DUAL Coil Replacement head for Smok ReDux Clearomizer and Vivi Nova

These are a bit redesigned from the original vivi nova's. The metal chimney piece in the rubber cap helps with sealing to the tank cap and short of putting my PV in my pocket upside down I get no flooding, it also makes it easier to fill from a juice bottle (if you don't have a 20ga blunt needle cap on your bottle) without getting juice into the chimney and flooding your coil's. The new duel coil design is an improvement, and seems easier and quicker to clean by dry burning. Here's where I take away one star. The duel wick sometimes struggles to keep up, I usually have to fill the tank when it's 1/2 empty or I start to get burnt hit's, this wasn't a problem with the original quad wick. All in all I will buy these again.