You are correct, filters are made in China! But Amazon prime review averaging 4.5 of 5! That's 90% satisfactory response
Not just taking the lack of reviews into account OR point of origin, There are several other threads on these in other RAM forums and the general consensus is to stay away from them.
1 out of 6(?) owners has no issue, that is not going to make me take a chance on a $70K truck.
I'm a man of modest means and it took a lot to get me to make the jump to this truck so I'm going to spend the extra dime, or three, on recommended parts.
Using nothing but Mopar or Cummins filters, IMHO, is worth it.
YMMV
Appreciate you pointing out this deal but it's not for me.
I'm sure others will agree with you and greatly appreciate the link.
OH, FWIW - Try Googling Auto-Defender and find ANYTHING about the company.