75DB-DY 1-1/2 Hour Dynamic Thin Pan Fire Damper

ALSO CALLED LOW LEAKAGE DAMPER. THIS DAMPER IS USED TO CONTROL AIRFLOW AND CONSIDERED HEAVY DUTY. BACK DRAFT DAMPERS ALLOW AIR TO PASS IN ONE DIRECTION AND RESTRICTS FLOW IN THE OPPOSITE DIRECTION.
STANDARD FINISH IS ”ALUMINUM MILL”