This Avantco 17812518 top door is a direct replacement for the one that came with Avantco MC49-HC milk coolers. It is a vital part of your unit's door assembly, working to create a firm door seal and keep the cabinet set to the right temperature. This top door's design allows you to keep contents safe during off hours while allowing students to easily access the beverages during service. A broken or malfunctioning door can prevent your unit from maintaining specifications and cause strain on other components, so be sure to replace it promptly.