5 Pcs Service/Access Valve 1/4 SAE * 1/4 OD * 4 Stem Core AC Refrigerator Air Conditioning Refrigeration Accessories Specification: new Material: metal Size: as shown in picture Feature: Strong and durable. As a bleeding and test port on the fuel rail of some fuel injected engines. On many refrigeration and air conditioning systems to allow servicing, including recharging with refrigerant. By plumbers conducting leak-down pressure tests on pipe installations. Used on automobile and bicycle wheels, but also for many other applications. Suitable for vacuum, charging, pressure check up and other applications. Package included: 5x valve stem Note: Please allow 0-1cm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. _x000D_ _x000D_ _x000D_