--- F denotes a flanged unit.
--- It comes with a flange which is helpful in cases where the
precleaner cannot be mounted directly on the air cleaner (due to
obstructions etc) or where the application faces extreme
vibrations.
--- Secure the flange surface onto the bonnet and connect a hose
to the air cleaner
--- Products are tested by independent institutions in accordance
to ISO 5011:2000.