K2 Scientific High-Performance upright refrigerators and freezers feature K2 Monoblock technology. Unlike traditional medical/pharmaceutical/lab refrigerators, the entire cooling system of a K2 High-Performance unit is housed in a one-piece, removable system installed on top of the refrigerator or freezer. In the event of a system failure, the K2 Monoblock can be easily replaced in 20 minutes or less. This could be critical when storing thousands of dollars of products. The cooling system on traditional medical refrigerators and freezers is integrated into the walls of the unit cabinet. Replacing the cooling system is often costly and time-consuming. With the K2 Monoblock System, customers get the performance and reliability they need with the assurance of minimized downtime in the event of a system failure.