Connect the Jetboil Jetpower Fuel to any Jetboil burner for easy cooking or water boiling when you are out on your next adventure. The propane/isobutane blend is suitable for 4-season use. The propane in the Jetboil Jetpower Fuel provides high vapor pressure for optimal performance in cold weather and the isobutane provides constant pressure as the fuel level gets low. SCHEELS is where to buy your Jetboil Jetpower Fuel!