This Avantco 17812314 evaporator drain pan is a direct replacement for the one that came with your Avantco refrigerator. It is a vital part of your unit's drain system, working with the other components to help your unit remove condensation. A broken drain pan can prevent your unit from maintaining specifications and cause strain on other components, so be sure to replace it promptly. It has a drain line connection diameter of 5/8". It's compatible with select Avantco AWT, AU, and SS series refrigerators.