... pipe solar water heater 1) CE, ISO9001,CGC certificate; 2) heat pipe solar water heater 3) green and economical; Baoguang domestic compact unpressurized solar water ... *1800mm,High borosilicate glass,hardness 3.3, with Al-N-AL coating2). Inner tank: Food grade SUS304-2B stainless ... ,82,98,110,136,156Kg DescripitNon-pressurized solar water heaterinner tank materialSUS304-2B Food Class Stainless Steelouter ...