Not sure about the gph. Bought it from a fellow RC'er one month ago, but never used it because I was given another one for free.
$100 obo. Price does not include ship. Images below:
http://reefcentral.com/gallery/data/...92DSC00312.JPG
http://reefcentral.com/gallery/data/...92DSC00311.JPG
http://reefcentral.com/gallery/data/...92DSC00310.JPG