Features: 1TR214 female thread easy installation the old one can be replaced directly. 2Good sealing performance no air leakage when connected with the cylinder more convenient to use. 3Exquisite workmanship and excellent performance easy to use this adapter to fill CO2 to Soda tank. 4Made of high quality aluminium alloy material with high hardness durable in use. 5Stable performance and high reliability adjustable valves ensure compatibility with any cylinder valve variation. Specification: Item Type: CO2 Refill AdapterMaterial: Aluminium AlloyColor: BlackWeight: Approx.82g/2.9ozInterface: 1/4BSPPFemale Thread: TR21-4How to Use:1. Use an appropriate wrench to connect the regulating valve to the adapter.2. Hold the cylinder firmly with one hand and fasten the adapter/regulator to the cylinder with a wrench.3. The pin in the adapter will depress the valve on the cylinder and open the gas flow.4. Continue to tighten the adapter on the cylinder. Package List: 1 x Adapter Valve1 x Gasket1 x Wrench2 x Sealing Rings1 x Screw Note: Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.