Our uKeg 64 pressurized growler available in a bright copper-plated finish for a true, old-fashioned brewery look. The uKeg 64 is a mini keg in the size of a half-gallon growler, keeps beer cold and fresh. On the go or at home. Durable, double-wall vacuum insulated stainless steel. CO2 regulator cap with customizable tap handle and gauge. Brass carrying handle. Includes two 8 gram CO2 cartridges.