1. Easy installation;
2. Reliable and efficient ;
3. Corrosion resistant materials;
4. Stable solar conversion during the day;
5. Most efficient and most economic model;
6. Ideal for many solar water heating applications;
7. Economic goods surpass their money with good efficiency;
8. Aluminum frame, Galvanized steel frame, or color steel frame;
9. Simple structure and working principle but the most economical.
