Soda Machine Co2 Adapter with High Pressure Stainless Steel External Hose, CGA320 Co2 Tank Direct Adapter to TR21-4 Soda Water Machine Compatible with Jet Aqua Fizz(36 inch)

I am new to Soda stream and bought a Terra and Aqua fizz both at a great deal we found locally ;we like the plastic bottles and glass as well. After research and realizing the cost of replacing the soda stream cylinders was not going to work for us, i'm cheap and will find the least expensive and best quality option when applicable. So I did research on 5 gallon tanks and found an excellent one made by Vevor. They make great items at fair prices. Spend the money up front and continually save long term.This item works well and all the connections fit snuggly. So for now this is a great buy, hopefully it lasts.I hope this was somewhat helpful.

It worked for 3 days and then the adopter started leaking CO2 as soon as the valve is open from the CO2 tank. Extremely disappointed. I opened it and checked and connected with the tank directly and confirmed it’s leaking gas. The pin doesn’t need to be depressed and it leaks

Bought this connect a 5lb tank to my Ninja Thirsti. It's not officially supported but works great. I have to leave the little door open where the smaller tanks would normally go but that's fine (I'll eventually just cut a little slot in the side for it). It's also a bit of a pain to connect this securely to the Ninja Thirsti due to it's design. I ended up using some 90 degree pliers to get it on (needle nose won't work, you need something that can reach up inside of there and turn). Fortunately you only ever have to connect it once. If you want to connect a larger CO2 tank to the Ninja Thirsti then this is exactly what you need.

===== UPDATE, May 2023 ======I was contacted by the seller via email, who graciously offered to replace the defective part free of charge! Customer service was prompt and friendly. They sent me a packet of replacement gaskets which fit perfectly now I'm back in business. They clearly go above and beyond to take care of their customers.===== ORIGINAL REVIEW ======Like other reviewers, mine started leaking...right after the 30 day return policy ended. I had to shut off pressure after each use, which nearly defeats the whole point of the valve.I was able to open the valve using a 6mm hex wrench, to confirm that the gasket inside the valve (on the stem itself) was cracked and crumbling. It was either very old, or subjected to harsh conditions of some kind, or poor quality, etc.Because I could not return it, I looked for replacement gasket. Unfortunately I could find no good alternatives, but I was able to make do with a cheap gasket out of a variety bag. It still leaks.

I grabbed this ("Older item fit Jet Aqua Fizz" style) to adapt a DrinkMate OmniFizz to a 20 lbs CO2 tank from my local gas supplier. It worked great for a month before the TR21-4 valve started leaking. When I removed the pin from the valve, the clear o-ring was badly damaged, dry, and cracked. It came off the pin in pieces! The orange o-ring shipped with this kit is not the correct size for this particular valve as seen in the photo, but the seller does have a style of this product called "O rings for black adapter" which I have on order. That style also includes a video on how to remove the pin and which part to replace. Otherwise, good metal parts, a nice quick connect for the hose, and I can't complain too much. At least it is serviceable.