It's our patent product and we call it "Home Hot Water Supplying Center". The tank capacity is 420 liters. And we can use the water to have bath, wash disks, hands etc. It has a great efficiency, and the solar collectiing area is 7.5 square meters. The temperature can reach to 90 degree C in India market.  And we can also do projects with this kind of solar collector.

It's more efficient to use this type to do projects.
Basic information:
Vacuum tubes: diameter 47mm X 1500mm.

Number of vacuum tubes: 60pcs.