It is a 350gal cone shaped BioBrewer made by BioLogic Systems. http://biologicsystemsusa.com/ Comes with custom air pump, which pushes the air up from the bottom of the cone keeping the air flow moving continuously through the reservoir churning every drop of water heavily and continuously. I will throw in a Shurflow 3.2gpm diaphragm pump with the deal. From everything I have seen, it is...
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