The inner valve looks like it’s on either left or right. The basin has a hole for either, but the cistern has only a left hand side inlet. I don’t know why this sort of info is nit made more available, it’s really frustrating. Also, the toilet when pushed up against the wall and screwed in means you have no access to the waste pipe or inlet pipe.
Excellent delivery great quality toilet, not keen on the thin seat, but all good apart from that.