Norcold Middle Shelf 636689 (fits the 2118)Fits these Norcold refrigerator models:2118 series: 2118, 2118IM, 2118IMD, 2118BK, 2118IMBK, 2118IMBKD, 2118SS, 2118IMSS, 2118IMSSD This is the middle refrigerator wire shelf that fits on the 2118 models. It fits all models regardless of serial number.