Quote: (Originally Posted by
warjarrett)

Here's a picture that compares a steel Worthington 19 to steel Faber 19 and aluminum Catalina 19 cylinders. If it doesn't appear, then go to the link below.
19 cu. ft. cylinders: Faber, Worthington, Catalina hey mate,
where did you get those black tanks? are these the ones you are selling right now?
how many turns does it take for the valve to be fully open ?
Thanks.