Products: Refrigerant filling access check valve copper tube air conditioner refrigerator valves replacement. Easy Install: Refrigerator check valve liquid nozzle is easy to install, 4 different sizes of joints to meet most models of refrigerators(As your choice) Quick Connector: Check valve connector is easy to operate, detachable copper adapter, longer maintenance time. High Quality Material: Refrigerator check valve filling nozzle made from materials to ensure durability and long time use. Widely Used: Air conditioner refrigeration access valve used on many refrigeration and air conditioning systems to allow servicing. Specification: Material: Brass Size Chart: (As your Choice)Total Length: 74mm / 115mm / 119mm / 63mm Adapter Diameter: 6.3mm / 0.24inch Package Includes: 1pcs Air Conditioning valve Note: Please allow slightly errors due to manual measurement and different monitors.