Usage Tips:Features: 1.Warm Air Ducting: Material : Aluminum foil Length : 50-100cm19.68-39.37in Diameter : 60mm2.36in Application : for Webasto, for Dometic,for Propex etc. Mainly used for 2KW diesels air heaters. Hot and cold, air ducting for diesels heater. 2.Heater Ducting Vent Outlet: Material : Plastic Height : 100mm3.93 in Diameter : 60mm2.36in Suitable for 60mm warm air ducting. Front fascia is removable to enable access to screw holes for correct fitment. Fascia is rotatable 360 degrees - warm air can be directed. 3.Air Ducting T Pipe: Material : Plastic Color : Black Diameter : 60mm2.36in For 60mm internal diameter ducting Efficient split the flow of warm air from your heater. 4.Hose Clip: Material : Metal Diameter : 60mm2.36in Notice: Please allow 0.5-1 inch difference due to manual measurement.1inch2.54cm The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding. There are no instruction included Professional Installation is highly recommended. Specification : Product Name:Heater Duct ,Vent Outlet, Hose Clip ,T Pipe Fitment:For Eberspacher, for Webasto,for Propex heater warm air ductingPackage List: 2 x Heater Duct 2 x Vent Outlet 1 x Air Ducting T Pipe 4 x Hose Clips