Rectangular Dampers
Rectangular Control and Manual Balancing Dampers
Aluminum 3-V, Aluminum Airfoil, Steel 3-V, Steel Airfoil, Thermally Efficient
CD-120, CD-121
Class I, Galvanized Steel Hat Channel Frame and 3V Blade Control Damper, 12" w.g.

Product Overview
Model CD-120 (Opposed Blade) or CD-121 (Parallel Blade) are low leakage AMCA Class I, 18 Gauge, Galvanized Steel Hat Channel Frame and 3V Blade Control Dampers, 12" w.g.
- 4 ½” Deep Galvanized Steel Frame
- 6” Wide 3V Galvanized Steel Blade
- Bronze Oilite Bearings
- Class 1A Leakage
- Optional Factory install actuators