20 LITRE Capacity Compact, Single Coil Calorifier, Weight 7Kg 316 Stainless Steel Tank cased in Sturdy Plastic Shell Vertical Deck Mount with Integrated Mounting Brackets 800 Watt SS Heating Element, 1.1/4" fitting 220Volts Width 366mm, Length 430mm, Height 358mm Connections 1/2" gas BSP Male Safety and Non Return valve Max Pressure 4 Bar (58psi)