skimmer id

I picked up a 125 rr and it came with this skimmer. theres no markings on it and id like to know what it is. its 6 inches in diameter and 20 inches tall. the outlet is 1 1/4 inch and it came with a seized sedra 3500. I was thinking asm but I'm not sure because the threaded union holding the collection cup on.
thanks in advance