Review title is The tank is very nice, it fits the AF valve just fine [SEP] The tank is very nice, it fits the AF valve just fine. it has a 4350psi capacity.  You supply the valve.  The only problem is that it does not have any DOT markings, making it illegal for any commercial outfit to fill.  You have to fill it from your own large capacity tank, scba or scuba.  This is not a problem for those of us who own these type of tanks.  Considering they come from Hong Kong, I think they could lower the price.  If they did, I would buy a couple more.