This Avantco 17814104 defrost element is a direct replacement for the one that came with your Avantco glass froster / plate chiller. It is a vital part of your unit's defrost system, working with the other components to help your unit remove ice buildup. A broken or malfunctioning element can prevent your unit from maintaining specifications and cause strain on other components, so be sure to replace it promptly. It's compatible with Avantco GF50-HC-S and GF50-HC glass frosters / plate chillers.