.Material: Copper and Brass Package contents: 1 Piece Split AC Valve Usage: Refrigerant charging 100% tested and genuine product Refrigerant Compatibility: R22, R32, R134A, R410A and R407C. These valves are used as service valves in split air-conditioning systems. These valves isolate sections of a system for servicing and provide a means for charging refrigerant into a unit. Removable flare nut provides easy connection of liquid and suction lines. We ensure that the product is completely leak proof.