Solar water heater Integrated solar water heater series. The tube with special effect has the patent of interferential film technology, thus increasing the heat collection performance is better compared to normal tubes and more stable. Optional: Standard tube; 3-hi tube; Diameter: 47mm/58mm Length:1500mm/1800mm/2000mm/2200mm The support is designed with an overall industrial model, which is simple, direct and stable. Optional: Stainless steel material; Aluminum alloy material Standard export carton