Unfortunately, the Won skimmers (what you were sold) are highly over-rated. FYI, all manufacturers with the exception of Euro-reef, Deltec, and H&S over-rate their skimmers. For starters, cut any manufacturer's rating in half (divide the Won by about 3).
As someone else has mentioned, the Coralife Super Skimmers are supposed to be good. If you have the cash and room, you can look at an esternal skimmer (like the Pacific Coast Imports recirculating needlewheels) an sit it beside your sump. Then you just need a feed pump and outlet line in the sump.