The Vent Grille is an OEM part for Whirlpool microwaves. It is designed to cover the vent opening, protecting the internal components of the microwave while allowing proper airflow. The grille measures approximately 30" x 3.5". Causes of a bad vent grille can include accumulation of grease and debris, physical damage from impacts, or warping due to heat exposure. A compromised vent grille can hinder airflow, leading to potential overheating and reduced performance of the microwave. Symptoms of a bad vent grille include: Visible cracks or breaks in the grille Restricted airflow The microwave overheating or shutting off unexpectedly Unusual noises coming from the vent area This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.W10250593 (AP4411889) replaces 1515061, AH2355583, EA2355583, PS2355583, W10117919, W10189677, W10242802.