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Old 12/12/2016, 02:01 PM   #20
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Join Date: Oct 1999
Location: Rockville MD
Posts: 706
We do ship it with plastic screens as well. But we've found we get the best performance with the ultra fine steel mesh for tiny media like Purigen or PO4x4. I use the steel mesh for Rox carbon as well, until it hydrates, then I take to top screen off completely.

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