We bring you the Thermo Scientific flammable material storage freezer 3552-11A for safe, cold storage of volatile materials. With 20.6 cu. ft. capacity, this 240 volt unit offers -20 to -12 degree C temperature and CFC-free insulation and coolant. The four permanently positioned wire shelves have built-in evaporators to provide even cooling to the stored materials. Model 3552-11A features thermostat control located on the cabinet exterior to eliminate interaction with stored materials. This UL listed, manual defrost freezer is engineered with no internal electrical components which could trigger an explosion and meets OSHA and NFPA safety requirements.