MSR IsoPro - Gas Cartridge - 227g

The MSR® IsoPro™ gas cartridge optimizes cartridge stove performance with an 80/20 blend of isobutane and propane, and contains the purest isobutane (5% butane or less) of any cartridge fuel. This clean-burning blend maintains higher internal pressure at lower temperatures than common butane/propane blends, providing superior cold-weather performance and more consistent output throughout cartridge life.

Features of the MSR IsoPro screw-in cartridge

• Improved performance: 80/20 blend of isobutane and propane provides superior burning performance throughout cartridge life, even in colder temperatures.
• Environmentally friendly: Maintenance and residue-free combustion.
• Level indicator: Printed scale indicates remaining fuel by floating (for 110 g/4 oz and 226 g/8 oz cartridges).
• Recyclable: Check with your recycling center for exact instructions on how to recycle.