... 1.Corrosion and acid resistance 2.multiple protection devices 3. 30L,40L, 50L,60L,80L,100L Electric water heaterModel:DSZF-C1 ... 75 degrees Celsius7)Volume:30-100Stainless steel cylinder inner tank: 30L,40L, 50L,60L,80L,100L Electric Water Heater With CE ...