Flat plate solar collector:
Operation Pressure : 0.6MPa      Testing Pressure : 1.2MPa (keeps 5 minutes)
Collector area: 1.50 m2 (1.60m2) and 2.00 m2
Cover material: 3.2mm-4mm tempered glass
Absorber material: Ordinary black paint:Aluminum Absorber Fin 110 x 0.35mm x 1385mm x 10pcs/
                             High quality black paint Blue paint:Aluminium board
Absorber coating: Black chrome/Blue titanium Sputtering coating
Header tube: Copper,Ø22mm,thickness:0.6mm 
Riser tube:Ordinary black paint:Copper-aluminum alloy Ø10mm xT0.5mm x 10pcs /
                 High quality black paint Blue paint:TP2/CA1220,Ø8mm,thickness:0.6mm,8pcs
Insulation material 40-45mm Glass wool layer/Fiberglass                                                                                    
Side Insulation : 20mm fiberglass layer

Frame Aluminum alloy         Frame color silvery or black
Back plate: 0.4mm galvanized steel material/Aluminium plate
Sealing profile: EPDM              Leak-proof protection: EPDM

Water tank:
1) Water tank (interior): Stainless steel SUS304-2B 0.5mm
2) Water tank (exterior): Painted steel 0.5mm/Stainless steel 0.5mm (more expensive)
3) Frame: coated galvanized steel-1.5mm
4) Insulation: polyurethane 60mm

You can choose following component with the equipment
Electric heater  7USD
Auxiliary tank  11.7USD
Controller  25USD