Perfect for storage of volatiles where a spark-free internal cabinet environment is required, model 3556-6KX is manufactured by Thermo Scientific with 4.5 cu. ft. capacity and 120 volts. This flammable materials storage refrigerator freezer combo offers a temperature of 1 to 12 degree C in the refrigerator section and -20 to -12 degree C in the freezer section. The UL listed unit features spark-free interiors to reduce risk of internal explosion. This 120 volt combination unit is engineered with no internal electrical components which could trigger an explosion. It has magnetic vinyl gaskets for positive door seal and CFC-free insulation and coolant. Designed to meet NFPA 45 and 99 along with OSHA article 1910.307, this Thermo Scientific combo carries a 13 months parts and labor warranty. Comes with key lock included.