This Over-The-Range Microwave Charcoal Filter Traps Grease From The Exhaust Air Of Your Oven To Help Prevent It From Entering The Blower And Vent, Potentially Causing Build-Up And Damage. If Your Current Filter Is No Longer Functioning Properly, Replacing It May Alleviate The Issue. This Is An Accessory Compatible With Several Major Brands; Check To See If Your Model Number Is Compatible. Size: 5" W X 5" L. Replacing This Accessory Will Require No Disassembly Or Repair Experience.