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.

MSR® IsoPro™ Gas Cartridges

    • 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 (4 oz. and 8 oz. canisters). 
    • Recyclable: Consult your local recycling center for regulations.
  •   3.9 oz / 110g 8 oz / 227g 16 oz / 450g
    SKU 06927 322100 04589
    Color None None None
    Width (Standard) 3.5 in 4.3 in 4.4 in
    Weight (Standard) 7.4 oz 13.1 oz 1 lbs 7 oz
    Length (Standard) 3.5 in 4.3 in 4.4 in
    Height (Standard) 2.7 in 3.7 in 6.0 in
    Country of Origin Made in Korea Made in Korea Made in Korea