Precision Marine hang on the back Protein Skimmer.
If your tank is run without a sump, this is for you. It is the nicest hang on the back protein skimmer I have ever owned. Would be an upgrade for almost anyone currently using this type of skimmer.
Perfect working order, even includes auto shutoff waste collection container which was a $100 upgrade. Priced to move, I just don't need it anymore.