Down here in Florida, or at least in my area, they will not sell any owner bottles over 80 c.f., the 120c.f. and above are lease only for some reason. I have owned my tanks for many years and they were bought when I was up north. The only company around here that will exchange them for me is AIRGAS, no one else will touch them for me. And on more than one occasion they gave me a hard time and tried to tell me I could'nt own the bottles, that they are rental bottles. I'm lucky that I have saved all the receipts for everything I buy, as I've almost lost the tanks a couple of times.
Yes, that was a shopping cart a one time that I converted into the welding cart. Dave