These 55 gallon steel drums are designed, manufactured, and certified to meet UN requirements under DOT 49 CFR. Constructed of first quality rolled steel and supplied with rust-inhibitor interior or chemical resistant epoxy-phenolic lining. Closed head has 2" and 3/4" NPT bungs in cover. Open head includes 12 guage bolt type locking ring, bolt, nut and gasket cover. Standard color is black. Closed head rated at 1A1/X1.8/30 and open head at 1A/Y1.8/200. Please call for additional sizes and colors. Note: please specify open or closed head when ordering. ***Additional shipping charges may apply; please call for a quotation.