Famco BD6 Butterfly Backdraft Damper, 6 in Dia, 6 in L, Steel, Galvanized

The Famco BD butterfly backdraft damper is used as a backdraft damper for heat exchangers, exhaust systems, solar heating systems and other intake or exhaust applications where a powered damper is not needed, this product is not rated for use with a dryer. This damper works in both horizontal or vertical positions and the foam seal provides minimal air leakage. Due to its unique design and aluminum blades, it opens easily with normal airflow and closes with gravity. Quality constructed from heavy-duty galvanized steel, sizes 4 to 6 in are 28 ga, sizes 8 to 12 in are 26 ga, size 14 in is 24 ga and sizes 16 to 20 in are 22 ga. The Famco BD butterfly backdraft damper comes in sizes ranging from 4 to 20 in. The Famco BD butterfly backdraft damper is manufactured by Famco in the US and comes with a 1 year warranty against product defects and workmanship.