Features Brass material: the liquid safety valve is made of thickened brass with high pressure resistance and can withstand the pressure of the refrigerant. STANDARD THREAD This refrigerant filling valve features a standard inch thread, 1/4 inch male thread and 5/16 inch female thread for a tight connection without slipping. Wide application: this refrigerant safety valve is suitable for refrigerants R22, R410, R134A, R404 and offers a wide range of applications. NON SLIP The knurling button provides a comfortable feeling, and the metal nut is non-slip and durable, which ensures a stable and reliable connection. Easy to use: thanks to the button connection and the synchronization of the wire shaft, the hose can be automatically tightened by simply turning the button at the end without leakage. Specification: Item Type: Refrigerant Valve Material: brass. Sealing method: 4-layer sealing Applicable refrigerant: R22, R410, R134A, R404. Refrigerant interface: inch thread (1/4 inch male, 5/16 inch female) Package list: 1 x refrigerant valve. Note: Adjust the appropriate model size before installation and use. Package List 1 x Refrigerant Valve