What a shit product! It will only carbonate 1 litre containers not any liquid above 300ml like they say. It won't carbonate anything other than water, as they promote it will carbonate anything. If it does carbonate your water it won't last longer than 5 minutes and it will smash through your gas cylinder... as in SMASH through it - large cylinder 7 litres of water. I've tried to get a replacement or a fix 2 months later... all I get is a 'sorry we will look into it, we are under staffed, its been the holidays" I just want my money back ..a Total waste of $300