Fantech RSK 4, 4" Back-Draft Damper

Backdraft damper for circular ducts, manufactured from galvanized sheet metal. The two blades are spring-loaded. Every damper is built with performance in mind. The damper can be mounted vertically.

• Damper blades formed from aluminum H14
• 3/32" diameter brass central rod
• Stainless steel torsion spring
• 24 GA, G90 galvanized steel casing
• EPBM synthetic rubber gasket

 

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