Review on Uniweld F36 CO2 Cylinder to 💡 Nitrogen Regulator Adapter: Efficient Solution for Gas Conversion by Ashwin Chauhan

As many have said, the o-ring supplied is the wrong size which causes the connection on the CGA320 fitting to leak very quickly. Luckily I found a thicker o-ring to swap out for the one that came with it. The one I used was about 3mm thick. But I didn't measure. The problem is that there is a sealing groove in the valve fittings. The supplied o-ring will only work if the valve port is flat and without a groove. Plan to find the thickest o-ring that will fit in the adapter groove and it should work just fine. For this reason I deduct 1 star. If I hadn't read the reviews before buying I probably would have deducted a star.