New Fuel Line, 6mm vs 8mm (F70)

[15BW70HP]

Need to order a new fuel hose assembly with primer bulb . . . mines the original & almost 12 years old.
There's a couple Yamaha assemblies I see offered, one is 6mm and the other is 8mm. (inside diameter)
Being that it's just a little F70, I'd assume the 6mm is the correct size . . . but it never hurts to ask.
Thanks in advance.

[DennisG01]

What is the size of the nipples that the hose slides onto?