I'm looking a manufacture with chemical background that can create a inline filter that can combine activate carbon + KDF + Sodium filter ( this sodium must remove salt from tap water). + anything that can add in so this filter will not corrosive to metal, iron, aluminum & copper. Price Range: 1.00~5.00 USD Minimum Order Quantity: 1000 Unit/Units 联系方式Co:Direct Resoruce Add:United States Tel:1-972-333-8812 Email:hthai2@yahoo.com 联系人:Mr. christian Thai国家:United States产品类别机械五金hthai2@yahoo.com