Thermoquad question

Ok Im rebuilding 9379s on my 84 D150. I believe the 1st pic is the "altitude compensater"??? It has a rubber valve on it. The 2nd pic shows the one I took off, it has a dome shape top to it. The next pic shows the 3 I have to choose from in my kit. Any ideas which one to go with?? None in the kit are the same as to what I removed.

Thanks
Steve