1. Model #: SS-NPB01A
2. Water capacity: 30L-420L
3. Solar collector: Cu-S/S-AL/N absorb coating (Three target) vacuum tubes
4. Vacuum tube: 18 pcs tubes, Dia:58mm * Length: 1800mm
5. Inner tank material: Food grade stainless steel (SUS304-2B), 0.4mm thickness
6. Outer tank material: Stainless colored steel, 0.4mm thickness
7. Frame material: Painted galvanized steel, 1.5mm thickness
8. Water tank insulation: High density polyurethane foaming, 55mm thickness
9. Assistant tank: 3L-12L
10. Heat preservation: 72-80h
11. Absorption rate: ≥93%, Heat radiation rate: ≤6%(100°C)
12. Anti freeze: -40 °C, It can resist against 26mm hail