Feature: 1. It consists of two parts, can be disassembled, more convenient to use and install. 2. With release valve, once the refill is completed, can safely release the remaining. 3. Sturdy and beautiful, easy installation and long service life, practical accessories. 4. Pressure gauge ensures that the pressure does not exceed the container pressure specification. 5. Made of high quality material, durable and reliable, the broken one can be replaced. Specification: Condition: 100% Brand New Item Type: Cylinder Refill Adapter Material: Electroplating + Aluminum Thread Size: G1/2-14 / TR21-4 Thread Interface: Large carbon dioxide cylinder thread CGA320 or 0.825-14NGO (US TR21-4, G1/2) Applicable Countries: United States, Canada, Brazil, Colombia, Philippines Adjust Valve Length: Approx. 6cm / 2.4in Release Valve Length: Approx. 10cm / 3.9in Weight: Approx. 613g / 21.6oz Instructions: 1. Connect the refill adapter to the cylinder. 2. Screw the adapter for SodaStream into the refill adapter. 3. Open the valve on the cylinder to release the gas. 4. Turn the shutoff valve to release the gas. 5. Turn the knob of the valve for SodaStream to inject gas into the cylinder. 6. You will hear gas flowing into the cylinder. Refilling takes roughly 30 seconds. 7. Once refilling is complete, stop the CO2 by turning the shutoff valve. 8. Isolate for SodaStream cylinder by turning the adjuster knob. 9. Release the residual gas by opening the release valve. 10. Remove the cylinder for SodaStream from the adapter. 11. Repeat the refill process for SodaStream every cylinder. 12. Once finished, close the valve on the cylinder.. Package List: 1 x Adjust Valve1 x Release Valve3 x Gasket2 x Rings1 x Screw1 x Right Angle Wrench