... SRCC Solar Keymark certification. Inclined roof solar water heater with copper heater pipe.CE,ISO9001-2008,Solar Keymark approved with 100L ... 300L,400,500 capacity. Feature:1. Split solar water heater including solar collector,pressure water tank,controller,work station2. ... 3.3,AL-N-AL absorb coating3. Manifold casing material:aluminium alloy or stainless steel4. Frame material:SUS304 stainless steel5. ...