Hi @Pantepo95,
Basically
the old flanges are a bit smaller, so they should physically fit into the new tubes but would not have the same level of seal, so would not have the same depth rating,
EDIT: This was incorrect, and I’m not sure how I came up with that idea. The original flanges do not fit in the new locking tubes.
and when using the old flanges
- the new locking cord wouldn’t fit, and
- the anti-rotation slot would be left un-engaged
so some of the new features/functionalities would be missing.