It is a wave II 1/3 HP with the saltwater seal. The rating is 7140 gph @ 4 ft head. Sorry about the typo in the above post. (not 7400 gph) I'm not sure about drilling my tank. It is a fully stocked 125. How would I go about getting it drilled? I don't think I can get it drilled anywhere around here. I live North of Wisconsin Dells. Plus I would have to empty it. I doubt I can do that. I'm not too sure about drilling it myself even if I emptu it 1/2 way. Just a little to risky for me. I don't want to wreck the 125 tank since I plan to ude it as my sump for my new tank when I get it.

Angie