The New White-Rodgers 90-112 Relay Trans HVAC 120v-24vac Fan Control Center is a crucial component for controlling the fan in your  heating and cooling system. With a reliable brand like White-Rodgers and a specific manufacturer part number of 90112, you can trust that this product is designed to meet the needs of your HVAC system. This relay ensures efficient control and operation of your fan, making it an essential tool for maintaining optimal performance in your house heating and cooling system.