The Fillpartner Autofiller for the Aspen 5 litre jerry can makes refuelling your machine easy. In addition, the Autofiller protects you and your environment from unnecessary direct contact with the fuel due to the unique vapour return system, as the complete seal on each tank ensures that no petrol vapours are released. The petrol vapour from the tank is sucked into the jerry can. When the tank is full, the Autofiller automatically stops refuelling. As a result, you will never have to mess around again.