ISOPRO 4oz Canister

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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 (4 oz. and 8 oz. canisters).
  • Recyclable: Consult your local recycling center for regulations.
  3.9 oz / 110g 8 oz / 227g 16 oz / 450g
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
Due to hazardous materials shipping restrictions, we do not ship IsoPro.