The ducting is designed to bring the exhaust air from the ventilation fan unit to the window. Ventilation tubes are suitable for air conditioners, kitchen exhaust fans, central ventilation systems, etc., to help exhaust air and are suitable for domestic kitchens, bathroom air conditioners and other locations. Safe to use: lightweight, practical and integrally moulded to ensure ventilation. Heat resistant fan enclosure from -30°C to +100°C. Sealed with a fire-resistant aluminium hose to keep smoke and moisture away from the living area. Saves space: the flexible ducting is made of aluminium, which is both elastic and flexible. The bellows construction allows it to be freely bent and extended to suit the area and location of use, saving a lot of space. The bellows design makes it easy to use as it can be bent freely. The length can also be extended and retracted for easy adjustment. Material: aluminium foil (laminated) + steel wire. The duct high carbon steel wire is helical with a narrow pitch, preventing mould breakage. The special laminated construction with two layers of aluminium foil provides excellent durability and airtightness, as well as heat resistance. Application: restaurant and kitchen cooker hood, air circualtion systems, ventilation fans, exhaust fan and dryer machine, Weight: 0.661386786 Pounds, Manufacturer: PBDEIOEOE