The 4 in. x 6 ft. Heavy Duty Semi-Rigid Aluminum Duct with Collars is ideal when all aluminum duct is required x code in some gas and electric dryer applications. It can also be used for bathroom fan venting. This duct is totally noncombustible and has a maximum operating temperature of 435 degree F.

• Aluminum collars on both ends of the duct swivel making for easy attachment to the dryer exhaust port and exterior exhaust hood
• UL2158A listed and marked for safe dryer venting
• New manufacturing technology incorporated into the duct allows for easy rotation and therefore more durable handling of the duct by the contractor
• UL duct is thicker than the standard non-UL semi-rigid version that allows for a more robust installation