1.Vacuum tube:GB-AL-N/AL-47-1500/58-1800 2.Inner tank:SUS304-2B,0.4mm 3.Outer tank:Drawbench silver steel,0.4mm Non-pressure two pipe inlet-outlet Solar Water Heater1.Competitive price and good quality 2.Certification:CE CCC ROHS ISO9001 KEYMARK SRCC 3.OEMDescription:This type of product is designed to let water be in and out through double pipe, make the water be up automatically. The system can be closed when the water tank is full, and the water will keep full all the time, so we can use it very easily, and it is popular in the market now. Material:1.Vacuum tube:GB-AL-N/AL-47-1500/58-18002.Inner tank:SUS304-2B,0.4mm3.Outer tank:drawbench silver steel,0.4mm(SUS304-2B,0.4mm) 4.Frame:coated galvanized steel-1.5mm(Aluminium alloy,2.5mm)5.The material of insulation:polyurethane Remark:1.Solar heat storage tank diameter(mm):315/420 360/4602.Thickness,insulated(mm):503.Vent connection(inch):1/24.Electric heater connection:Φ475.Water connections(inch):1/26.Collector angle(degree):20/28/38/45

Non-pressure two pipe inlet-outlet Solar Water Heater