Jetboil Joule Group Cook System An inverted canister design offers liquid fuel feed while Jetboil's proprietary regulator technology offers incremental heat adjustments from light simmer to full boil, perfect for sauting, simmering, and everything between. The 2.5-liter FluxRing cooking cup with insulating cozy allows you to boil large amounts of water or melt snow, making it a popular choice for guides and groups. Get precision control at temperatures as low as 10 degrees F (-12 degrees C) with the advanced regulator valve. Start heating instantly with the convenient, reliable pushbutton ignitercompatible with 100-gram and 230-gram Jetpower fuel canisters. Inverted canister design with liquid fuel feed; weighs 28 ounces. One-year limited warranty. For any adventurefrom alpine expedition to a weekend trekJetboil offers a stove that will keep you fueled. When exploring the backcountry, a compact and efficient stove is fundamental, no matter the level of cuisine you want to create.