In this case, the "Wix" 51334 looks to be the "M&H" S Korea made version. Very similar in appearance to the Hyun/Kia OEM. C&P anecdotes have shown them to be well made. Being the jobber/commercial line, understandable the Protec has a nitrile adbv. Looks ok, though I'd prefer a silicone adbv. Would need to know pricing to compare to other similar jobber tier filters.
Thanks for the c&p.