"Can these cylinders be used for cascade breathing systems?"
Good Morning, yes they can be, 4500,5000, and 6000 psi steel
"how much does it weigh?"
Keith, this is what we were told by our vendor; The older style DOT/TC stamped units were 188 lbs. each, empty. The new style ISO/UN stamped units are 195 lbs. each, empty.
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