Feature:
1. High quality carbon dioxide cylinder adapter, suitable for a variety of soda machines.
2. Good sealing performance, no air leakage when connected with the cylinder, more convenient to use.
3. It can be mounted on the cylinder of TR21-4 threaded soda cylinde to play the role of conversion interface.
4. Made of high hardness materials, durable and wear-resistant, long service life.
5. The surface is electroplated, bright as a mirror, corrosion-resistant, not easy to oxidize and rust.
Specification:
Condition: 100% Brand New
Item Type: CO2 Cylinder Adapter
Weight: Approx. 76g / 2.7oz
Product Length: Approx. 3.6cm / 1.4in
Female Thread Size: TR21-4
Male Thread Size: CGA320
Uses: The adapter is mounted on the TR21-4 threaded soda machine cylinder to act as a conversion interface
Threaded Interface: Large carbon dioxide cylinder threaded CGA320 or 0.825-14NGO (US TR21-4, G1/2)
Applicable Countries: USA, Canada, Brazil, Colombia, Philippines
Package List:
1 x Adapter
1 x Gasket
Note:
1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.
2.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.
- High quality carbon dioxide cylinder adapter, suitable for a variety of soda machines.
- Good sealing performance, no air leakage when connected with the cylinder, more convenient to use.
- It can be mounted on the cylinder of TR21-4 threaded soda cylinde to play the role of conversion interface.
- Made of high hardness materials, durable and wear-resistant, long service life.
- The surface is electroplated, bright as a mirror, corrosion-resistant, not easy to oxidize and rust.











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Chris –
The threads on this aren’t long enough to properly seal into the CGA320 on a FZONE Mini 3.0 Regulator. It will allow gas to escape.
F. Nies –
This was purchased to use with home beer brewing set up. Works for both carbonating and serving beverage connects to standard regulator for CO2. Appears to be a good quality well-made hard nickel plated metal. If you were looking for an alternative to large CO2 tanks especially for service, look no further this little coupler works great and on the cheap!
Nino –
Good
Mark Taylor –
Was going to use on soda stream cylinder did not fit
MarkP –
This device allows you to attach a Sodastream CO2 canister to a standard regulator. It comes with no instructions. Here is how you set it up. There is a small set-screw that needs to be adjusted to depress the valve at the top of the canister. First loosen the set screw (turn counter clockwise). Attach the device tightly to the canister. Now tighten the set screw until it just touches the top of the valve. Now remove the device and tighten the set-screw one half a turn. Secure it in place with a drop of super glue or Lok-tite. Now attach the device to your CO2 regulator. Finally, attach to canister to the device/regulator combo. As you do so, that half-turn will open the valve and pressurize the system without allowing all the gas to drain into the room. Thatβs it!
Amazon Customer –
Device came with Male Thread for Tank Connection…Needed Female Thread. The Connection to the Soda Stream tank was just fine.Returning this looking for correct thread.