... .4 InchMaterialStainless SteelT=2.5 mm+-0.2mmMain Components Heating Elements3 Sets, 220V, Single Phase, 50 HZ, 6000WWater ... Switch2. Pump On/Off Switch3. Heating Element #1On/Off Switch4. Heating Element #2 On/Off Switch5. Heating Element #3 On/Off Switch6. Timer ... Switch2. Pump On/Off Switch3. Heating Element #1On/Off Switch4. Heating Element #2 On/Off Switch5. Heating Element #3 On/Off Switch6. Timer ...