I've ran a lot of Danner Mag Drive pumps (currently using 3.5, 5, 7, 9.5, and a 12) and wouldnt recommend them anymore. The impellers have a way of magically breaking, two of my pumps I have to hit to get them to start running and anything above a mag 9.5 is really loud. So my vote is for Eheim and Quiet One as they are the only other two submersibles I've had experience with. 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
	 |