Correct. But if he's willing to go through the hoopla to get a can I'm sure he won't mind mailing a form that the only cost associated with it is a postage stamp. And the form is good for a year.
mehhh....
Anyways. They looke the same internally for the most part except the pigs cone is also the end cap. So it's a 2 piece (unless you count the retaining spring/clip as a piece then it's a 3 piece.