1.Domestic rooftop solar water heater 2.Easy to be installed 3.CE,ISO9001,ROHS,Solar Keymark,SRCC,approved 4.OEM is welcome Evacuated Tube Solar Collector Vacuum Tube Solar Collector Features: 1) Reliable and efficient twin-glass solar tubes; 2) Copper heat pipes for rapid heat transfer; 3) Easy plug-in installation; 4) Free maintenance; 5) Suitable for mains pressure water (up to 1.0 bar); 6) ...