The Wine Guardian Ductable Split System provides superb air distribution and temperature control to protect your valuable wine collection. Extremely quiet and virtually vibration-free, the split system offers maximum flexibility in system location and cellar design. The Wine Guardian Split System is ideal for cellars that have no space to install a self-contained Wine Guardian system or for applications where condenser air is difficult to exhaust. Four ductable split models are available, the 1/4 ton, 1/2 ton, 1-ton and 2-ton capacities for 60 Hz operation. All Wine Guardian split systems are certified by ETL to UL and CSA standards for safety and performance.