Copeland 998-0510-99 Service Valve Kit with 1 1/8-inch sweat connection is a replacement valve assembly designed to control refrigerant flow and provide service access in compatible HVAC and refrigeration systems. It works by allowing technicians to isolate sections of the refrigerant circuit for charging, evacuation, maintenance, or repairs while maintaining a secure connection durin... https://www.partshnc.com/998-0510-99-copeland-serv-valve-kit-1-18-swt