I would like to know what does the nitrogen cylinder comes with? The max dog brewing website linked me to your website and they say your product comes with the following: Fitted with CGA-580 soft-nose 'O' ring enabling connection to cylinder. No tools required Built-in pressure gauge allows instant check of amount of gas in cylinder. Simple click setting enables optimum gas flow of 15 litres per second. Gas delivery hose with soft-endings for easy connections. But i don't see you mention this on your website. does the cylinder comes with all this?