Fantech RSK 10 - 10" Duct Backdraft Damper
The Fantech RSK 10 is a back draft damper with a 10" duct.
The Fantech RSK 10 is made from galvanized sheet steel and can be used for circular ducts. It has 2 damper blades that are made from lightweight aluminum. These blades are spring loaded, so that the damper can be vertically mounted.