Scuba tank, never seen water, perfect like new condition, hardly used. Bought new for paintball purposes. Comes with fill adaptor and gauge, lime green plastic base and valve cover and foam tank holder thingy so it doesn't roll around in your trunk when you bring it places. I bought ten fills at the scuba place on Cove St. in Portland http://www.mainediversscubacenter.com/ where they did a visual inspection last lear. Its been filled maybe 6 times. Good guy to deal with. Needs hydro inspection next year or the year after. Not sure when exactly. I can have them do that now if its a big deal for you. $120