M.S.R.

Iso Pro 4oz

Sale price$10.00
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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. canisters 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.
  16 oz / 450g 3.9 oz / 110g 8 oz / 227g
SKU 04589, 04590 06927, 06928 322100, 06834
Width (Standard) 4.4 in 3.5 in 4.3 in
Weight (Standard) 1 lbs 7 oz 7.4 oz 13.1 oz
Length (Standard) 4.4 in 3.5 in 4.3 in
Height (Standard) 6.0 in 2.7 in 3.7 in
Country of Origin Made in Korea Made in Korea Made in Korea

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MSR

In 1969, Seattle engineer and lifelong mountaineer Larry Penberthy formed Mountain Safety Research as a one-man crusade dedicated to improving the safety of climbing equipment. The fuel behind Larry's passionate fire was a simple belief that still drives the MSR team today: The idea that better, safer, more reliable equipment
is the key to unlocking greater adventures.

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