Yup, it slips right over the outlet port on the Kapex.
The 36 yields a bit better extraction on some of the tools that produce more/larger chips.
I’ve tried a shorter 36mm on my Kapex, but still a lot of the dust escapes the hose.. Then, I use mine most for mouldings, and the dust isn’t concentrated in the kerf, compared to straight cuts in thicker wood.