The Campingaz 904 1.81kg (4lb) gas bottle (cylinder) refill is the middle sized cylinder in the Campingaz range. Campingaz cylinders are widely available throughout Great Britain and Europe which make them the ideal cylinders to travel with. They use the standard Campingaz regulator (070235) and are designed to be used when camping in tents, caravans, camper vans and on a wide variety of Campingaz BBQ's, cookers, heaters and many other indoor and outdoor gas appliances. If you do not have an empty Campingaz 904 cylinder to return, please see the complete cylinder and refill code CAMPINGAZ-904+ If you require any assistance or advice, please call our sales team on 01903 700 778. Other useful information. Cylinder Group: Group Campingaz. Height: 170mm (approximate). Diameter: 203mm (approximate). Regulator Type: Campingaz screw-on, normally light blue but can differ* please see below. Product Net Weight: 1.81 kg (approximate). Cylinder Tare Weight: 2.80 kg (approximate). Total Gross Weight: 4.61 kg (approximate). Gas Safety Sheet: GENERAL CYLINDER HANDLING.pdf*You will need a regulator to connect to this cylinder. If you don't have one or need a spare or replacement, please see the Gas Bottles Direct gas fittings page and choose code CAMPINGAZ-REG. *These are used cylinders and will show signs of age and use and may differ from image shown.