... simple, more cheaper 30g/h Ozone Generator Kits for Large Water Purifier & Water Treatments Model Number: SOG-QT-30G 1.Products ... Sewage disposal facility, SPA and Hot tub, Large Water dispenser, Big Swimming pool, Drinking water company, Pharmaceutical factory and so on. 3. technical ... not ceramic tub The greater the output of ozone tube, for the requirements of precision is higher, but in China, ...