This Avantco 17810423 33 1/4" evaporator coil is a direct replacement for the one that came with Avantco HBB-50 and HBB-80 bottle coolers! 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.