This Range Hood 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 aluminum mesh filter is a universal accessory that can be used across several brands; check to see if your model number is compatible. Size: approx. 18" L x 12" W. Replacing this part will require no disassembly or repair experience.