Basically, the connections are standardised and therefore you should not have a custom-made product if it is compatible with your shower in Switzerland.

So it fitted in my flat. It should also fit in Bali. If I ordered the shower head from China and it fitted, then these threads should be international standards. Just remember that it only filters heavy dirt and separates the limescale from the water so that no limescale residue remains. I don't know what you want to use the filter for. Because I use it for washing my hair, as limescale clogs my pores and makes me itch. You can't expect clean drinking water with this filter. Just to let you know