JETBOIL JETPOWER FUELTHE PERFECT BLEND FOR COLD WEATHER HEATING- THE JETBOIL JETPOWER FUEL.Formulated for maximum efficiency and minimum consumption, Jetboil's high-performance propane/isobutane four-season fuel delivers higher vapor pressure for improved performance in cold weather. The 100gram fuel canister will pack inside of any model Personal Cooking System, while the 230gram and 450gram canisters will pack inside of the Sumo Companion cups and the Sumo systems.FEATURES100g: (approx. 12 liters of boiled water)230g: (approx. 24 liters of boiled water)450g: (approx. 48 liters of boiled water)