... .quartz sleeve 2.hydroxy<=5 PPM 3.OEM service 4.used with lamp for water treatment origin:China jiangsu brand:snxin ... the depositpacking:wooden carton production features:Provides different kinds of quartz sleeve, including different diameter, different length, single ... ended, double-ended and special shapeWidely used to water treatment, air disinfection, chimerical reaction and other special equipment ...