... type have CHYS-2B-6, CHYS-2B-12, CHYS-2B-24, and so on. "CHYS" means water ozone machine,"2" means ... 6g/h ; it can be adjusted from "6"to "12" ,"24","36"or more.(2). CHYS-XC-X type have CHYS-2C ... -6,CHYS-2C-12,CHYS-2C-24, and so on, "CHYS" means water ozone machine, "2"means ...