Tell me the height, thats all i need i think. 
You wanted a carbon filter to remove the smell. 
I can try a pingpong ball shutoff or i could put on a return spigot back to your sump. 
What do you feel safer with? 
6 inches wide and how tall? 
I can cnc it and glue it, just need the height, i have some 6 inch here 17 inches tall. 
		
	
		
		
		
		
			
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