Danner Mag Drive Model 3, 5, & 7

Are these models the same dimensions? And what exactly are those dimensions. I come to believe that my eheim 1250 isn't strong enough to power an dual rad external system and I need something of similar size as a replacement.

Here is a link that will help you some... Click "more information" on the page for dimentions of the 5&7

http://www.drsfostersmith.com/product/prod_Display.cfm?siteid=6&pCatId=4590

Here is a better link with most if not all of the models...

http://www.marinedepot.com/a_ph_danner.asp?CartId=