This Range Hood Grease Filter Traps Grease And Particulates From The Exhaust Air Of Your Oven To Prevent It From Entering The Blower And Vent, Potentially Causing Build-Up And Damage. This Aluminum Mesh Filter Is An Accessory That Can Be Used Across Several Brands; Check To See If Your Model Number Is Compatible. Size Is Meant For 30" Range Hood And Is 10-1/2" H X 9" W. Installing This Accessory Will Require Basic Hand Tools, Some Disassembly Of The Range Hood And Novice Repair Experience.Helpful Tip: Replace Your Your Range Hood S Filter Every 6 Months To Maximize Performance And Efficiency.