Patented Household Water Filter,water tap filteration 1, Eliminate Chlorine 2. Double Zinc 3, High PH value 4. Enrich Oxygen Patented Household Water Filter, ,water tap filteration, water purification, Water softener, alkaline water maker Product nameHousehold Water filterProduct Item No.OS1600Main functions1, Eliminate Chlorine2. Double Zinc3, High PH value4. Enrich Oxygen5. Makes Energy Water6. ...