6" Backdraft Damper

This upgraded 6-inch backdraft damper features a stronger 0.6 mm design with two inward pressure ribs and dual springs for extra durability compared to standard models. Made of galvanized steel that withstands temperatures up to 140°F, with an aluminum axis and carbon steel springs, it’s built to resist rust and corrosion for smooth, long-term performance. The damper fits 150 mm ducts and should be installed horizontally with the spring positioned the same way for optimal operation.