Calgaz offers two aerosol type gas cylinders used where the quantity of gas required is small. The 1ALE is supplied with a screw type valve and requires a regulator from the FF20 range to be fitted to regulate flow and replaces the 12DA cylinder. The 1ALU is supplied with a plastic trigger mechanism allowing an unregulated flow of gas to be released and replaces the 1AL cylinder. This product is approved globally.