Would this fit Hozelock 100 pressure washer? It looks the same.

I have had a look for you and I am very sorry as that part is a Makita part I would not be able to recommend this one for you, we do have a few hozelock connectors would any of these be okay for what you need? https://www.lsengineers.co.uk/brands/hozelock/hozelock-sprinkler-systems.html