Scoop coaters are a key tool for proper emulsion application. Emulsion scoop coaters now come in many sizes. You can pick your size in the drop down menu from 3-21 inches (call for other sizes). Please keep in mind that most screens are measured to the outside diameter and there is about 4 inches of screen frame that doesn't need to be coated. For example: A 20x24 inch screen will only require a 16 inch scoop coater.