The Whirlpool W10843943 Vent Damper helps control airflow from your microwave’s ventilation system for more effective air movement. This replacement component regulates the direction of exhaust air, opening and closing as needed to support proper vent operation. It is designed to fit compatible microwave models and can be used to replace a damaged, worn, or malfunctioning damper that ... https://www.partsmelange.ca/whirlpool-w10843943-vent-damper-for-microwave