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On that polished brass unit, is there some kind of coating or spray one can put on it to keep it like that polished, in a salty sump area?
The Wika forged brass valves you have on that brass one, is $35-$45 ea. new good price? They only come glycerin filled, little overkill of course for my purpose.
Whats the max PSI on a 5 gallon aluminum tank for CO2? For some reason, I was thinking 3000. But you wrote 900 in a post, seems low.
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