MSR 227g IsoPro Gas Canister
By using a high-quality mix of 80/20 isobutane and propane, MSR’s 227g IsoPro Gas Canister is able to provide better, more consistent performance throughout its life, even in colder weather. It burns hot and clean thanks to the use of very pure isobutane (5% or less n-butane), and the canister has a float gauge on the side to show how much fuel is left.
- 80/20 blend of isobutane and propane
- Clean-burning formulation maintains higher internal pressure at lower temperatures than standard butane/propane mixtures
- Superior cold weather performance and more consistent output
- Built-in float gauge