Tube is made of PEI, although a strong one, please be careful if you use tank cracker juices, like cinnamon, strong menthol, citrus, cola, etc.
This is a bottom fill tank section only, you need a Dvarw MTL FL 24 deck to have a working tank.
A spare glass tube will NOT work in this tank!
Total length of the 3,5ml tank (deck+ultem tank section) is 27,1mm without drip tip and the 510 and has a capacity of 3,8ml.
Total length of the 6ml tank (deck+ultem tank section) is 35,1mm without drip tip and the 510 and has a capacity of around 7ml.