The Mueller Industries AW17868-2 1/8 Inch Ball Valve is a durable flow-control component designed for HVAC and refrigeration applications. It operates by using a rotating ball with a central opening to start, stop, or regulate refrigerant flow through the system. This valve is commonly used in air conditioning units, refrigeration equipment, heat pumps, and related HVAC piping systems... https://www.partshnc.com/aw17868-mueller-industries-2-18-ball-valve-24vac