What is the difference between this article (13300-34) and the 13300-20 with the same description (https://www.galaxus.ch/de/s4/product/gardena-aquabloom-set-tropfbewaesserung-12509297) apart from the considerable price difference? Unfortunately, I can't compare the two products side by side using the comparison function. Is it probably because it is the same product, simply more expensive?