Greenheck: Fire Dampers
 
Dynamic 1.5 Hour Rated Damper: DFD-150
Dynamic Rated Type A 
1.5 Hour UL Label 
Use with Fire Partitions (2 Hours) 
Galvanized Steel Construction 
Horizontal & Vertical Installation 
Closure Springs and Latches 
Fusible Links UL Listed (165 Degree F) 
Mill Finish 
12" Sleeve