Split thermal Hot water systems 1.OEM provide 2.SOLAR KEYMARK,SRCC,CE 3.Antifreezing - ... 40 degree 4.Warranty:10 years Split thermal Hot water systems Descriptions:Split pressurized solar watr heater features1. The upright tank ... /30 tubesOEMProvideWorking stationSP116,SP228Heat exchanger length15m Split thermal Hot water systems