Yeah im using that same filter(2 micron) for the secondary, and using a 10 micron water seperator as a primary.
EDIT:
I looked at his kit and don't really care for it, i dont like the idea of having the filter under the truck,especially in a wheel well. Both of mine will be in the engine compartment, safe and out of harms way. He also tell yous to prefill the filter, which is a no-no, cause thats putting unfiltered fuel right back into the system. He does show how good the Cat 2 micron filter is though by having the cutaway. Also running the filters that way (2 micron before 10 micron) tend to cause the fine one to plug up as it is getting raw dirt right from the tank, and is designed to filter fuel that has already gone through a 10 micron screen. If you do it his way, always carry a spare filter.
