King and Queen Sizes? Kubicek fuel tanks offer more than half a year more than the others... Kubicek King and Queen tanks are certified to hold a maximum propane level of 85% capacity instead of common 80% of the others tanks. They are also rated to 89.5 bar and are robot welded to provide an extra level of safety. Always know the fuel level in your tank with an easy to read colour scaled gauge. All this and much more! Why not look for more information here.. Ask your local dealer for prices and fly with royalty of tanks. Order King and Queen Size under the Christmas tree and fly in 2018!