The copyright 50HJ400345 Economizer Bypass Plug is a genuine OEM replacement part designed for use in copyright HVAC systems. This bypass plug ensures proper system function when the economizer is not in use, maintaining efficient airflow and reliable temperature control. Built from durable, high-quality materials, it provides a secure fit and long-lasting performance in demanding com... https://www.partshnc.com/economizer-bypass-plug-2