Acoustic Insulated Spiral Duct consists of an external pressure tight metal shell and comes in thickness ranging from 12.5mm to 50mm. The Spiral Duct is well protected from any kind of external damage and is easy to install. The Spiral Duct comes with a compact design and can be maintained without any hassles. Acoustic Insulated Spiral Duct is available in different specifications and dimensions to suit the specific requirements.
