Gaslow are self-fill bottles and come in 3 sizes. Two systems: fixed, which is primarily for motorhome use and has a external fill point on the vehicle; and direct fill, which is loose bottle which is ideal for caravans/motorhomes, barbecues, patio heaters etc. Can be simply put in your car and refilled at your nearest fill point at your convenience.
The 11kg bottle carries approximately 21L at 80% fill. The height is 530mm, diameter 304mm and weight approximately 12.4kg.