Fantech 5ACC12RD - Roof Mount Damper 12x12
The Fantech5ACC12RD Roof Mount Damper is ideal for use with roof openings measuring 12 1/2 x 12 1/2.
The Fantech5ACC12RD Roof Mount Damper features a 2-inch galvanized steel frame with 1-inch flange. Its aluminum blades have felted edges to provide silent operation. When the ventilator is on, the blades open and when airflow stops they close. This roof mount damper has pre-punched conduit hole knock-out.