This pressure barrel holds a stanrdard 5 gallon brew and has a 4" cap allowing better access for cleaning. The Top Tap allows a glass to be put underneath the tap without it needing to hang over the edge of a shelf or table. Inside the keg is a float system which draws beer from the top of the beer rather than the bottom where there may be more sediment. Since been clears from the top this allows cleared beer to be drawn earlier. The cap includes a CO2 pin valve which allows CO2 to be injected using 8g CO2 bulbs and a bulb holder which are available seperately.