The Aticap Classic is a sanitary drip tip protector that doubles as a glass protection band. The Aticap Classic is designed to be a very universal drip tip protector. It is compatible with most subtanks and 1/2" drip tips. Our main goal is to prevent debris and other foreign particles from entering through the drip tip and contaminating flavor. It's an added bonus that the Aticap has a thick durable glass protector attached for a simple two in one design..