If the D27 hose end goes inside the tool dust port, the D36 hose end can fit over the dust port. If however the D27 hose end goes over the dust port, the D36 hose end won't fit.
I use the D36 for my EHL, for floor cleaning, for the wall chaser and the CMS-OF. Sometimes with the TS. All other tools (RTS, PS, Domino, OF-1010) don't take the D36 hose or have zero gain from using the thicker hose.
The D27 hose, especially the new bajonet style is prone to clogging at the hose end entry, especially if it's inside a dustport.
If you want to buy a D36 hose I recommend looking at the cleaning sets, as those come at a nice discount + free Systainer compared to buying everything separately.