Question about Gardena Valve box V3

The valve box V3 with 1" connection can be connected to the Gardena Micro-Drip system (16 mm) by connecting the valve box with the appropriate telescopic pipes and pipe connectors. The short telescopic pipe is screwed into the outlet of the valve box and the long telescopic pipe is connected opposite. The 16 mm hoses of the Micro-Drip system are then connected to the valve box using the corresponding pipe connectors (e.g. T-pieces, L-pieces). The connections are secured with fixing rings and unused connections are sealed with cover caps. For a stable installation, gravel should be filled in under the valve box so that water can drain away easily. This creates a water-regulated connection between the valve box and the Micro-Drip system.

To connect the Gardena Valve Box V3 to the Micro-Drip system, you need the https://www.galaxus.ch/de/s4/product/gardena-2761-20-verbinder-pipeline-257551.

Material number for connecting valve box to Micro-Drip system ?