Butterfly Backdraft Damper (4 Inch)

Free ground shipping for this item Backdraft damper with lightweight blades and foam closure to eliminate noise and increase efficiency. Backdraft dampers keep cold air out when your appliance is not being used Regulates airflow within the ductwork Foamed shutter system for quiet closure Vertical or horizontal mounting, with one end crimped Dampers are available in sizes 3″ up to 24 Inch ducting. Click Here for Video Download The Spec Sheet