The USED OEM Frigidaire GRMS2773AF03 5304523054 Fridge Defrost Heater is a replacement part specifically designed for Frigidaire refrigerators. This multicolor defrost heater is compatible with the Frigidaire GRMS2773AF03 model and includes the necessary components to ensure proper functionality. Made by Frigidaire, this set includes the GRMS2773AF03 5304523054 Fridge Defrost Heater, providing a reliable solution for maintaining the performance of your refrigerator.