Having owned a GTR for some time the only criticism i could give was its capacity especially when out all Day so purchased the extension which has transformed the usability of the RTA. Whenever i have purchased larger tanks for other set ups it always make them feel top heavy and out of scale plus it can change the Vape profile . With the GTR extension it is hard to notice any extra size or weight and Vape is the same or perhaps even better .
Now with the extension i can honestly say that this is without question the best atomiser that i have ever owned and even the FEVs and prime are in the back of the Draw .
Superb piece of kit and as usual 5 star service from Keith and the team at CDV. I wont be looking elsewhere for anything Vape related .

2ml not quite enough for your GTR,
It wasn’t for me so decided to purchase this ideal accessory,
This only add on and extra 2 mm to the height of the Rta so you’ll carry double the juice capacity and hardly noice the small increase in height,
Ideal for them days out and not wanting to fill every hour or so