solar collector features: 1. Vacuum tube material: Borosilicate glass 3.3; AL-N-AL absorb coating 2. Manifold casing material: Aluminum alloy 3. Frame material: Stainless steel 4. Header pipe material: Copper 5. Heat pipe material: Copper 6. Insulation: Rock wool 7. Seal material: Stabilized High Temperature Silicon 8. Able to use in any climate 9. Easy plug-in installation for mounting on the flat roof or inclined roof 10. Suitable for mains pressure water(up to 8 bar/116psi)Solar Heater Features: 1. Vacuum tube material: Borosilicate glass 3.3; AL-N-AL absorb coating 2. Manifold casing material: Aluminum alloy t;br>3. Frame material: Stainless steel 4. Header pipe material: Copper 5. Heat pipeeat pipeeat pipe material: Copper 6. Insulation: Rock wool 7. Seal material: Stabilized High Temperature Silicon 8. Able to use in any climate 9. Easy plug-in installation for mounting on the flat roof or inclined roof 10. Suitable for mains pressure water(up to 8 bar/116psi)

solar collector