The Imperial Cal 2009B is the correct compatible replacement for the following:
Imperial Cal 2009B Compatible Aluminum Microwave Filter is a standard compatible range hood filter that is used in ducted and ductless range hoods, as well as over the counter microwave ovens. This range hood filter manufactured by American Metal Filter Company, is made with an aluminum frame that surrounds layers of expanded aluminum and aluminum foil.
Imperial Cal 2009B Range Filter Specifications:
The Imperial Cal 2009B Compatible Aluminum Microwave Filter removes grease from kitchen air and is washable for extending the life of the filter.