In the US there are fewer than a dozen companies who make commercial and residential wine cooler systems that are designed for long-term wine storage. Among them are WhisperKOOL, Wine Guardian, and CellarPro. Wine Racks America works with these companies because of their solid reputation for producing reliable, quality products. Each of these manufacturers offers split system cooling units for wine cellars. One of our most popular products is CellarPro Split Systems, which have been refined and improved upon over the decades. Today, CellarPro offers some of the finest systems available for long-term wine storage.