Dayton Damper Backdraft

Item Name:Dayton Damper BackdraftDescription:This model is a non-flanged horizontal mount exhaust backdraft damper. The blades have a felt seal on the leading edge for better protection from the weather, and are spring assisted to allow blades to open quickly. Ideal for use in roof curbs, duct work, or wall collars when using a fan or power roof ventilator. Recommended for horizontal mount exhaust applications but it is also available for vertical mount. Item: Backdraft Damper Type: Wall Mount, Supply Damper Size (In.): 13 x 13 Overall Size (In.): 15-3/4 x 15-3/4 Flange Width (In.): 1-3/8 Max. Velocity (FPM): 2000 Construction Material: 16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware Use w/Dayton Ventilators: 4HZ50, 4HZ51 Includes: Felted Edges For Quiet OperationItem: Backdraft Damper | Type: Wall Mount, Supply | Damper Size (In.): 13 x 13 | Overall Size (In.): 15-3/4 x 15-3/4 | Flange Width (In.): 1-3/8