Universal drainage tee Ø 72-100 Connects drainage pipes from Ø 72 to Ø 100 mm The universal drainage pipe connector system developed and patented by Karmat is used to connect drainage pipes of any diameter from 72 to 100 mm. The main advantage of the connectors is the ability to connect pipes from all European manufacturers using a single system. Changing the supplier of drainage pipes does not require changing the connectors.