Unbranded 4 in. Steel Backdraft Damper

Backdraft dampers with galvanized steel collar and lightweight aluminum damper blades. Spring loaded for positive closure against interior gasket. 4 in spring loaded back draft damper. Galvanized steel collar. Aluminum damper blades. Rubber gaskets for tight seal.

• 4 in. spring-loaded damper is ideal for back drafting
• Rubber gaskets ensure a hermetic seal
• Galvanized steel collar ensures durable performance