Bubblefin Aquarium Sump Refugium DIY Kit for Protein Skimmer Sump - Chamber dividers (20 Gallon Long)

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Feature

It comes with 3 pieces of acrylic dividers for standard 20 gallon fish tank with width 12.5 inch, either tall or long 20 gallon size.
It does not come with fish tank or silicon glue.
The dividers will give the chamber heigth for most of the skimmers.
The width of the acrylicy sheet is 11.8 inch / 300 mm.