Made of galvanized steel, these dampers prevent air leakage into your fan setup. They are easy to install, fit directly onto the ducting, and prevent a back draft of air when the fans are switched off.
- Tech Specs
Brand Active Air SKU ACBD4 Weight (lb.) 0.46 Lead Time Ships in 1-2 Days Length (in.) 4.2 Width (in.) 4.2 Height (in.) 2.5 UPC 638104007832 Prop 65 No UL Listed No Flange Included No Duct Size 4" Diameter