An apparatus comprising a base defining a recess shaped to accommodate a bottom of a tank, a pair of side walls extending upwardly from the base, and a pair of end walls extending upwardly from the base. Each side wall defines an indentation on the inner surface thereof shaped to conform to an outer surface of the tank when the bottom of the tank in the recess. One of the end walls defines a notch shaped to accommodate a neck of a bottle lying on a side thereof between the side walls. The apparatus may be used to transport one of the tank and the bottle at a time.