What Skimmer is this?
 

So i recently fell into a mess of Aquarium supplies, that being said I have no idea about any of it. A wet/Dry filter set up, several powerheads (I guess thats what they are called) basically everything for a 120gal tank. Can anyone help me identify this skimmer? There isnt a label on it and Im trying to find its specs or manual online. Its a HOB skimmer. Thanks.
http://i1295.photobucket.com/albums/...psa4ab87c7.jpg