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, replacing this accessory may alleviate the issue. Includes (2) filters measuring approx. 12″ L x 6″ W each. Installing this accessory will require no disassembly or repair experience. You must unplug the range or shut off the house circuit breaker for the appliance before installing.