MSR IsoPro Fuel Canister (110g)
The MSR IsoPro fuel canister is a performance-boosting 80/20 blend of isobutane and propane with the purest isobutane of any canister fuel — 5% or less n-butane. 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. The 110g size measures 3.5 x 2.7 inches, features a self-sealing threaded valve, and includes a printed float gauge to monitor remaining fuel. Compatible with MSR canister stoves and most threaded backpacking stoves.
Check Latest Price on Amazon →Why You Need This
A canister that won't light at 25°F turns a planned hot dinner into cold trail food. MSR's IsoPro uses an 80/20 isobutane-propane blend with the purest isobutane (5% or less n-butane) of any canister fuel, maintaining higher internal pressure at lower temperatures for consistent output in cold conditions.
🏆 How It Compares
The 110g size is the standard backpacking canister — light enough for overnighters, with a self-sealing threaded Lindal valve that fits MSR PocketRocket and most other threaded canister stoves. It outperforms standard butane blends in cold weather thanks to the 80/20 formulation and a built-in float gauge lets you check remaining fuel. The tradeoff: it's a premium fuel at a premium price per gram vs bulk butane, and availability is thinner than gas-station propane.
Pros & Cons
✅ Pros
- 80/20 isobutane-propane blend lights reliably in cold weather (down to ~11°F vs 31°F for butane)
- Lightweight 110g size is ideal for backpacking and overnight trips
- Built-in float gauge shows remaining fuel at a glance
- Self-sealing threaded Lindal valve fits most backpacking stoves
❌ Cons
- Premium price per gram compared to bulk butane canisters
- Single-use — must be recycled at proper canister take-back points
- Not ideal for high-output car camping stoves that need propane
🎯 Who Is This For?
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