Made from high grade borosilicate glass, this tank is fashioned to be compatible with dry herb. The H1 Glass Tank has an atomizer tank resistance of 1.1ohm, a ceramic chamber with a heating wire and 510 thread. Compatible with the Vapor Storm VX30 Dry Herb Vaporizer, is super easy to clean and changing the coil in the tank is no hassle at all. For the best possible performance, it is recommended to power the tank at 30W or less and not to put in materials that are either too thick or thin as it will not vape properly. With great airflow control, the H1 Glass Tank by Conseal Vape is a great investment. At a great price, get one now!