This filter tray allow you to use much cheaper aftermarket filter in your Red Sea sump.  It will pay for it self just after 1 use since the aftermarket filter sock is only about $1 instead of $20. These are custom made with CNC machine out of black Delrin and guarantee to be safe in fresh / marine environment.

* NOTE:  This will fit either the original Red Sea or aftermarket filter sock or any combination of the two..

This sale is for 1 tray and does not comes with the filter sock(s).