This Avantco 18939994 evaporator fan blade is a direct replacement for the one that came with your Avantco air curtain merchandiser. It can be used to replace a broken or missing part on your Avantco air curtain merchandiser. To keep your unit operating efficiently, make sure to replace a broken fan blade promptly. It's compatible with Avantco WVAC-28HC and BVAC-28HC air curtain merchandisers.