USA Standard Beer Kegs
All kegs, casks and containers are manufactured from 304 (1.4301) grade or 316 grade stainless steel and meet American and European testing quality standards.
Sxith-barrel kegs (1/6 bbl)
Quarter-barrel kegs (1/4 bbl)
Unstackable US beer kegs always be chosen by big brewery.
Stackable US beer kegs normally will be chosen by craft brewery or Pub bar to match for kegerator.
For example one 170 wind cooler can load 3 or 4 US 1/6 barrels, it is one of popular product all over the world.