Maybe weatherking or corsaire but not rheem or ruud. Rheem and ruud have all scroll comp.s.
Karst means cave. So, I search for caves.
Last year, the Ruud Zephyrs still had reciprocating "tin cans". No bout adoubt it, dude.
Technically the Zyephyr is not genuine Ruud, just like Payne isn't a Carrier. Just a little marketing game so they can say they are 100% scroll