Specification of solar water heater:
1) Inner tank: Stainless steel SUS304-2B-0.5mm
2) Outer tank: Color-painted steel-0.4mm
3) Vacuum tube: QB-AL-N/AL-10-4 pa | ??47/58 | 1500/1800mm
4) Insulation: Polyurethane- 65mm-40%kg/m3
5) Bracket: Coated aluminium alloy steel-1.5mm
6) Activated Water Core: Optional
7) Auxiliary electric heater: Optional

Features:
1) Patent (#200830013212.9) technology named Healthy Activated Water.
A. It can keep water much more clean and good for heath by 26 or more kinds of rare elements and mineral materials included.
B. Health care.
C. It is optional.
2) At least 15 years service life.
3) Have passed ISO9001: 2000
4) Environmental, economical and fashion.
5) Easy installation and can be installed on both even and sidelong floor.