I was basing it on the VAFI/PGI partner list which lists Service Champ.
It looks like they are just using a variety of sources... Here below is the one that is VAFI/PG with the Leak Tested stamp and I will bet you this HP is the regular syn blend media.... I think the OP filter is coming from some other factory (not Afi) out of China because it would likely have the typical leak tested stamp and other font if it was Afi.

Here is a CHAMP made Service Champ "Synthetic" that is most likely just a typical Champ or Supertech MP syn blend filter.

Here is a Service Champ "Synthetic" which could be out of the AFI China factory with the silicone gasket and what looks like syn blend media.

Another VAFI

Here is one possibly from the other China factory that did the OP filter with this one also full syn media and what looks like a nitrile or aem gasket:
