Thanks for all the replys people
it's a Euro-reef CS8-1 in sump skimmer,damaged from a bad shipping accident.Heck of a nice skimmer,the guy took care of his equipment,and i got it at a great price.I have all of the pieces,but,some of it is like plastic dust.Special thanks to Chin AMAZING instructions.I'm just gathering up the courage to tackle this on the weekend. Thanks again