Tetra HT55 Submersible Aquarium Heater Submersible Fish Tank Heater – 200 Watt – 40 – 55

• 200 watt submersible heater for tanks 40 to 55 gallons
• Electronic thermostat automatically maintains water temperature and prevents overheating extending heater life
• No adjustments are needed
• The indicator light lets you know when the water is being heated (red) and when it is at the proper temperature (green)
• Silicon carbide crystals improve heat distribution and transfer
• Strong glass tube is heat and shock resistant