Performance-boosting fuel for your canister stove

MSR IsoPro is a performance-boosting, 80/20 blend of isobutane and propane, with the purest isobutane (5% or less n-butane) of any canister fuel. This clean-burning formulation maintains higher internal pressure at lower temperatures than standard butane/propane mixtures, delivering superior cold weather performance and more consistent output over the life of the canister.

Three Sizes
Sold in 4, 8 and 16 oz. canisters to meet the demands of any stove or trip. The 4 oz. canister is sized to fit inside the 1.0L WindBurner® and Reactor® Stove Systems.

Improved Performance
80/20 blend of isobutane and propane delivers superior performance throughout the life of the canister and in colder temperatures.

Clean-Burning
Zero-maintenance combustion.

Fuel Gauge
Built-in float gauge determines how much fuel is left.

Recyclable
Consult your local recycling center for regulations.