Also the AF27684 is out of stock most places and with an unknown delivery date Geno's won't even allow a backorder.
The MOPAR part number is 68517554AA.
Thats interesting with Genos , yet amazon has both Mopar fuel filters . Pricing is a little screwy, I can order both as a set for $147.33 ,free shipping or separately from two different vendors for $124.85. a little skeptical on the 68197867AB ,price is $49, They list the # as 68197867AB-001, not sure I have ever seen the 001 at the end like that . Says its genuine Chrysler .Its Amazon prime ,and free returns ,and 1 day delivery . The other one 68157291AA is is the same other than a couple weeks out on delivery. The pair delivery date is Jan 18 .
Just took another look at the 68197867AB-001 ,its sold from Athens Dodge Chrysler Jeep, gotten filters from them on Amazon before ,shouldn't be an issue , $49 is a great price, not sure why they are that cheap for that rear filter . No Fleetguard air filters on Amazon, nor any indication when they will be available . The Donaldson pack of three are $50 on Amazon .
On edit ,while typing this , the $49 filter disappeared out of my cart , it said only 2 left . You snooze you lose.

, ended up ordering one for $59.89, not a tragedy .
