Enhance your enclosure with the EXM 881-SP4230 Inner Panel. Constructed from durable 12-gauge galvanized steel with a white powder-coated finish, this panel offers robust protection and a clean aesthetic. Designed for ES/ESDD enclosure types, it provides a solid internal mounting surface for your components.The EXM 881-SP4230 is an inner panel for ES/ESDD enclosures, made from 12-gauge galvanized steel with a white powder-coated finish. It has a thickness of 0.512 inches (13 mm) and dimensions of 40 inches in width and 28 inches in height.