What relation does the size of Tourmaline Ceramic Ball with the efficacy of water treatment?
If tourmaline ceramic ball is smaller, specific surface area of the ball will be bigger. Of course, its efficacy of treating water will be better than that of the bigger one. But if the ball is smaller, the manufacturing technology will be more complex and difficult. Therefore, comparing that, with the same material the price of smaller ball is higher than that of the bigger one.