Can you help me with these tanks

[mndiver67]

Hey all my buddy has two tanks that he swears are steel 92s with a working pressure of 3000. He says there super heavy but I cant find any info any where about such tanks. Any body know anything about them?

[Greenwood_60]

If they're 6.9" tanks, it sounds about right. They're something like 20lbs negative when full.

[tj]

i got a couple of these. They look just like a 72, but heavier and 3000 psi vs 2200

[Sludge]

A married couple that used to dive through one of the shops I work for had four of them. They absolutely loved them because they were both overweight and these cylinders were like having an al80 plus about twelve pounds of lead.

[Diverlee]

Are they the old mid pressure 72?s? I had a set of those and very negative


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[mndiver67]

he is looking to sell them any idea of a fair price?

[FW]

Are they the old mid pressure 72?s? I had a set of those and very negative


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No, these tanks are even heavier than the old 72s. 72s were 2250 psi, these are higher pressure.

[Danseur]

There are 2 possible candidates.

If they're the 92, they're 6" by 23-something inches. RARE.

There are 2 versions of mid-pressure 72s. One was #8 negative empty and 6.9x18. The other is like 2-3# negative and 6x21ish. I have a set of each; I'll photograph in the daylight.

[ericfine50]

Pictures with tank SN will help.

[Danseur]

72 Midweight, taller, 6" (also 3000, 3300 with +)

72 HEAVY, Short, 6.9" (3000, 3300 with +)

AL80 for reference

http://cavediver.net/forum/gallery/e...?i=11510&c=515