Demeyere Industry 5 Steamer Insert

I just snagged an open box (unused) Demeyere 5 Plus 8qt stocker for $90 on the bay. It still has stickers on it. I'm feeling pretty good. This will be the largest pot in my batterie.

I also have a Demeyere Industry 5 5.5 dutch oven that I snagged at a 50% discount this summer. The listing on Amazon warehouse said Atlantis, but I couldn't be too disappointed for the price I paid.

I'm certain the Industry 5 steamer will fit the dutch oven. Does anyone know if it will also fit the stockpot? The research I've done seems to indicate that the only difference between the Industry 5 and the 5 Plus are the handles. I'd also consider the pasta cooker if it fit.