so I need to start this review by stating I'm not using the pressure pot for what it was designed for , I have converted it for resin casting . It would have been 5 stars apart from some of the fittings , mainly the regulator and gauge .The pot is relatively cheap with most of them _50 to _100+ more so I have taken that into account , pot is a well made thick gauge metal with a silicon seal in the lid , the air inlet has a side diverter meaning its not going to blow the resin etc out of the mould when you charge it . everything fitted to it is fine until you get to the pressure gauge and associated fittings , the body is plastic and already out of shape from shipping , feels like its going to fall apart just from handling however the biggest issue is its rated in MPA not PSI or BAR , which is easy to convert with google but an added complication and it goes way over what the vessel is rated for which could lead to some very nasty accidents if you don't get it right .The pressure vessel is easy to convert with a couple of extra fittings and PTFE plumbers tape but I would strongly recommend replacing the regulator with a decent PSI rated one before use .I did put 40 psi into the unit 24 hours ago and it has held the pressure . The inside is a decent size for most of the turning and casting work I would ever need to put in it .in summary - buy a decent gauge and its a very handy tool