The Optimus Polaris Optifuel is the benchmark for maximum versatility and ease of use in outdoor cooking. With its single jet technology it delivers excellent cooking performance with LPG Gas, White Gas, Kerosene, Diesel and Jet Fuel without having to change anything on the stove. The patented quick-priming burner, the self purging aluminium pump and a built in magnetic cleaning needle ensure reliability and ease of use when liquid fuels are used. When using LPG gas, you can switch between efficiency mode and 4 season mode (for usage at low ambient temperatures) by simply opening the integrated support legs and turning the canister upside down. Including 0.4 liter fuel bottle.