1:Stainless steel solar water heater 2:Aluminum Alloy frame 3:CCC ... Produce as customer's requirment Low pressurized solar water heaterSpecifications1.Solar Keymark,SGS,CE,CCC,ISO9001 2 ... OEMIt is one of the most common used solar water heating system for household, hotel, hospital, project ... the compact system is non-pressurized, water flow depending on gravity water head. This system matched with vacuum ...