be careful. one of the smaller aquaclears wont fit over the lip of some thicker braces like on the 40 breeder. I had a 50 gallon oceanic cube and i think it was a aquaclear 50 that didnt fit it. had to return it and went with the next size up.
Howdy
Thanks - I know - but that's not a concern for me - I am trying to find spare parts for some of my filters, and needed to know which ones they were.