... easy installation, reliable qualityVacuum Tube Solar Water HeaterThe following are the features of our vacuum tube solar water heater:CE certified, high efficiency, reliable ... Food class SUS 304 2B stainless steel sheet with thickness of 0.5mm;Inner tank Dia.: 310mm, 360mm, ... 470mm 600mm;Insulation material: High pressure PU foaming with thickness of 55 mm;Stand: Stainless steel profile, high intensity ...