Econoherm 50W Aquarium Heater Suitable for tanks up to 40 Litre capacity All heaters are fitted with UK 3 pin plug - lead 1.2m long Precise & Reliable temperature control - 16 to 32 degrees C Fully submersible - IP68 Ideal for Tropical / Marine or Freshwater Easy to set required temperature with temperature scale High Quality Components Recommended Aquarium: Up to 40 litres Power: 50W Dimensions: 22 x 230mm Comes complete with 2 x mounting clips and suction cups to attach to the aquarium. Free P&P