12" Backdraft Damper
Made of galvanized steel, this 12" damper prevent air leakage into your fan setup. They are easy to install, fit directly onto the ducting, and prevent a backdraft of air when the fans are switched off.
12" Backdraft Damper
Made of galvanized steel, this 12" damper prevent air leakage into your fan setup. They are easy to install, fit directly onto the ducting, and prevent a backdraft of air when the fans are switched off.