I picked up some from Eli early this week, what I can tell you at this time is that it rinsed very clean, no residue, I put some in a mesh bag and run it passively, my water is crystal clear -  had to go out of town and won't be back till Monday, but the 2 days I was home for was really impressed with the clarity of the water 
 
I haven't used Rox from Brs so I can't compare, also, I used only a small amount since I was going to be away 
 
That's all I have for now 
		
	
		
		
		
		
		
	
		
			
			
			
			
			
			
			
			
			
				
			
			
		 
		
	
	
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