CGA-320 CO2 Cylinder Refill Adapter Bottle Connector CO2 Tank Soda Maker Accessories with Hose for Filling Soda Tank (36Inch)
$48
- The refill adapter can be used to refill small CO2 tanks from larger CO2 tank, with 2 turn on/off valves, convenient to use.
- The refill adapter is US CGA-320(G1/2), working pressure: 3000psi, please make sure your CO2 tank is the same size. And this adapter can’t be used for paintball.
- If the small bottle thimble is very thick and cannot be inflated, please replace the thin thimble bottle, otherwise it will not be inflated.
- The big CO2 bottle should have enough pressure, if it is liquid CO2 in the big bottle, invert the big CO2 bottle to inflate.
Specification: CGA-320 CO2 Cylinder Refill Adapter Bottle Connector CO2 Tank Soda Maker Accessories with Hose for Filling Soda Tank (36Inch)
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5 reviews for CGA-320 CO2 Cylinder Refill Adapter Bottle Connector CO2 Tank Soda Maker Accessories with Hose for Filling Soda Tank (36Inch)
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Rich –
The instructions for using this adapter could have been more clear. I had quite a bit of trouble with refilling Soda Stream with this at first, in spite of watching numerous videos. I even went so far as preparing to modify the tank valves. YOU DO NOT NEED TO MODIFY THE TANK VALVES, EVEN FOR THE NEWER TANKS. I was only able to put 9-11 oz. of CO2 in the tanks verrrry slowly at first. Then I watched a couple of videos from an Australian company that sells a different adapter. The principles are the same; They explained why it was important to put the bottle in the freezer before filling it, and explained how to adjust the knob that pushes in the valve on top of the tank. Once I saw those videos, I was able to fill any kind of tank with 13 oz. of CO2 in about a minute.
The reason you need to freeze the bottle is that the liquid CO2 coming from your supply tank immediately turns to gas when it hits the warm tank. This increases the pressure and consequently the resistance to filling. Freezing the tank keeps the incoming CO2 as a liquid and keeps the internal pressure lower.
I was cranking the knob that opens the top valve all the way down. The Australian video explained that doing so pushes the valve far enough down to close it again. Instead, you should crank it all the way down and then back off 1/2 to 1 turn.
Once I made those two adjustments, filling went smoothly and quickly.
E. Z. –
First of all: since I bought it in Feb ’21 it has worked like a charm (once you learn the technique). Haven’t bought any carbonated drinks since then, filtered water (and maybe some fruit syrup) is all I need. And, of course 20-lbs CO2 tanks (W/DIP!) from my local welding supplier.
However, just today, as I refilled my canister the little golden knob, that connects to it got stuck and won’t budge in either direction (close or open). For safety reason I had to vent the freshly pumped CO2 through the venting valve to disconnect the small canister. The unit is now completely unusable.
DEAR MANUFACTURER: PLEASE HELP!
I would really hate to have to buy another unit now.
Bruce B –
I had an older unit to refill cylinders but the seals on it failed. That company went out of business, so I was happy to find this device which essentially does the same thing without proprietary internal parts with seals to wear out. Using only a proprietary connector to attach the Soda Stream cylinder, the rest of the unit is off the shelf parts, including the valves. The adapter has a nice slow screw down ‘pusher’ to depress the pin on the cylinder slowly, making attaching and detaching easy if you understand how to close it and bleed the lines before detaching.
Advice for those wanting to refill tanks:
– freeze your empty cylinders before trying to refill (it will greatly increase the amount you can transfer into an empty cylinder as expanding gas in a warm cylinder prevents proper transfer)
– weigh your tank before and during filling (you need a scale with tare button) to get a proper fill. Over filling tanks is dangerous and can damage your carbonator! A large Soda Stream tank (130 liter) weighs almost exactly 3 pounds empty and 5 pounds full. (I don’t have any 60 liter tanks.)
– use a syphon tube tank as your CO2 supply (it is dangerous to tilt a normal tank to get the liquid CO2 to flow as shown in the video, and syphon tube tanks are readily available. and filling from a gas tank only gets you a tiny amount transferred)
– when done, first start by opening the cylinder adapter valve (on top, counter clockwise until it stops) and then slowly opening the bleed valve (open ended) to remove pressure before removing cylinder.
– last step is to always turn off the valve on the big CO2 tank even if the first valve on the refill adapter is closed. CO2 tanks sometimes leak slowly from the valve ‘neck’ if left open even a bit. Don’t waste gas!
jessica –
I bought this to refill the newer 14.5oz Soda Stream CO2 bottles that have the check valve in them to discourage end users from refilling the bottles themselves. I was worried because of a lot of the reviews stating “Don’t buy” or “Does not work” but this couldn’t be further from the truth. I couldn’t be more pleased with the function of this adapter. It’s easy on and very simple to operate. I think the reason people have issues is because of something on their end, not the adapters.
If you follow these few steps you will have success:
1. Make sure you get a reputable CO2 tank from a local welding supply store that has an eductor tube, aka syphon tube or dip tube. This is VERY important for the function of this adapter. You can also say you just need a tank set up for soda machines at restaurants. If you don’t have a tank with an eductor tube then you have to invert the tank when you refill your Soda Stream tank which is precarious and not recommend. They are about $30-$50 more than buying off of Amazon and you don’t own the tank. This is a GOOD thing. It’s a permanent lease so if anything ever goes wrong you just swap it out which is what they also do when you go to refill it. This is how it works at my local store called Welsco at least.
2. *VERY IMPORTANT* Watch the video from GoldwingDocs that is on this product page. If you follow his video step by step, which is extremely simple, you will have 100% success as I did. Thank you to GoldwingDocs for the upload.
3. (Suggestion) Considering most households will have to refill twice a month at most, which only takes about 5 minutes, I recommend the method of using an adapter like this to refill the soda stream bottle vs. getting the adapter that hooks your own large CO2 tank directly to the soda stream. This is for 2 reasons:
– 1. When you hook the large bottle directly to your Soda stream you have to “bleed” the leftover CO2 in the line and turn the tank off after every use. Some may disagree with this but for safety it’s highly recommended.
– 2. When you hook the large bottle directly you are very limited as to where your soda stream can be placed as you must also have room for a giant CO2 canister as well. Refilling your Soda Stream bottle allows you to put your Soda Stream anywhere as well as take it anywhere, like camping!
*note* I fill 4 Liters of soda water every day w/ 4 2 second presses on the soda stream and have to refill about every 3ish weeks it seems. Though buying the CO2 tank ($202 filled) and this adapter ($45+ Tax) is a large initial investment if you drink this stuff as much as I do it is worth it. It costs me $22.50 to refill my 20lb CO2 tank and it will refill the soda stream bottle 22 times, which through Soda Stream equates to $330!! The savings of ONE CO2 tank more than pays for the initial investment and over time you will save a TON of money. Let’s not forget it’s an Eco Friendly move as well as it keeps countless aluminum cans and plastic bottles out of the landfills and recycling plants. I highly recommend it!!
Fausto Garcia –
Me gustó lo sencillo de instalarlo y usarlo