Arzel dampers are installed directly into existing duct work, saving you time and eliminating the mess for the homeowner. The unique motor-less design makes them the quietest, most reliable in the industry. Due to the flexibility and simplicity of Arzel's damper installation, you are able to use branch or trunk dampers based on the application and homeowner's lifestyle.

• Inserts into existing ductwork ideal for retrofit applications
• Operates on low pressure air supplied by arzel control panels
• Motorless, eliminating motors and gears