product specification:
Capacity:  30 liters
Outer shell: epoxy or polyester coated sheet
Insulation material: environmentally friendly polyurethane, with a density of 40 kg/m3
Inner tank: hydra-stone or stainless steel plated sheet
Heating element: high purity copper or stainless steel
In/out connections: ¾ inch
Thermostat (double protection): Single current - adjustable up to 75 ±5°C
Warranty period: 50 months
Spare parts: always available