Fuel line size?

[DirtE Thirty]

Looking to replace some fuel lines connecting to fuel filter. Anyone know what size these are? Pelican parts has the short hoses sold separately for $15-20/apiece or they have bulk hose in different sizes, by the meter, much cheaper. Old hose is so crusty, degraded, don't feel I can get an accurate measurement off them. thanks.

[SpecM]

they are 8mm, but 5/16in is really really close. Close enough to use and be fine

BUT make sure you use line rated for high-pressure fuel injection. NAPA/OReillys/CarQuest all have that