The Whirlpool W10259232 Microwave Stainless Steel Vent Grill is a structural component designed to direct airflow and protect the ventilation opening on compatible microwave systems. It operates by allowing air to move through the front vent channel while shielding internal parts from debris during regular operation. Installed across the upper front section of the microwave, the grill... https://www.hnkparts.com/w10259232-whirlpool-grill-vent-microwave-ss