Thanks to physical properties of propane, every last gram of gas in the Coleman Propane cylinder is used to operate your stove, lantern or heater.__ It's a cleaner combusting fuel, producing a low amount of carbon dioxide, therefore producing less pollution. __ Propane also performs better than butane in a wider range of temperatures, especially in the cold.__Contents (per cylinder): 465g propane, 1.17 litres Weight: 395g