Do you know what size tube?

[scubanimal]

I'm looking to find an inner tube to cut up for holding my reg & SPG on my stage/deco bottles. Does anyone know what size tube fits what size tanks?

Thanks !!

[NJdiver85]

Don't know the correct size, but what I did a while ago was measure the circumference of my stage bottle. Then brought my tape measure to Pep Boys and pulled out all the tire tubes one by one and measured until I found one that was a tad smaller than my stage measurement.