... 2.durable,green,good quality & price 3.non-pressurized solar water heater,OEM Split pressurized solar water heater non-pressurized solar water heater,solar hot water heater,OEM solar water heater *Materials: A) Inner tank: SUS304-2B food ... (maximum 72 hours conservation)*Capacity: 150, 200, 250, 300, 400 and 500 Liters *3 years international quality guarantee for the whole ...