Package Included:
1 * CO2 Cylinder Refill Adapter Hose(Optional length, With pressure gauge)
1 * Bag of fittings
1 * user’s manual
Specifications and parameters:
Material: Stainless steel and 100% solid brass
Status: 100% brand new, With pressure gauge
Hose Length: 24 inch, 36 inch (Optional)
Working pressure: 3000 PSI
Thread For Large CO2 Tank: CGA320 G1/2-14
Fits soda stream tank thread: TR21-4
Instructions for use:
Before the inflation process, please put your small soda cylinders in the freezer to cool, Ensure that the small cylinder can flush more carbon dioxide.
1. Confirm the On/Off valve (A)and the release valve(C) are closed, rotating the pin switch(B) of small cylinder to the top(anticlockwise).
2. Connect the fill station connector(A) to the big CO2 bottle. ( use the wrench to tighten it, if your big Co2 tank don’t have siphon inside, you need to place the big Co2 tank upside down )
3. Connect the small cylinder to the soda Co2 adapter(B).
4. Rotate the pin switch(B) of the adapter to the bottom(clockwise).
5. Open the big Co2 air tank’s valve.
6. Open the On/Off valve(A) slowly, and close it after 2-3 seconds, and then open the release valve(C) to exaust the excess air inside the small cylinder, and then remember to close the release valve(C) after this step.
7. Open the On/Off valve(A) slowly again to do the inflation process, and last for 25-30 seconds, then close the On/Off valve(A) and the big Co2 tank’s valve.
8. After fulling of gas, contrarotate the pin switch(B) to the highest position and open the release valve(C) to exaust the excess fas in the hose.
9. After inflating, unscrew the small cylinder.
Precautions:
If the inflation cannot be completed, Please check
- 【High Quality Material】The 24 inch hose is braided by high quality stainless steel and is tightly connected with 100% solid brass fittings, with good air tightness, 3000PSI working pressure, strong and durable, safe and reliable. The refill adapter is equipped with a pressure gauge and has two on-off valves (for filling and venting) for easy and safe use.
- 【Inlet Thread】Filling adapter can be used to refill small CO2 tanks from larger CO2 tanks, the filling adapter is [US CGA-320(G1/2)], only suitable for the United States, Canada, not suitable for UK, Germany and other countries, if you are giving it as a gift, please make sure to be clear.
- 【Outlet Thread】The outlet thread for connecting the CO2 cylinder is TR21-4, which is suitable for most CO2 cylinders (not suitable for CO2 cylinders other than TR21-4 or clip-on design), especially not suitable for paintball tanks, As well as the latest sodastream Terraxi series water dispenser, they look similar, but the threads are not the same, they are not universal, please confirm before purchasing!
- 【Precautions】If the vial thimble is too thick and short to be inflated, the hose will expand, please replace the thin thimble bottle. The large cylinder should have sufficient pressure. If there is no siphon or liquid CO2 in the large cylinder, the CO2 atmospheric tank needs to be inflated upside down, please read the instructions carefully. Also, if you freeze the cylinders a few hours before filling, it will make filling easier and fill more gas.
- 【Quality after-sales】We are very confident in this product, so we provide one year quality guarantee, for whatever reason, you are not satisfied, please feel free to contact us, you will get a satisfactory answer.

























Andrew Newman –
This product is high quality and works exactly as advertised. The instructions are a bit slim so I thought I’d walk folks through it1) If you have a bulk industrial gas supplier they will “rent” you a tank that you just bring back when empty to swap for a full one. After the deposit you just pay for the gas. The larger the tank the cheaper the CO2 is per weight but the more expensive the deposit is. The label should read “food grade” CO2.2. Unless the tank has a siphon tube in it, you will have to turn the tank upside down to fill the Sodastream cylinder. The larger the tank the more awkward this will be. Also you need to assure that there is no chance the tank will slip and the top valve will snap off. This is EXTREMELY dangerous. Use common sense.3. Modern Sodastream cylinders are designed to be difficult to fill by consumers. Sodastream doesn’t want you to do this and they make it hard. The valve will close internally if too much pressure is applied when filling it. When opening the main 1/4 turn valve handle, open *slowly* until you just start to hear the hiss. Weigh the empty sodastream cylinder before and after. The small ones hold a maximum of 453g of CO2. I can usually get between 400-420g in if I freeze the cylinder overnight.
Jeniffer DeVries –
Almost 5 star product. I use this to refill sodastream cannisters, and just tried it for the first time. If you follow their posted video instructions (typos and all) you should get some mostly full cannisters with little fuss. I wasn’t expecting the amount or volume of exhaust – open the valves slowly on the “exhaust” steps or you may be startled. I wish I had bought the 24 inch tubing model, as I think that would waste less CO2 (less to exhaust) and 36 inch tubing is a little bit clumsy to work with.Docking 1 star because:- mine leaks a tiny bit on the end that attaches to the sodastream cannisters. I think next time I refill cannisters I’ll try to remember to put a little silicone tape on the threads.- my first attempt at ordering this, I received the wrong item (I got sent one of those direct taps that let you bypass the little cannister altogether). Had to send it back for a refund and when I went to reorder, the price had gone up about $5.
BlueMack –
I had a problem with it at first, there was a clear plastic washer in it that I left in, I got the larger co2 cylinder with a dip tube. The clear plastic washer didn’t have the same size orifice valve and punched a small piece out which then clogged the opening. Once I cleared “ found” that it was fine. Remember your trying to do something that the maker of these bottles doesn’t want you to do and they have made it as difficult as possible. It took me several tries to finally fill a bottle am I’m getting 1200 gram to 1250 fills. I had a friend show me what he does, in short you leave the fill bottle closed, attach the SS bottle open the exhaust valve slowly, very slowly turn the threaded pin screw in until you hear it venting. Close the exhaust valve open the fill valve then the bottle valve very slowly, it’s best if your in a quiet area so you can hear the gas flowing. Keep slowly opening the valve until it stopes filling, close the bottle valve , un screw the pin open exhaust, now screw in the pin and drain some out of the bottle until the bottle starts to get cold, repeat until it’s full. You will need a scale to keep track of ware you are. It does work just needs patience and trial and error
nowinvirginia –
this device sort of works. i was able to fill a SodaStream tank about 1/4 to 1/3 it’s usual capacity. The gauge on the unit is useless, in fact it distracts as gas leaks out around the gauge connection. So, for the amount of money being charged I think the product is less than stellar.
PIERRE –
Make a good job…
Tom H. –
Works great. I have refilled 6 tanks with no issue. Just remember to freeze the tanks before refilling them, and if your filling tank isn’t a siphon tank, you have to flip it upside down.
residualfail –
I never touched co2 tanks before and I was a little intimidated by the idea of refilling sodastream cylinders for obvious reason.They included directions that were easy to follow and it did the trick. The newer sodastream cylinders are mean so you can’t just screw down the pin all the way or the cylinder locks and you won’t be able to fill. I screwed the pin all the way down, then backed it out slowly.
A. Cole –
Follow the directions. Tricky, but works as promised. I’m now saving big $ on refills, paying about $2/refill vs $15 at store.