I just got it on Amazon - no name brand: https://www.amazon.com/gp/aw/d/B08CPRGBHL/ref=ppx_yo_mob_b_track_package_o0_img?ie=UTF8&psc=1

I do the nonstandard setup to get the trompo from all sides with fairly even heat. The two zone setup would probably work ok, but I think this results in more even cooking and takes less time.