This is the 2 micron fuel filter that is a direct fit for all AirDog I, AirDog II, and AirDog II-4G models.
Cross Reference Numbers: (Note, this is for fitment and not micron rating):
NAPA: 3420
WIX: 33420
Baldwin: BF-7531
Fleetguard: 5613
LuberFiner: LFF3545
