The laying pipe itself has no holes. It serves as the base line for the drip irrigation systems. It must be operated with a pressure reducer (max. 2 bar).

The material of the drip pipe is UV-resistant and of high quality, but it is not specified whether it is certified as food safe or suitable for irrigating vegetables and edible plants. There is no official information confirming its suitability for food or vegetable use. Therefore, it cannot be guaranteed that it is suitable for watering edible plants.

I understand that the Gardena diameter is not standard and that a difference is to be expected. Perhaps you could test in shop?

see answer above, 13mm - i.e. 1.3cm diameter, there is no mention of 8cm height!

Hello Transylvania after some research I found the following data: Material Polyethylene (PE) Wall thickness approx. 1 mm. Max. Pressure 2 bar. Max. Temperature of water 40°C. Inner diameter 13 mm Unfortunately, neither Gardena nor Galaxus nor any other dealer has listed the technical data directly. I hope this information is sufficient for you. Regards Patrick