You will get the brand new brass petcock and the two adapters and the brass spigot that is pictured. You will have three OD sizes and all the sizes I have ever encountered or British motorcycles. The small thread OD is 3/8″ the next size up is 1/2″ and the next is 11/16″ / all the threads are British Straight Pipe. The adapter is for 1/4″ fuel line.