Non-insulated supply/return flexible aluminum air duct. Designed for use as a non-insulated supply/return air duct in return plenum ceilings or other areas with demanding fire safety requirements.
- This product is UL Listed as a Class 0 Air Duct in accordance with NFPA90a and 90b. It is non-insulated, high pressure, flexible aluminum "Metalflex" air duct. Our design allows for better stretching and bending characteristics. This helps eliminate flattening on the outside radius of a bend thus preventing restricted airflow.
- Crimped end slides easily into plain end, ensuring smooth connections.