The Dispensing Shelf has a load capacity of 60 lb (27 kg), and mounts securely to the stack module for convenient dispensing from the upper level.The drum Management System is a space-saving, stackable design that stores up to four 30- and/or 55-gallon (110- and/or 200-L) drums of Class 1B or 1C flammables and combustibles or nonhazardous liquids. 100% molded polyethylene construction provides maximum chemical resistance—preventing corrosion, deterioration and leaks. Molded-in drum lock-channels