Stores half barrel, tall quarter barrel, pony keg or two sixth barrels or Cornelius kegs Drain pan and hose, 5 lb. CO2 tank, connectors, regulator and interior floor shield included Lo-Boy coupler makes it easier to store, tap and swap out tall US type D barrels Dynamic Cooling TechnologyTM delivers the industry's best temperature stability and rapid cool down, tested and proven to cool nearly 2x faster than competitors Double-insulated stainless steel tower reduces foam on pour and prevents condensation