This is a refrigerator defrost heater, metal bracket. Includes 1 glass tube heater and 10 - 1/2inch long ( Just The Glass) from end to end size 30.5 cm Precise replacement parts part number wr51 X 10055 It has a metal shield on it and is rated at 725 . Replace the numbers ap3183311 and ps303781. This product is suitable for dedicated refrigerator models, including and .