You Can Find the Model Number under the Hopper Lid on a Sticker. The First Section of Numbers in the Serial Number is the Model Number. For example：TFB42LZB
-42%
-28%
-37%
-37%
-33%
-23%
-42%
-27%
-33%
-54%
-35%
-33%
-41%
-45%
-19%
