Vintage Double Hose

I have looked at the Old Royal Aquamaster diagrams and the new one as well. It looks as though there is a length difference between the two. Are they the same or is one longer. Are there any diferences at all?

The more i read, the more questions I got.

The RAM nozzle body is quite a bit longer than the DA's. Although I have seen quite a few attempts to make a RAM HP seat work in a DA.....