Found these at local on line aution, for 10:00 $ each. Thinking good drain tanks, and or condencer final before air filter direction components. Had too waint awile too get at that price .They hold 3 gallon water though cantainer says 2.5 gallon. They are old soda acid extenguishers. Light weight SS.for small vehile gasification.
ss steel seems too be about 20 gauge or less. Can be welded for plumming down on low welder heat settings.