MSR IsoPro 3.9 oz Fuel Can

Due to hazardous materials shipping restrictions, we do not sell IsoPro online. To purchase, please visit our store or purchase online for INSTORE PICKUP.

The smallest canister in the MSR IsoPro lineup, the 3.9 oz size is purpose-built for ultralight solo trips and designed to nest inside the 1.0L WindBurner and Reactor Stove Systems for a truly self-contained cook kit.

The same high-performance 80/20 isobutane/propane blend that makes larger IsoPro canisters the go-to choice for serious backcountry cooking is here in a minimalist package. Higher internal pressure at lower temperatures means consistent output on cold Canadian mornings when a standard butane/propane canister would already be fading, and the 5% or less n-butane purity level delivers clean, zero-maintenance combustion across the full life of the canister. The built-in float gauge lets you monitor remaining fuel without guessing.

Please note: due to hazardous materials shipping restrictions, IsoPro cannot be shipped. Available for in-store purchase or online ordering for in-store pickup only.

• 3.9 oz canister
• Sized to nest inside MSR 1.0L WindBurner and Reactor Stove Systems
• 80/20 isobutane/propane blend
• 5% or less n-butane for maximum purity
• Superior cold-weather performance over standard butane/propane blends
• Built-in float fuel gauge
• Clean-burning, zero-maintenance combustion
• Recyclable canister
• In-store purchase or in-store pickup only, cannot be shipped