MSR Reactor Stove 2.5L

When you need to melt snow for a full expedition team or boil enough water for five freeze-dried meals in a single go, the MSR Reactor 2.5L is the stove system with the capacity and the performance to deliver without compromise.

Everything that makes the Reactor lineup the benchmark for cold and wind performance applies here at a larger scale. The radiant burner, heat exchanger, and internal pressure regulator work as an integrated system, with the heat exchanger completely enclosing the burner head to make wind virtually irrelevant to boil times. Half a litre boils in 1.5 minutes under test conditions, with real-world performance in cold and wind that outpaces every other canister stove system available. The internal pressure regulator keeps output consistent as temperatures drop and the canister empties, so performance doesn't fade across a long day of melting snow at a winter basecamp in the Canadian mountains.

The 2.5L capacity makes this the right choice for larger groups on ski touring trips, winter expeditions, and any situation where high-volume water production is the priority. The stove and fuel canister nest inside the pot for a compact, self-contained system that transitions from pack to boiling faster than any alternative.

• Boil time: 0.5L in 1.5 minutes
• Capacity: 2.5L, suitable for 2-3 persons or 5 freeze-dried meals
• Radiant burner with full heat exchanger enclosure for wind protection
• Internal pressure regulator for consistent cold-weather performance
• Stove and fuel canister nest inside pot
• Includes BPA-free strainer lid, PackTowl pot protector, and folding locking handle
• For best results use MSR IsoPro fuel canisters (sold separately)