Lab-Line General Purpose Freezers are available in the models. F4415-2 is a 7 cubic ft. chest-style freezer that includes a storage basket. Textured enameled steel exterior. Key lock in lid for security. F4415-3 is an 18 cubic ft. chest-style freezer that is Lab-Lines' largest chest-style model. Storage basket is included. Textured enameled steel exterior. Key lock in lid for security. F4415-4 is a 20 cubic ft. upright freezer with four fixed wire shelves and six door shelves. Door comes with built-in key lock. Enameled steel interior and exterior. All models are manual defrost.