Why are useable part numbers so difficult to track down and trust? Would be great to confirm that *all* filters that have dual port are the same dimensions and performance spec, and can be purchased separately from the pans.
If we can get a dual port Grenadier / ZF filter to manufacturers who make the aluminum pans, maybe they'll be willing to mod their designs to support them, since they should still be backward compatible with single port uptake filters.
/s.
