I found some medical type oxygen tanks for sale. 

Large tanks  - $40

Medium tanks - $30

Small tanks - $20

Some of the tanks were still full. I understand this is about half price.

Let me know if you're interested.

 

I am in need of an oxygen tank. Post up some dimensions, and I will tell you which one I want. :D

Ol' Al was on a boat! No cell phone, no internet....just the gulf of mexico and a big boat filled with lots of food and adult beverages. Just returned today and catching up on emails etc. The "medium" tank I found is 16" tall with a 4" diameter. If I had to guess the "Tall" tank would be about 24" x 5" (dia) and they cost $40 The small tank would be about 12" x 2" (dia) and cost $20 Some of the tanks were empty and some were still full. same cost either full or empty. Somebody told me at the last meeting that oxygen tanks were available at Home Depot, but im not sure of the cost. Let me know.... Al