The Fort-Pak is a rigid plastic drum molded of high density polyethylene. Features a 2" closure and a center 3/4" NPT reducer in the cap. This translucent carboy meets FDA standards. Not for fuels or oils and has a 63mm neck. Dimensions are 10" x 10" x 15-1/4". #75001 UN 4G/Y37.6/S/XX USA/ AP0926; #75004 UN 4G/Y22.7/S/XX USA/ AP0892.