... tank :Galvanized Steel 3.Bracket:Galvanized steel 4.Al/N/Al/Cu/SS Integrated Pressurized Solar Water Heater ,solar water heater,heat pipe solar water heater,pressure solar water heating,solar water heating,solar ... , easy installation8) Warranty: 5 years9) Optional accessories: assistant tank, electric heater, reflector ,automatic inlet water valve, Magnesium anode, ect. Product ModelTubes QtyTank (L ...