Exterior finish: The self-service doors are stainless steel, the remaining exterior is white enamel over smooth steel. The remaining exterior is available in stainless steel. There are no exposed raw edges since all exterior joints and seams fold in without lap joints. Interior finish: The self-service doors and the remaining interior is galvanized steel. Stainless steel interior is available as an option. Insulation: The cabinet is insulated with 2-1/2 inches of fiberglass. Hardware: The milk coolers are equipped with easy roll locking swivel casters and heavy duty floor racks. The gasketed, insulated door with chrome plated hinges opens for small child self service, closes and locks. An NSF listed drain is standard with every unit. (4) six inch adjustable legs are available as an option. Instrumentation: The NSF listed thermometer measures temperature in degree F. Refrigeration: Self contained R-22 refrigeration system. The evaporator is a cold wall evaporator in the cabinet with no moving parts which allows more room for product. The condenser is an air cooled, copper tube and aluminum finned coil which is mounted on the base of the unit. Compressor is 1/5 HP. Operating temperature: 38 degree F. Electrical: 115 volt, 60 Hz, 1 phase with cord and plug.