There are many types of gasket and heater wire and this will not work for all walk-in models.
Stainless steel Trim for walk-in coolers and freezers. Serves as the backing plate that door gaskets adhere to. In walk-in freezers trim can accommodate heater wire which will prevent the gasket from icing up. Comes with three uncut trim pieces measuring 1-1/4 in width X 80 in length. Includes base track and cap. Old style on U.S. Cooler boxes.