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How to build a CO2 regulator for your calcium reactor.
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01/22/2015, 10:47 AM
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alanle
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Join Date: May 2013
Posts: 307
Here is a really nice stainless steel Concoa 432. It's a little pricey for a used unit. I would pay $70 to $80 for it.
http://m.ebay.com/itm/171652246196
alanle
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