Transport Drum Head Type Closed Head Volume Capacity 5 gal. Material Carbon Steel UN Rating Solid 1A1/X1.6/250 UN Rating Liquid 1A1/X1.6/250 Packing Group I II and III of Hazardous Materials Gauge 20 Color Black with White Cover Inside Dia 14 In. Overall Height 10-3/8 In. Outside Dia 14-1/4 In. Material Thickness 0.9mm Bung Hole Dia 2 in NPT x 3/4 in Fittings Interior Coating Rust Inhibitor Gasket Material EPDM Weight 10 lb.