WhisperKool Extreme WhisperKool XLT Koolspace Aquacool  WhisperKool Extreme Series WhisperKool Extreme Series The WhisperKool Extreme series cooling units are designed to overcome many limitation of the XLT series. Aside from higher cooling capacities, improved performance, and longevity; flexible ductability options, and remote controls make the Extreme series much more versatile. The WhisperKool Extreme series is easy to install and uses the same size opening as the XLT series; making an upgrade an excellent option for previous clients. Please contact your local Apex branch to find out more about these units. Our design consultants will be happy to assist you in determining if this is the right solution for your cellar. © 2005-2008 Apex Wine Cellars | CellarTec Services: (888) 999-9749 x 242 or email, M-F 7:00am to 4:00pm Pacific Time