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CO2 cylinder question
After nearly 2 years worth of yeast brews, I'm finally getting around to
putting together a high-pressure CO2 gas system. I've been checking around
town and, so far, I've only found one supplier who has lab/medical-grade
CO2 -- I prefer to use this grade just for the peace of mind. Trouble is
that they only have it available in what is called an E-cylinder.
So, is anyone familiar with E-cylinders? Is it compatible with a standard
CO2 regulator and CGA 320 fitting? If not, is there an adapter that can be
safely used? They cannot fill other types of cylinders, so it's the
E-cylinder or nothing. The guy on the phone didn't know too much beyond
the type of cylinder and the price ($8 per cyl).
I have considered food-grade and will go for it if I have to, but I prefer
to exhaust my medical-grade options first.