High-performance propane/isobutane four-season blend Propane provides higher vapor pressure to the fuel for better performance in cold weather. Iso-butane provides more constant pressure as the fuel level gets low Jetpower microcanisters stow conveniently within the 1 liter cooking cup and the 1.5 liter pot. This item is not for sale in Catalina Island The JetPower Fuel 110 Canister is the replacement fuel canister for the Jetboil Personal Cooking System, and is compatible with other canister stoves as well. The JetPower Fuel 110 powers the Jetboil with high-performance propane/isobutene fuel, and boils 12 liters of water. It stows neatly in the Jetboil cooking cup when you're on the go.