This Avantco 19386253 night curtain is a direct replacement for the one that came with your Avantco open air merchandiser. If your Avantco VOA-70 open air merchandiser's night curtain is broken or no longer working properly, be sure to replace it immediately. This curtain reduces wasted energy and keeps food cold during overnight hours. It is designed to cover most of the front of your air curtain merchandiser so that you don't need to worry about cold air escaping during off hours. It also helps to make sure your food stays cold between shifts.