The refugium is not pictured and is an external slow flow unit also purchased from Jeff at Lifereef. I believe my fuge will be 16" wide. It has an inlet, outlet, and overflow. I will be able to control flow to the fuge and slow it down enough which IMO is better for refugiums. I also felt the PM sump has too many dead spots in it. The PM design is nothing great and many manufacturers use similar designs.
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