Split Solar Water Heating System: 1.CE ISO9001 CCC 2.Stable And Reliable Performance 3.Energy ... .Outer Tank:Galvanized Steel/Stainless Steel.4.Accessorues:Electrical Heating,SafetyValve,Magnesium Bar,Temperature Sensor,Controller,Electrical Elements,etc ... Liquid.2.Temperature Preservation Is Equipped With Standard Electric Water Heater Setting,Automatic Temperature Control Exchanger,And Increase Anode ...