If you are going abroad you will find there are 3 different thread sizes commonly in use.
Just take the adaptor you have got but be aware you may need to take a trip to the local DIY shop.
Daves1
Thank you,going to a wedding in Northern Ireland and staying 2 weeks.
on looking at camp sites lots seem to offer serviced pitches and thought it might be a useful piece of kit .
I have a adaptor set that came with my Aqua roll mains kit. it consists of 1 screw on spigot with 2 screw in adaptor rings for the different tap diameters
They are even different colours grey outer green and smallest black.
I have a ballcock system that fits in the Aqua roll, blue water hose with hose lock fittings on each end and two screw adaptors. This all came as a kit and has been fine on every fully serviced pitch in the UK that I have stayed on.