1.Solar Water Heater 2.EN12975 & solar key mark 3.Anti-freezen & pressurized 4.15 Years Warranty for vacuum tube SPLIT PRESSURIZED SOLAR WATER HEATER FEATURE:1. Solar water heater with SOLAR KEY MARK certificate2 ... , water tank/boiler, circulation pump, expansion evessel, controller,flowing meter,pressure gauge3) Capacity: 150L,200L,250L,300L,500L4) Working temperature: 99 celsius ...