I have 2 steel 72's for sale that just came back from hydro. Both tanks have original 1970 hydros. These tanks are hot dipped galvanized and look good on the inside. This set includes a Scubapro manifold without the center isolation and a set of bands. The top band has the stainless steel cage that was popular with cave divers in the 1980's. This rig belonged to Hal Watts who made many deep air dives using these tanks. These tanks are also available as single tanks with older USD valves if you prefer. If you have any questions you can call Bill at (352)732-9779. The tanks are located in north central Florida in Ocala. Shipping can be arranged but if you come pick them up Hal will tell you about the many adventures he made with these tanks. Price is $300 and shipping would be extra.