The GARDENA Nozzle T-piece as part of the GARDENA Micro-Drip-System is used for attaching nozzles in the 4.6 mm (3/16") distribution pipe; this is done in combination with a Pipe Holder (Art. No. 8327-20) or Pipe Clamps (Art. No. 8379-20). The T-piece is suitable for extending sprinklers in combination with the Extension Pipe (Art. No. 1377-20). Using the patented "Quick & Easy" connection technology, connecting to a 4.6 mm (3/16") distribution pipe becomes very easy. Five tees and five caps are included.