If the casters on your Avantco open-air merchandiser are damaged or no longer working properly, be sure to replace them immediately with these Avantco 18935861 casters for MAC-26HC, MAC-36HC, and MCAC-36 series units. When it is time to clean behind your merchandiser, these casters will make it a breeze to move an otherwise extremely heavy piece of equipment. These casters are a direct replacement for the original part.