Yes pre-made coils can be used. I use them but moving on to winding my own soon, supplies are on order as we speak. Now pre-made atomizer heads will not work in a RTA. Some tanks will provide the use of other coils heads not made for them but I feel funny about using a coil head in a tank in wasn't designed for.
	
		
			
		
		
	
			
			 
				
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		