The FCW 20 EG (electricity/gas) is designed exclusively for freezing large quantities of ice packs. They supplement the RCW 42 refrigerators. Outer body rotomoulded with Polyethylene. Insulation materials: Polyurethane & Cyclopentane. Control panel situated at the left side on top of the unit; 1 selector switch for AC or DC function. Lockable lid with 2 catches. Silicon gasket ensures tight sealing.