Brand Name: Deflect-O | Color: Silver | Diameter: 4 in. | Length: 96 in. | Material: Aluminum | Number of Pieces: 1 pc. | Sub Brand: Jordan This 4 inch diameter semi-rigid air duct is suitable for general air handling applications like exhaust venting, bathroom venting, range hoods, suspended ceilings and more. The metallic duct can be extended up to 8 feet in length and can be cut to size for specific venting applications. The semi-rigid transition duct is fire-resistant and it won't collapse, sag or bunch up. Flexible enough for easy installation. | Be sure to clean ducts over time for optimal appliance performance | For multiple uses dryer, bathroom or kitchen venting | Semi-rigid but flexible for easy installation | Fire resistant and non-crimped | Can be cut to length of specific venting application