Primus Power Gas Canister - Primus’ Power Gas consists of a mixture of propane and isobutane. It is the most versatile blend, delivering excellent power. Even if the temperature drops below freezing it still provides sufficient power to run a stove. Its versatility makes it suitable for situations where the weather and temperature conditions are uncertain. Power Gas is Primus' most versatile gas blend, delivering excellent power even around zero degrees Celsius.Primus PowerGas is our carbon dioxide neutral fuel. Canister Size 100g Canister Size 450g