This Over-The-Range Microwave Grease Filter traps grease from the exhaust air of your oven to prevent it from entering the blower and vent, potentially causing build-up and damage. If your current filter can no longer be cleaned and is not functioning properly, you should replace it promptly with this item. This grease filter is a universal accessory that can be used across several brands; check to see if your model number is compatible. Size: approx. 12-in L x 6-in W. Replacing this part will require no disassembly or repair experience.