Part Number: #12800 Manufacturer: Elkay Manufacturing Mfg Number: 66703C
This drier is from Elkay, part number 66703C. It is a copper cylinder that is in between the liquid line and the capillary tube. It is designed to keep moisture, dirt, and metal chips from entering the small bore diameter of the capillary tube. The drier element removes moisture which could freeze in the capillary tube, thus preventing any restriction in the system. If the compressor fails in the drinking fountain, the drier will need replaced.