Small Hoses whats the Internal Bore Size ?

[Bluespanner]

Im off on a 2 week Euro drive down to Spain. Want to take a section of flexible hose incase of the unthinkable. Ive replaced all the large bore hoses and a couple of others. Im intrested in the internal bore size of the header tank to radiator hose and the rear and front heater matrix hoses. I think its 16mm but I cant find a definative answer. Have checked the Lush projects diagrams they dont appear to show bore sizes. Thanks in advance

[corrour]

I used 16mm high temp heater hose to replace a section of the metal pipe on the drivers side near the rear heater never had a problem with it.
Dont forget your funnel for bleeding.

Safe trip

[Bluespanner]

That's great, many thanks