Transport Drum Drum Head Type Closed Head Drum Lid Closure Tight Head Drum Volume Capacity 55 gal Primary Drum Material Steel UN Rating Liquid 1A1/X1.6/300 Packing Group I II and III of Hazardous Materials Gauge 18/18/20 Drum Color Black Drum Cover Color White Inside Dia 22.5 in Overall Height 36 in Outside Dia 24 in Material Thickness 0.9 mm (2) 1.2 mm Bung Hole Dia 2 in NPT x 3/4 in Fittings Drum Interior Coating Epoxy Phenolic Load Capacity 733 lb Gasket Material Rubber