Features:
1) Outer tank: 304 stainless steel
2) Inner tank material: 304 stainless steel
3) Insulation: polyurethane foaming
4) Heat collection tube: 47 x 1,500mm, 58 x 1,800mm vacuum glass
5) Tube holder: stainless steel
6) Reflector board: stainless steel / aluminum
7) Support frame: stainless steel / aluminum alloy
8) Hermitic sealing rubber ring: silicon rubber

Inner packing: bubble poly bag/blister card