The Air King BDD series backdraft dampers features a steel ring with an aluminum butterfly style spring loaded damper that provides an excellent seal to the ducting. The dampers mount inline with the exhaust fan ducting and can be used in almost any round ducting application that required a backdraft damper. Available in 4″ round, 6″ round, or 8″ round sizes.
Model: BDD4R
4 inch round metal backdraft damper.
Use in situations when an additional level of backdraft protection is required.
Model: BDD6R
6 inch round metal backdraft damper.
Use in situations when an additional level of backdraft protection is required.
Model: BDD8R
8 inch round metal backdraft damper.
Use in situations when an additional level of backdraft protection is required.
