... for high,middle,low temprature(+5°C— -25°C)1.light in weight,convenient intallation,compact structure,Rapid temperature falling,long ... for high,middle,low temprature(+5°C— -25°C)1.light in weight,convenient intallation,compact structure,Rapid temperature falling,long ... tube(mm)ORGREN-1001HP370x215x37040 ORG type titanium heat exchanger for swimming pool