There are many types of gasket and heater wire and this will not work for all walk-in models.

Heater Wire Trim / Gasket Backing Plate

Stainless steel Trim for walk-in coolers and freezers that door gasket adheres 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 in width X 80 in length.