Features:
1) Wanbao solar water heater, China well-known trademark
2) ISO9001 / CCC / CE certificate
3) Super and strong heat absorption & preservation
4) Intelligent control and automatic operation
5) Convenient installation: available on both horizontal and slanting house roofs
6) Without incrusting, long usage life
7) Optional accessories: assistant tank, electrical heater
8) 3 years international responsibility for free repairing or exchange due to original quality problems

Specifications:
1) Vacuum tube: borosilicate glass 3.3, AL-N/AL selective absorbing coating
2) Vacuum tube size: ¦µ47x1,500mm / ¦µ58x1,800mm / ¦µ70x2,000mm
3) Vacuum tube qty: 15 / 18 / 21 / 24 / 30 / 36 pcs
4) Interval: 6.7cm(¦µ47x1,500mm) / 7.7cm(¦µ58x1,800mm) / 9.3cm(¦µ70x2,000mm)
5) Heat insulating layer: 50mm / 55mm / 60mm / 70mm thickness polyurethane foam, machinery overall for keeping same temperature and high pressure foam
6) Inner tank: imported SUS304-2B food grade stainless steel, the inner tank is produced by high-frequency ring welding or argon arc welding, which is very durable with high density
7) Thickness of inner tank: 0.3-0.5mm
8) Outer tank: galvanized steel / stainless steel
9) Tank diameter: 420mm / 470mm / 500mm / 520mm
10) Water Capacity: 89L-401L
11) Bracket: Wanbao patent, galvanized steel / aluminum alloy, durable and stability performance, well wind resistance
12) Thickness of bracket: 1.5mm
13) The best angle: a reasonable bracket angle basing on different latitude in order to gain more heat
14) Heat preservation: 72hrs
15) Hail resistance: 25mm
16) Colour selection: red / golden / black / blue / purple