AccuCold by Summit Appliance offers a wide range of undercounter refrigerator-freezers for general purpose storage. The commercially listed CM421BLBI7 Series features high performing 20 wide locking units designed for built-in use in commercial applications.About AccuColdAccuCold by Summit has been supplying refrigerators and freezers to the medical, laboratory, pharmacy and scientific markets for over four decades. AccuCold features an extensive product line in all sizes, including the largest assortment in the industry of built-in undercounter and ADA-compliant models with locks, as well as a complete selection of chest and upright freezers, low-temperature freezers, and compact units. AccuCold offers their products with the features you need, including locks, temperature alarms, data loggers, and more. AccuCold is continuously innovating their product line to provide the highest quality, most convenient operation, and best value for all your pharmaceutical, scientific, medical, and laboratory storage needs.