COLSTON Pvt. Ltd. Manufactures Spa with Computer Control Panel. COLSTON Pvt. Ltd. Is the manufacturer and supplier of bathing products. Spa with Computer Control Panel comes with ac220v rated voltage, lf50hz rated frequency, dc12v control circuit voltage, 700watt air pump power, 2hp water pump power, 3000watt heater power, 20watt bottom lamp power, 2330x2330x880 mm packing size, 330 kg gross weight and 250 kg net weight features.