We've got a new one which I cannot remember the name of. I'll ask the bf when he gets home what it is...maybe an ecco Ehiem.
Our last one was a Rena Filstar XP3 and we've use the Fluval brand too. Here the link to some, we've use the first 3 brands on the list. Hope this helps you out. http://www.aquariumguys.com/aquarium...r-filters.html