Franziskaner offers their mini beer kegs in two different formats, on one hand we have the unpressurized 5-liter Franziskaner keg, following party keg format, and in the other we have the pressurized 6-liter keg, following perfect draft format.
As usual in unpressurized type of kegs, this keg has a spout at the bottom for the beer to come out naturally by gravity force. The pressurized version has a valve in the upper side that should be connected to a beer tap with the appropriate connector for the beer to come out.
To learn more about the difference between pressurized and unpressurized kegs (or casks) you can read this article.
The Franziskaner beer is easy to find in most European pubs, the most common format in this kind of establishments is the bottle format. You will recorgnize it by the Franciscan monk who appears on the label.