They only refer to bowl assemblies. EVERYTHING south of the bowl is exactly the same in every V/Flush toilet. As far as I know, the 106, which is their most compact bowl to fit in really SMALL heads, is still in production.

I think we've exhausted all the help we can give you here...my psychic powers have limits! So it's time to contact SeaLand--either the dealer who installed your toilet (I assume you still have their phone #), or the SeaLand plant: 800-321-9886.

Btw...I thought you'd decided to install Tecma toilets...who the heck talked you into spending MORE to DOWNgrade to a VacuFlush??? Or is this a different boat?