solar water heater system 1. Solar Keymark,SGS,CE, CCC, ISO9001 2. high quality&competitive product 3. 10 years experience solar water heater systemDetailed ... design 2) Temperature preservation is equipped with standard electric water heater setting, automatic temperature control exchanger, and increased anode magnesium bars ... capacity: 150L, 200L, 300L,500L7) Pressure: 6 bar solar water heater system