SODA CO2 REFILL ADAPTER Description: This easy to use Soda Cylinder Filling Adaptor will enable you to fill your own CO2 from your larger bulk cylinder into smaller Soda cylinders. An easy and inexpensive way to fill your own Soda Cylinders at home at a fraction of the cost of getting the refills from your local store. Packing: 1 x CO2 Refill Adapter 3 x Gasket Operating Instructions: 1. Screw the adapter onto the commercial carbon dioxide cylinder 2. Screw CO2 of air cylinder into adapter 3. Open the atmospheric bottle valve 4. After about 15 to 20 seconds, the cylinder is full 5. Close the atmospheric bottle valve 6. Open the vent screw to discharge the residual gas. 7. Remove the carbon dioxide produced by the cartridge
- 1.Packing: CO2 Refill Adapter with 3 pcs Gasket, no gas leakage when connected to the cylinder,good sealing performance;
- 2.Material: The Soda Adapter is made of premium brass material, it is durable, wear-resistant;
- 3.Easy Use: The Soda Refilling Station Adapter can easily inject carbon dioxide into the water bottle;
- 4.Widely: The Soda Bottle Adapter can be used with large CO2 tank with CGA320 connector or W21.8-14 connector CO2 tank valve;
- 5.Quality Guarantee: Any Problem for the soda bottle adapter, Money Back or Replacement.



















M.Harms –
Finally an easy way to refill them. I tried the hose adapter to go from my homebrew CO2 tank straight to the Sodastream, but it ended up tasting like factory. Rather than making one myself which is clean, I first tried this adapter for a refill option. Welp it is easy enough that I’m done – this is my pandemic sodastream solution. The bottles end up with WAY MORE gas this way than when you buy the refills at the store, they last way longer.And it goes a little something like this:1 – Empty bottle to be refilled goes in the freezer overnight. I tried with one in the freezer for just a few minutes and it worked fine, just held less gas. I keep an empty in the freezer all the time now. General gas equation PV=nRT means colder bottle holds more gas.2 – Install the o-rings right (white washer on tank side, black o-ring on sodastream bottle side, and the little o-ring for the vent valve). I applied a thin film of keg lube on the washers and rings because why not.3 – Crank the adapter onto your source CO2 tank, with valves shut on the tank and the vent valve on the adapter. Use a wrench on the tank connection. You can leave it on the source CO2 tank until you want to use the tank for something else.4 – Crank the frozen empty bottle onto the open end of the adapter, hand tight like in the sodastream machine.5 – If you have a regular homebrew CO2 tank like me, you have to hold it upside down so the liquid CO2 wants to fall into the frozen bottle. Then you open the tank valve VERY SLOWLY until you hear the CO2 flowing. You can open it wider slowly once you hear flow, but if you open too much too fast it will trigger an interlock in the bottle pin and shut off the flow completely. Just fill it slowly, takes about two minutes but you’re saving mad cash.6 – Once you think you’ve filled it, shut off your tank valve. Then open the vent valve on the adapter to release the compressed gas inside the adapter and allow the bottle pin to shut (pressure holds it open for this refill process, nothing touches that center pin). Then take off your newly-refilled bottle and wonder at its weight. In fact, I always use a food scale to measure the bottle empty and full, to reassure myself.The sodastream bottles last us at least two or three times as long as a refill as compared to when they’re new refills from the store. Mmmhmmm…. Go. Figure.
Charles E Rittenburg –
I bought this so I could refill my sodastream CO2 tank from my 5 lb home brew CO2 tank. It works well enough, but I also don’t get a full charge in the sodastream tank. I usually find I can carbonate about ten 1L bottles before the pressure drops noticeably. Of course I have everything I need to refill it again so its not a terrible thing, just slightly annoying.NOTE: I have noticed that not all sodastream CO2 tanks are created equal. If you look at the picture I uploaded this works on the tank with the small diameter pointed plunger valve but not for the large diameter flat plunger valve. It seems that the pressure is distributed too much on the large plunger valve to get it to depress.
Ryan W –
The price is cheap so it has that going for it but it is difficult to use. I wish it did not have that little pressure relief knob. The gaskets are hard to put in and they tear easily. Even when the gasket is not torn you get air coming out of it which prompts you to tighten it more until the gasket tears. Unrelated to this product itself (but the process) I faced more difficulties. My CO2 tank does not have a siphon so I had to flip it upside down. Not a big deal.. but to make matters more difficult because I have the newer sodastream tank with the pin I have to repeatedly mess around with slowly opening the valve. Each time you fail you have to relieve the pressure and try again. I dont know if this unique to my CO2 tank but in order to fully close it you have to REALLY tighten it. Because it is closed so tightly, it is really hard to open it slowly. This whole process caused a lot of stress in my life! I finally ended up purchasing one of the more expensive adapters with the hose that hooks directly from the CO2 tank to the sodastream. I was skeptical at first because I read reviews claiming there was an off taste. I can’t speak for the black hose products but I purchased the one with the metal hose and I haven’t had any off tastes. I’m so glad I will never have to go through that annoying process ever again.Additional tip: if you manage to get the relief valve closed and working nicely, do not use it or mess with it! Just relieve the pressure with your wrenches by screwing off the sodastream from the adapter.
Bethany –
This product works exactly as intended, if you know how to use it hence only 4 stars. If you get one of these make sure you know if your larger tank has a dip tube or not. Mine does not, so I hold my tank upside down, and open the pressure the smallest amount I am able or the pop valve on the soda stream canister will pop and you will have to release the pressure with the knob on the side. Freezing the soda stream canister before you start helps as well.
B. Harris –
I had to use without the washer. I am looking for a different washer to try.
Deggie –
Follow the Youtube videos on using these types of connectors to refill the Sodastream canisters, but don’t use the small side mounted screw valve to relieve pressure once finished, it’ll blow out the tiny little o’ring. When finished filling just unscrew the Sodastream bottle. I put a rag over the connector while unscrewing to contain the little spew of CO2. Also, freeze the Sodastream canister before trying to refill, it works much better. I use a 5lb CO2 tank and have to BARELY open valve to keep the newer Sodastream canisters valve from shutting off gas flow. Apparently designed this way to keep us from refilling easily. Older canisters don’t have this issue.