Highly durable - multi-layer laminate of aluminium and polyester. Provides a robust construction. Technical information: Diameter: 125 mm / 5 inches inside, +2 mm outside, Length: 10 m Purpose - Dedicated to ventilation systems. Will bring fresh air into your drying room, greenhouse or cellar. Use it to exhaust warm air from your portable air conditioner. Multiple sizes - a wide range of possibilities. Choose the size that suits you. Various diameters and lengths of ventilation hoses. Wide operating range - The hoses allow you to work in temperatures from -30 °C to +140 °C. Durability is ensured by a flow rate of 25 m/s or +2500 Pa. Versatility - Duct hose for use in construction. You will use it for all heating, ventilation and cooling purposes. It will allow you to circulate air wherever you need it., Weight: 1.1 Pounds, Manufacturer: STERR