It occurred to me the other day as I was shelling out almost $30 for a spin on
fuel filter that this thing looks suspiciously like a $2.99 oil filter. Other
than the threading on the base, what is the difference? You cut one open and
they certainly look like the same stuff inside. It also has nothing to do with
the can itself since Perko fuel filter are made from mild steel that rusts up
very quickly if you don't paint them. I prime and paint mine before I install
them and still don't get a year out of one before it starts bleeding rust from
somewhere.