Manufactured by Thermo Scientific, this flammable storage refrigerator freezer combination unit is ideal for storage of volatiles where a spark-free internal cabinet environment is required. With 4.5 cu. ft. capacity, this 120 volts unit provides a temperature range of 1 to 12 degree C in the refrigerator section and -20 to -12 degree C in the freezer section. Model 3556-6KX features spark-free ABS plastic interior with enameled steel exterior to reduce risk of internal explosion. The thermostat located on exterior of the cabinet eliminates interaction with stored materials. With single solid door for both refrigerator and freezer, this model has CFC-free insulation and coolant. Meets OSHA and National Fire Protection Association safety requirements. Comes with key lock included.