... school or some large projects,economical,efficient,harmonious with architecture Solar Collector Module High quality,has passed CCC,Solarkeymark,IQNet,SGS,ISO9001 ... same time, so it can fit for various requirement. Solar Collector Module:Sangle high-efficient vacuum heat collector tubeInner Tank Material: SUS3042B ... (W)1910x(H)1080mmAperture Area: 6.6m2/unitArea:6.2m2 Solar Collector Module