Microwave Grease Filter WB06X10596 Replacement For Many GE Microwaves Sometimes rinsing it off isn't enough and the filter on your microwave needs to be replaced in order to keep grease out of the microwave venting system. This grease & air filter can be used in both vented and non-vented microwave ovens and is constructed primarily of aluminum. This is a replacement grease filter also known as a grease air filter or a range hood air filter. This filter collects grease particles from the air while you are cooking. Please ensure the above dimensions match your existing filter before purchasing this oven filter. Also make sure your microwave does not require two filters, as some do.