SMOK TF-RTA Tank G4 EditionColor: Stainless SteelSMOKtech has uniquely planned for their TF-RTA tank to have removable and interchangeable build decks such as the quad-coil G4 Edition or the Velocity-Style G2 Edition. SMOKtech even expanded the deck to bring an extra 30% extra build room but still keeps the total diameter size compact at 16mm.The G4 Edition has the coil posts raised in a unique design that allows the user to build quad coils and comes with a 0.14 ohm quad coil already pre-installed. The G2 deck is modeled after the popular Velocity-Style decks with a dual post design. A 0.45 ohm dual coil build also comes pre-installed on the G2 deck.SMOKtech keeps their TF-RTA tank up to date with Airflow control beneath the decks and added juice flow control slots as well. They also included their famously patented swivel top cap design to make top filling easy and leak-free. The juice flow control holds a hidden sealing ring so any adjustments to flow won't lead to leaking.