This Avantco 178GSKT17555 replacement door gasket is designed to fit your existing GDC-49-HC series merchandising refrigerators. This gray, vinyl gasket ensures that the refrigerator door closes with a tight seal, trapping cold air to maintain food safe temperatures and save energy. The gasket is a vital part of your unit's door assembly, so be sure to inspect it regularly for tears and replace it if it's damaged.