposed Blade, 3V Blades

Model MBD-15 is a manual balancing damper designed to regulate the flow of air in a HVAC system. They are not intended to be used in applications as a positive shut off or for automatic control. The design incorporates heavy gauge galvanized steel construction for durability and longevity.