It's the Suspended Animation Chamber by Scoopey (note spelling).

The download comes with several props; the tank prop itself, a couple of harnesses (for male and female characters), and an air mask with wires.

The tank is a single piece; there are no sub-parts. All of the morphs and geometry are contained in the .pp2 file.

Are you simply importing the new tank .obj into Poser? If so, it doesn't have any morphs. They're still in the original .pp2. I suppose you could save the imported tank into the Props Library, and then use Morph Manager or CR2Edit to perform an emergency morph transfusion from one .pp2 to the other.