If it’s the same size cup, it’ll take the same size bearings. I haven’t heard of manufacturer-specific bearing sizes, they’re usually standard sizing in fractions of an inch.
From reading about the headset that came with the Kona Lava Dome, sounds like it used oversized bearings on the bottom, I don't know what that means. Anyway, doesn't matter as I think I'll install a new headset.
Noticed that I'm missing the bearings for lower headset cup. It's 1 1/8 threaded headset. Are these all a standard size or specific to manufacturer?