Feature:
1. TR21‑4 female thread, easy installation, the old one can be replaced directly.
2. Good sealing performance, no leakage when connected with the cylinder, more convenient to use.
3. Exquisite workmanship and excellent performance, easy to use this adapter to fill CO2 to Soda tank.
4. Made of high quality aluminium alloy material with high hardness, durable in use.
5. Stable performance and high reliability, adjustable valves ensure compatibility with any cylinder valve variation.
Specification:
Item Type: CO2 Refill Adapter
Material: Aluminium Alloy
Color: Black
Weight: Approx.82g/2.9oz
Interface: 1/4BSPP
Female Thread: TR21-4
How 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 Valve
1 x Gasket
1 x Wrench
2 x Sealing Rings
1 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.
- TR21‑4 female thread, easy installation, the old one can be replaced directly.
- Exquisite workmanship and excellent performance, easy to use this adapter to fill CO2 to Soda tank.
- Good sealing performance, no leakage when connected with the cylinder, more convenient to use.
- Stable performance and high reliability, adjustable valves ensure compatibility with any cylinder valve variation.






















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