- Brand: HK
- Color: Gold
- Material: Aluminum
- Perfect CO2 Adapter: This CO2 adpater fit for Soda Stream DUO/Terra/ Art sparkling water maker, it is an adapter that can connect the soda terra machine and original blue Co2 Cylinder. You can also use this adapter to connect old soda hose with TR21-4 Male Thread to new soda terra water maker.
- Upgrade Design: Upgraded threaded design, you can use the old Soda stream Co2 bottles(blue) and the new Soda Stream CO2 bottles(pink) in the Soda stream Terra. Tips: this adapter only fit for Soda stream 425 gram blue CO2 cylinders, Not fit for other brands CO2 cylinders.
- Easy To Install: One end of the quick adapter connects to the Soda stream terra sparkling water maker, the other end of the TR21-4 connects to the Soda stream 60L CO2 cylinder.
- High Quality: The soda adapter is made of high quality aluminum, strong and durable, resistant to corrosion and oxidation.
- Convenient: You can continue use your large CO2 60 liter refill bottle and save yourself the hassle of swapping in the shop or no market near offers the new bottles,the time savings alone were worth it to you.


















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cpip –
Terrible photo… but you get the point. This thing does what it says it’s going to do. The anodized finish is nice. The threading and all parts were free of burrs.100% leak free so far! I’ll update if I have any issues.10/10 would recommend!
Thomas Zamudio –
This is advertised as working with the new pink tanks, but I decided to try it with the original blue tanks and the threading is the same.I had originally gotten a different adapter that goes directly into the sodastream, but found the build quality really bad and it would leak CO² out of the sodasteam itself even if I didn’t push the button. Using the original tank (nozzle?) Is definitely the way to go!Removing the top off the sodastream tank can be tricky, but just add a little plumbers tape on the threads when you put it on the adapter and it’s off to the races. I’m finally enjoying my soda stream again!
Wayne –
I was hoping to use the old blue CO2 canister with the newer Sodastream terra. This adapter doesn’t screw all the way in (small gap) and thus when i tried to use it in my new Sodastream terra, it doesn’t work.
Leo –
Doesn’t screw down far enough to work. Stops before it’s seated all the way down and pin can’t depress blue bottle pin.
Julie C –
We couldn’t get it to work in new model sodastream with old canisters. Had to send it back
jzap5 –
Does NOT fit the blue bottles as pictured. This adapter does not seat all the way when screwing into the blue bottles. I even had someone else attempt and we just couldn’t make it fit.
Jennifer –
Okay, that’s misleading. It did work THE FIRST time you install. And then, promptly after, it no longer works. So one ans done. But not even one full canister. Just the first squirt into the bottle. After that, nothing. Not sure it’s worth that much for bubblizing one bottle one time and then never working again. Probably just better off buying the correct canisters.