The Reznor 146465 Auto Fan Limit Switch is a genuine replacement part designed to regulate fan operation in heating systems. With a temperature range of 105°F to 135°F, it ensures the blower activates and deactivates at the proper settings for safe and efficient performance. Built for durability and reliability, this limit switch helps protect equipment from overheating while maintain... https://www.partshnc.com/105-135f-auto-fan-limit-switch