Exhaust Shutter With Adapter Plate

Exhaust shutters also known as backdraft dampers are used for venting through an exterior wall. The shutter automatically opens when air flow is present and closes when air flow has stopped. Prevents wind, rain, and animals from entering the ductwork. The preinstalled adapter plate allows for the shutter to be bolted directly to our round ductwork and tube axial fans. Constructed from a galvanized steel housing and aluminum louvers for superior corrosion resistance. Available in a wide range of standard sizes.