DDK - Die Deutschen Klassiker

Changing the fuel pump on my 912e (it’s got Weber’s fitted)..does anyone know the fuel hose l/D the bit of hose that comes out the tank to the fuel pump as I need to get the right size fitting to go in the fuel pump......the ones that came with pump are too small.....the pump I got below
https://www.advancedautomotives.com/web ... 1209-p.asp
I believe it’s the same size hose as the 914
Thanks in advance

If it's the same size as the 65-69 912s, if I remember well the diameter is 7.5mm