Orange gas pipe 8mm or 9mm, any difference?

[TobyQuest]

Hi

I couldnt figure out why the fridge wasnt working on LPG and turns out the gas pipe is wedged closed between the chassis and the box body. Really strange how that came to have happened from the previous owner.

Anyhow, easiest is to replace it. Not sure I would be able to measure the difference between 8mm and 9mm. Is there any safety/purpose difference in using one or the other?
Any other way to know what I should order?

 

[Bart]

No idea what the standard size is, but be sure and replace it like with like as that's the size your fittings are.

 

[TobyQuest]

Difficult to tell what size really. Ive gone ahead and bought 9mm.
Went with the reasoning that if its too big by 1mm i can tighten it with the jubilee clip, but if i get 8mm and its too small i will stretch the hose which is probably worse

 

[mitzimad]

fridge should be piped in copper not orange hose