10PCS HVAC Service Access Valve -Schrader System Vacuum – 4.72″ SAE valve – Long
10PCS HVAC Service Access Valve，Schrader System Vacuum 4.72″ Copper Filling Access Valves + Core & Cap Remover 1/4″ SAE x 1/4″ OD x 4″ stem AC Refrigeration Kit. Widely used in the refrigerant system.