Vzone's Preco Tank is a new revolutionary plastic design tank. It's a non replaceable coil system with food grade polycarbonate material for insulation, and light weight construction. The unique all in one design produces excellent flavor and a surprisingly massive cloud! Vzone designed the tank to minimize the condensed liquid coming up through the chimney when vaping, making spit back virtually undetectable. This innovative tank can be the cost saving tank we have all been waiting for!