vacuum tube solar water heater 1.ISO, CE, CCC approved, 2. High quality with reasonable price 3.Offer OEM Vacuum tube solar water heater (We can customize products according to customers' requirement)1.Capacity Optional : 135L,150L,165L,200L,250L,300L,2.Working temperature: 99 celsius degree3.Vacuum tube: D58 , L1800mm / D47mm,L1500mm4.Absorber Area:2.06m²/ 2.48m²/ 2.75m²/3.30m²/4.13m²/4.95m²5. ...