Ensures safe storage of flammable and non-flammable acids. Durable cabinets are constructed of double-walled 18-gauge steel. Designed with 1 ½" air space between walls, and upper and lower vents with fire baffles for ventilation. Also features 3-point key lock, 2" raised leak-proof door sill, baked-on high gloss blue epoxy powder finish, and highly visible warning labels. High density polyethylene shelf trays won't rust or corrode and contain up to 1 gallon of spill. Self-closing door models are equipped with a fusible link that melts to shut doors in case of fire. FM approved. Sold individually.