This Avantco 19386290 glass upper section shelf is a direct replacement for the one that came with your Avantco black merchandiser. This shelf is crucial to the safe and effective functioning of your unit's frame, and it fits into the upper section of your merchandiser. Use it to replace a worn or broken shelf to keep your unit operating efficiently. It can also be used to keep an extra on hand. It's compatible with Avantco CAC-48 black merchandisers.