I am replacing the old Racor 500FE filter on my boat with a new Racor 500MA.
On the 500MA, the fuel ports are #8 O-Ring Boss (3/4 - 16 thread). However, I cannot find out what size ports the old Racor 500FE filter had. It almost looks like they are either #4 or #6 ORB, but I am not completely...