Kair Aluminium Flexible Hose 100mm - 4 inch - 10 Metre Length Fan Ducting 100mm inner and 102mm outer diameter. This is a light and very flexible hose Made in the UK using a 5 layer laminate of aluminium / polyester. It is a versatile product which can be used for low and medium pressure heating, ventilation, cooling, and exhaust systems. Can be used with: Kitchen & Bathroom Extractor Fans Ventilation Units Hydroponics & Grow Rooms Tumble Dryers Cooker Hoods Connect hose to relevant spigot / outlet and fix in place using a metal hose clip Part: DUCVKC264 or quick release worm clip. Max / Min Temperature: +150c / -30c. Maximum Operating Pressure: 2500 Pa. Maximum air velocity: 30m/sec. Bending radius: 0.54 x D. Conforms to UK BS476 parts 6, 7 and 20 (54923, 54068, 53442) Versatile product which can be used for low and medium pressure heating, ventilation, cooling, and exhaust systems. Perfectly suited for ducting your Bathroom or Kitchen extractor fan, Hydroponics, In-Line Extract Fans, Tumble Dryer, or Cooker Hood. This flexible hose can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, air conditioning, positive pressure ventilators, HVAC, and Heat Recovery Systems. Compatible with the extensive Kair ducting range of fittings, outlets, and grilles.