Accucold's stackable PRO series refrigerator-freezer combinations offer space-saving cooling solutions for general purpose use. Sized at just 24" wide, the ACR1151-FS24LSTACKPRO combines two conveniently designed general purpose units into one slim-fitting footprint. Pharmaceutical all-refrigerator ACR1151PRO offers 11 cu.ft. of storage, with a self-closing glass door and adjustable cantilevered shelving. Frost-free operation minimizes user maintenance, with an internal fan to ensure more even temperature distribution. The cabinet and interior are constructed from stainless steel for lasting durability and easier cleanup. Compact FS24LPRO all-freezer utilizes a static manual defrost system. Both models include locks for added security, with two keys included for each unit. Hospital grade cords with 'green dot' plugs offer added convenience for busy facilities, ensuring the cords are not easily dislodged from the wall socket. Factory-installed probe holes are included on both units to allow users to install their own monitoring devices. All Accucold STACKPRO units ship in three boxes and require some minor assembly upon delivery. Additional stacked combinations can be created by ordering virtually any two units with our StackRack. These units can also be customized with a variety of refrigeration options, including NIST calibrated thermometers, USB data loggers, open door alarms, and much more. To create a custom combination, contact our sales team at 718-893-3900. NOTE: Accucold refrigerators are purpose-built to the support meeting the current CDC (Centers for Disease Control) guidelines for the storage of vaccines. At this time, Accucold refrigerators have not been evaluated to the new NSF 456 standard. As referenced in the current Vaccine Storage and Handling Toolkit, these units incorporate microprocessor controls and forced air circulation for stable operation between 2 and 8 C. For additional temperature assurance, the CDC recommends a calibrated digital data logger (DDL), which can be added with the factory-installed option DL2B or addition of the DL2BKit accessory.