This Avantco 17816833 evaporator coil is a perfect replacement for the one that came with your SS-WT-27 or SS-UC-27 series unit! An essential part of any refrigeration system, the evaporator coil runs refrigerant through a coiled frame, absorbing heat from the interior of the unit and cooling it down. It can be used to quickly and easily replace a broken coil, minimizing downtime.