*High Material: Made of premium ABS plastic, high temperature resistance, which ensures the temperature distribution of long term use. *Compability: Parking heater adapter tube is applicable for Webasto Diesel Parking Heater; for Eberspaecher Diesel Parking Heater, please check your model before buying. *Usage: Mainly used in duct fan system for various air circulation and ventilation engineering, circulation and heating/cooling conversion applications. Can also be used to cool AV equipment rooms, closets, racks and cabinets. *Function and Installation: The air outlet of the car heater pipe prevents scratches and dust on the surface of the car vent. No need to drill or cut, very easy to install. *Size: Inner Diameter: 75mm / 2.95'', Outer Diameter 1: 79mm / 3.11'', Outer Diameter 2: 60mm / 2.36", please confirm it is right for you before purchase., Weight: 0.0881849048 pounds, Manufacturer: FiTspi