Looking for a 1.1 bar replacement radiator cap. Anyone?

Hi, Last year i bought some different caps also a 1,1 so i guess at a good autoparts store they have 'em.. should be no problem at all!

What's wrong with this one? The picture doesn't tell me..

Is 1,1 Bar standard on a Z? my 300zx has 1,2 Bar, i checked that few month's ago. 240/260/280z i don't know can be 1,1 atm/ato/bar.. whatever.. 🙄 Take a look in the serv.manual.

This came with its champion radiator.

Still don't know what's wrong with it? ;-) Every (good) carparts shop has them!