Greenheck GFSD-211 Out of Wall Combination Fire Smoke Damper

The Greenheck GFSD-211 is an out-of-wall combination fire and smoke damper engineered to restrict the spread of fire and smoke through HVAC ductwork where the damper is mounted outside the rated wall assembly. Designed to meet UL 555 and UL 555S requirements, it provides both fire-rated closure and smoke control in a single unit for applications where in-wall installation is not feasible.

Built to Greenheck's exacting standards, the GFSD-211 features a robust actuator and blade assembly that closes automatically upon detection of fire or smoke, offering flexible installation options while maintaining life-safety performance in commercial and institutional HVAC systems.

Ideal for commercial, institutional, and industrial buildings requiring UL-listed out-of-wall combination fire and smoke damper protection in HVAC systems where standard in-wall damper installation is not possible.