This ventilation hose is the ideal accessory for your air conditioner, range hood, etc., as it can also reduce noise levels. Durable and flexible: The ventilation hose is made of polyester and aluminum, which together ensure high temperature resistance and good air tightness. The hose is also robust and can be flexibly extended and compressed. Noise-reducing: The exhaust hose is insulated with polyester, which reduces noise and vibrations. Wide range of applications: This exhaust hose is mainly used for air circulation and ventilation, making it ideal for greenhouses, toilets, bathrooms, and other damp areas, as well as offices, workshops, and garages. Color: silver; Material: polyester and aluminum; Length: 6 m; Inner diameter: 12.5 cm; Insulation thickness: 25 mm; Insulation density: 12-16 kg/m³.