We have the Thermo Scientific flammable material storage freezer 3556-4 designed specifically for safe, cold storage of flammable and volatile materials. With 5 cu. ft. capacity, this manual defrost unit offers a temperature range of -20 to -12 degree C and CFC-free foamed-in-place urethane insulation to help minimize operating cost. The 120 volt unit has 2 fixed internal shelves and 3 fixed door shelves. Model 3556-4 features hermetically sealed refrigeration compressor which is quiet enough to be used in a laboratory and has adjustable temperature control. This UL listed Thermo Scientific freezer meets OSHA and National Fire Protection Association safety requirements.