I haven't seen anyone talk about these pumps. From the specs they look really good. They are pretty big though, but in an external setup or most full tower cases that shouldn't be too much of a problem.
Heres some linkage:
http://www.pet-mate.com/Fish_Mate/Pu...e_chart-US.htm
http://www.pet-mate.com/Fish_Mate/Pu...e_chart-US.htm