For sale is a 2 pass cold plate in good condition. Clean, and including barbed connectors. Dimensions are 8" x 12" x 2". $75 shipped via USPS priority mail.
Is it for if you have a long set of tubing from keg to tap, to cool before pour?
For a jockey box type of setup. You put the plate in an ice bath and it cools the beer as it goes through. Saves you from having to keep the kegs cold.