... CE, ISO9001-2008 SRCC Solar Keymark certification. Inclined roof solar water heater with copper heater pipe.CE,ISO9001-2008,Solar Keymark ... ,400,500 capacity. Feature:1. Split solar water heater including solar collector,pressure water tank,controller,work station2. Vacuum tube material:borosilicate ... the flat roof or inclined roof11. Suitable for mains pressure water