Fuel line size

[knotflying]

I am setting up a small remote tank to use a fuel/fogging oil mix to winterize my boat. Without having to go to the boat and disconnect and measure, does anyone know the size of the fuel line that has the siphon bulb on it? I have a 2520 2021 300HP Yamaha.

 

[warthog5]

3/8in

 

[knotflying]

Thanks!