86 micron filter??

[JMBT]

Ok so I am doing the 2cyl fuel pump upgrade and I marked the banjo bolt that is supposed to have the 86 micron filter in it before I removed it. However when I removed it there is no filter? It is indentical to all the other banjo bolts of that size. Does anyone have a picture of this elusive banjo bolt with the 86 micron filter?? Also how important is it? If the fuel water separator is 10 microns and the next fuel filter is 5 microns, what does the 86 micron filter even do? The only thing I can guess is it would catch a piece of filter media if the filter came apart?