' Transport Drum, Head Type Open Head, Closure Type Leverlock Ring, Volume Capacity 20 gal., Material Carbon Steel, UN Rating Solid 1A2/X220/S, UN Rating Liquid 1A2/Y1.5/150, Packing Group I, II and III of Hazardous Materials, Gauge 18, Color Black with White Cover, Inside Dia. 18-1/4 In., Overall Height 21-1/2 In., Outside Dia. 18-3/4 In., Material Thickness 1.2mm, Interior Coating Rust Inhibitor, Gasket Material EPDM, Weight 27 lb. '