For over 30 years, MSR's XGK has been the world's most reliable extreme condition stove, trusted by mountaineers everywhere. The XGK EX stove builds on that legacy. Like its predecessor, the EX boasts unrivaled performance, dependably burning a greater variety of liquid fuels than any stove on the market. The preinstalled GK Jet in the stove is used for white gas, kerosene, unleaded auto gas, and aviation gas use white gas for optimal performance. The stove also features a new flexible fuel line that allows it to pack smaller than ever, as well as retractable legs and pot supports for superior stability no matter where your next expedition takes you.