1,300LNon-pressure Flat plate solar water heater one in all 2,OEM & ODM Certified factory since ... ISO9001,2008,SRCC,CE Technical data of 150Liters Non-pressure flat plate solar water heater ModelCP-NPSWH150Water Storage TankSystem Circulation TypeNon-pressurized open loop(Thermosyphon ... foam with PE Cover (Φ22mm)Connection fittingsΦ22mm*G3/4" Compact Flat plate solar water heater ,300Liters Capacity