oxygen tank

I went ahead and ordered the regulator you have. The orange 20 cu ft tank I posted says it's a "welding cylinder" which means they should be able to fill it with welder's oxygen.

This one http://cgi.ebay.com/40-Cu-Ft-Oxygen-Cylinder-Tank-Cutting-Cga-540-Bottle-/350...

is a 40 cubic ft that doesn't state it's a welding cylinder. The valve is for CGA540. The valve on the tank needs to match the pediatric regulator, right.., which this one does. It doesn't say it's a medical tank. I'm assuming it's also a welding tank.

I'm not sure if the guy that helped us at the welding supply store confused us. I understood that a pediatric regulator can only be used with a medical oxygen tank. I commented to my dh before he went to bed this morning that you didn't have a problem filling yours. This means we probably shouldn't either.It would save me so much time if I'd be able to buy the tank locally. I didn't expect these bumps in the road. Thank you so much for helping!

p.s I need to clarify that on the above post where I talk about needing a prescription it was for medical oxygen. I was so tired when I wrote it.

~angelbebe