MSR Reactor 2.5L Camping Stove System - The Reactor 2.5L stove system from MSR combines state of the art cookware with a revolutionary design, making the Reactor the fastest, most fuel-efficient stove system ever. The Reactor"s radiant burner is enclosed by a unique heat exchanger for unmatched performance in windy conditions while an advanced pressure regulator provides optimal heat output over the life of a fuel canister. The Reactor outperforms the competition, delivering incredibly efficient heat transfer. Stove and fuel stow inside of the high-efficiency 2.5-liter pot that excels with groups up to four people. The wider pot makes it a snow-melting expedition powerhouse. A collapsible handle locks the unique see-thru lid in place for easy transport. In the conditions you rely on a stove the most, only the MSR Reactor 2.5L stove system can pull through.