This gas burner is designed to convert your Trangia 25 or 27 spirit fuel cooker into a more efficient and controllable alternative to the original spirit burner. It can be easily installed in the lower windshield and is a DofE Recommended Kit that is included in the DofE Expedition Kit List.Part of the DofE Award recommended kit which features on the DofE Expedition Kit ListOffers greater efficiency and controlWeight: 180gIncludes coverHighly efficientEasy controlHigh power means a faster boiling timeClean burning - no soot on your pans!