I just sent a email to fleetguard about that. It's a issue on that fuel filter as well. All filter has flow numbers and I am not sure how those could be meet with a reduction in outlet holes.

The fuel filter only has 4 holes vs 8 on the US version. and as you stated the LF3564 only has 6 outlet holes vs 10 on the US version.

The newer version of the FF5160 as even larger holes than the one I posted if you check it on the Cummins site. So that is a concern.