This genuine replacement part is an evaporator used in refrigerators. The evaporator is the part that exchanges heat to cool the refrigerator. It is the component of the refrigerator that absorbs the heat from the air inside, turning it cool through absorption. If the refrigerator is no longer cooling properly, this could mean it's time for a new evaporator.This is a genuine replacement evaporator compatible with Frigidaire, Electrolux, Gibson, Kelvinator, and Westinghouse brand refrigerators.5303918274 (AP3210992) replaces 5303918205, 5303918250, 5303918431, 938464, AH726193, EA726193, PS726193.