AAP has them (called CQ Premium HD), my NAPA has started carrying them, and Zoro has had them for a while (& often runs 15% off codes). Efficiency could be better, but they’re built like a tank!
They're available here at local Napas. It seems to be a filter for commercial accounts and fleet vehicles with Baldwin being better known for over-the-road and commercial trucking. But they look well constructed in general...