The Aspire K2 tank is a great glassomizer tank. It uses the same bvc coils as the ET-S, ET, CE5, CE5-S, K1 which makes it suitable for those wanting a tank that lasts longer, produces great vapour clouds for great mouth to lung vaping. The Aspire K2 can hold upto 1.8ml of e liquid and has a bottom filling unit.
BVC Coil here
Drip Tip Steriliser here