Does anyone know the inside diameter of the windshield washer hose that was used from the washer fluid tank to the spray heads on the 75 f250?

Thanks.

 

I just replaced mine a few weeks ago with a kit from Dennis Carpenter, I needed the plastic fitting on the firewall so I ordered the hose as well; measured with a tape measure it looks like 3/16" ID, this is the hose from the tank to the fitting on a '76 F-100