Add or replace a shelf in your Avantco UBB2448 and UBB2448G back bar units with the Avantco 178SHLFUBB48 17 5/8" x 18 1/8" shelf! This plastic coated shelf quickly swaps out with the one that came in the right or left side of your refrigerator so that you can keep using it throughout the day. Shelf clips sold separately.