Size of Barb fitting on Fuel Pump

[lazabby]

What is the size of the barb fitting on the fuel pump? 1/4" I have 3/8" hoses coming off the two barbs but I think they may be a size too big.

[Bitsyncmaster]

What is the size of the barb fitting on the fuel pump? 1/4" I have 3/8" hoses coming off the two barbs but I think they may be a size too big.

I seem to recall 5/16" ID hose but that's just from memory.