This flexible flat duct is an optimal solution for guided recirculation for your cooktop extractor, such as Bora, or your range hood. Thanks to its flexible double-walled structure, vertical and horizontal bends (90°) of the airflow can be made without technical effort or additional bends, significantly simplifying installation and reducing assembly time. With a maximum length of 1800 mm, the range hood or cooktop extractor unit can be easily connected to the exhaust or filter unit, whether in the ceiling or base area, over this distance.