Originally Posted By: Sayjac
Looking at jkasch dissection pics, the SRT shown of looks like a Wix made filter. It uses a coil compression spring like Wix. That said, unlike the Purolator made Mopar it doesn't use Wix thread end bypass, so dome bypass. I don't see the thread end spacer normally used with Wix made dome bypass. But the SRT of may be a one-off filter.
So best guess with information provided, Wix made filter.
It's much like the Wix 57899 / NG 7899 cross for the Mopar MO-899 in regard to construction details (dome end bypass, no spacer) but differs in having nitrile ADBV and who knows what for sure media from Poland, and is said to have higher BPV set pressure.