Non Pressure 200L vacuum tube Solar Water Heater

Feature:
1) non pressure system
2) Stable and reliable performance and well wind resistance
3) economical products
4) Specifications:
1) Thickness of bracket: , galvanized steel 1.5mm
2) Glass vacuum tube: 1.6mm thickness or 2mm thickness glass wall, 58mm x 1800mm or 47mmx 1500mm
3) Inner tank: SUS304-2B food grade stainless steel
4) Outer tank: Color steel
5) Capacity: From 55L to 300L
6) Insulation: 55mm thickness polyurethane
7) Inner tank thickness: 0.4-0.8mm
8) Tank diameter: 470mm/420mm
9) Pressure: Non pressure
10) Heat preservation: 72hrs
11) Hail resistance: 25mm