... CCC SGS RoHS ISO9001 Project Solar Water Heater For Hotel,School,Villa,Swimming Pool ect. Project Solar Water Heater For SwimmingFrom family to factory; ... used in hotels, school, armies and factories, Automatic supplying water, electric heat, recycling and protectionOuter chest: Galvanized SteelBracket: ... 40mmHeat preservation: 72 hoursMax. pressure bearing: 0.3MPa Solar Water Heater For Swimming Pool