Recommended 912ULS fuel filter

I have the same set up as you, in my Sonex . Early days but it seems to be fine. Make sure your gascolator screen conforms to Rotax recommended standard (From poor memory 100-50 mu).

My last aircraft, ATEC Zephyr/912/ULS, used Hengst H102WK & Hengst H103WK gauze filters on main, boost  and reserve supply lines (no Gascolator). 10 years 950 hrs never a fuel problem.

This is a common set up/filter on European Rotax motivated aircraft.