It's a SEIO Super Flow Pump M620 (Its made by TAAM same people who make Rio) Its 620gph. I literally just got this delivered a couple hours ago. It's a great pump but after putting it in my tank I just didn't like the way it looked in my tank (no equipment in the tank everythings in the sump so it clashed) so basically it's like new! I payed $38.99 so I'll take $30 so you save shipping and about 10 bucks.
Heres what it looks like:
http://www.charterhouse-aquatics.co.uk/catalog/images/Seio/seio_pump.gif
Heres what it looks like:
http://www.charterhouse-aquatics.co.uk/catalog/images/Seio/seio_pump.gif