heat pipe solar collector

Specifications:
1) Manifold (interior): Red copper
2) Manifold (exterior): stainless steel 1.5mm
3) Glass tube dimensions: 58mm x 1.8m / 47mm x 1.5m
4) Insulation layer: 50mm Rock Wool.
5) Hail resistance: 25mm
6) Max pressure: 6 bar
7) Coating of vacuum tube: SS-C/CU
8) Heat pipe : anti-freezing > -35 degree

Key features:
1.Internationally certified product
2.Reliable, efficient, twin-glass evacuated tubes
3.Copper heat pipes for rapid heat transfer
4.Easy plug-in installation
5.Suitable for mains pressure water (up to 8 bar/116psi)
6.Corrosion resistant red brazed copper header
7.All stainless steel frame (310/416 grade SS)
8.Black or Silver aluminium casing
9.The perfect solar collector for domestic solar water heater systems
10.Ideal for commercial solar water heating applications
11.Comprehensive 10 year limited warranty