Vacuum Tube Solar Water Heater Feature:
1.Inner Tank: stainless steel SUS304-2B 0.4mm thickness

2.Outer Tank: Galvanized steel

3.Frame:stainless steel or galvanized steel

4.Vacuum Tube model: 47*1500mm ,58*1800mm

5.Reflector : Stainless steel( optional)

6.Tube Quantity: 12,15,18,20,24,30 pieces of tubes are available .

7.Insulation : Polyurethan foam ,thickness , 50mm ,55mm and 60mm

8.Hail resistance: 25mm