solar panel hot water systems 1, CE, ISO certificates 2, OEM project 3, vacuum tube nonpressure solar water heater 4, 3 year ... / CE certificate 3 years international quality warranty for solar water heater, 1 year warranty for automatic controller Packaging: Vacuum tube ... / carton (for sample order wooden box packing is required), water tank / carton, frame /carton KD-NPB Technical Date ModelArea ...