It is an authentic item which is supplied by the original equipment manufacturer for use with Broan range hoods. The purpose of this filter is to trap grease and dust from the air that goes through the unit. It provides an identical replacement for a faulty or a missing component that was included with a new equipment. Check the owners ma...Read morenual and the diagrams of your model for the correct application of this part. Note, this high-quality set includes two durable aluminum filters. Replacing these components does not require any tools, simply remove the old filter and replace it with the new.