Quite pump 
A big enough neck to fit my hand in to clean the body 
Muffler or air filter to make the skimmer quite 
A drain in the collection cup 
External pump with quick connect for cleaning   
A gate valve for adjusting the skimmers water level 
 
I like how the vertex skimmer necks come off for cleaning. 
		
	
		
		
		
		
			
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				120 G sps reef, looking to build bigger.  
			 
		
		
		
		
	
		
			
			
			
			
			
			
			
			
			
				
			
			
		 
		
	
	
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