Can you identify this skimmer

[AT_Hiker]

I just bought an aquarium on Craigslist, and it came with this skimmer. I know it's a Red Sea Berlin skimmer. But the label is not 100% intact and I can't identify the exact model. It looks like it mentions triple-pass. I don't have a manual. There are are a few tubes coming out of this thing and I have no idea what they're for. Does anyone know what it is or have a manual?

 

[Questin]

Tube on the bottom is where the pump would go normally, attached directly to that. The tubes at the top are where the water goes out and just falls back into the sump.

Its setup that way to either internal or hang on the back.

edit
The tube at the bottom is a self sealing connection, thats why it is rubber feeling and that is part of the problem with that type of skipper. People attach the pump right to that and because it is a somewhat soft connection it has more give then other connections. What happens is people twist the connection too much because it doesnt feel tight and the rubber connection bust right in half.

If that connection is not broken, just dont over twist anything into it. Other then that, its a good skimmer.

 

[AT_Hiker]

I understand that the. PVC connections are the inputs and discharge, but what are the rubber tubes for?