there is a new law in CO that says all tanks must test at the 250# level to be set. ( within a few years) The propane companies are getting rid of their older 200# test tanks. They have 125 gallon, 250 gallon and 500 gallon tanks available. Call AmeriGas in CO - they will set you up. They want $60 apiece for the tanks - in the South Park area. Prices may vary.

Don't blow yourself up cutting them apart.