Sankey kegs are commonly used as commercial kegs, being much thicker then ball lock or pin lock kegs. They provide a 1/2" draw tube vs 1/4", so less clogging. The term 'sankey' also refers to the sankey coupler, which some favor over ball lock or pin lock disconnects due it having less of a leaking potential. The sankey keg also comes in a larger size, we stock both the 1/6 barrel and 1/2 barrel styles. Unlike ball lock and pin lock, sankey's lack an easy to open lid for cleaning. So cleaning requires removing the center spear.