Cream whipper N2O charger incompatibility issues

Over Christmas we got this ICO cream whipper from Italian family. It takes these N2O/laughing gas chargers. I happily went to Coop and got Kisag chargers. I was perhaps too naive to think that there would be universal fittings, because the Kisag ones I got do not fit our whipper.

Does Switzerland have its own type of connections?

Anyone know where to get chargers that would fit? All the ones on Amazon cannot be send to Switzerland...

There are at least two different kinds of capsules:

Kisag (common in Switzerland): http://www.kaufhuus.ch/kisag-kapseln-10er-p-1079.html

iSi: http://www.kaufhuus.ch/kapseln-10er-p-1086.html

Looks like you can order them from Amazon with shipping to Switzerland:

https://www.amazon.de/dp/B017QBT2NG/..._QzixAbHQEPA1Z

Thanks! I only tried .it...

I think 600 should be enough .