Using the best design elements from the 22mm RTA dotmod has created an even better tank! Introducing the dotmod 24mm RTA. It has a re-designed chimney and thread so you no longer have to loosen the 510 pin. Solid brass construction with 4 x 24K gold plating. Elegantly placed CZ stone in the center of the deck. Knurled adjustable airflow ring. Slightly larger postless deck for better build characteristics. Improved wicking holes for less likelihood of leaks and ease of wicking. Open tank design for easier filling. Larger tank capacity for more hours of enjoyment. The dotmod 24mm RTA comes with a standard drip tip and an Ultem drip tip.