The Combo RDTA Tank has been improved and optimized based on the feedback and design of the popular Limitless RDTA The iJoy Combo RDTA is a 25mm diameter tank with a 6.5ml e-Liquid capacity which is easily refilled using the convenient side fill option. The iJoy Combo RDTA has sub-ohm and RTA capability and features the ability to swap from prebuilt atomizer heads to a rebuildable deck. The iJoy Combo RDTA utilizes IMC-Coil Kanthal 0.3ohm atomizer heads designed for variable wattage.