Specifications:
Manifold material: Aluminum alloy; Thickness: 2.00mm
Insulation: Rock wool
Core inside: Copper (T2); Thickness: 1.50mm
Frame: Aluminum alloy; Thickness: 2.00mm
Diameter of the core: 35mm
Cover material: Nylon
Diameter of Interface: 22mm
Solar tube: Heat pipe vacuum tube
Stand parts: Aluminum alloy; Thickness: 2.00mm
Reflector: Aluminum alloy
Manifold is Rectangle shape

Features:
1) Reliable and efficient twin-glass solar tubes
2) Copper heat pipes for rapid heat transfer
3) Easy plug-in installation
4) Free maintenance
5) Suitable for mains pressure water (up to 8 bar/116psi)
6) Corrosion resistant silver brazed copper header
7) Powder coated (black, brown or silver) aluminum casing
8) Stable solar conversion throughout the day (tubes passively track the sun)
9) The perfect solar collector for domestic solar water heater systems
10) Ideal for commercial solar water heating applications