I am just going by a couple of pictures posted on this site. The filters looked pretty filthy to me and enough so to be an obstacle to push gas through. I assume that controller is going raise amperage until it gets the pressure requested, as measured at the fuel rail.
The pre filter is supposed to be 10 microns. I would expect the the post pump filter to be similar.
You don't change gas filters in your car with each oil change? My Jiffy lube guy tells me I need one.