Details Description Titanium Tube Sleek analog controller Maintain water temperature within /-2F of the set value Corrosion resistant. Hang on hook and LED power indicator. The Finnex Compact Electronic Titanium Heaters maintain water temperature within /-2F of the set value providing a safe, healthy and stable temperature for your tank. The titanium tubes are corrosion resistant which makes these virtually unbreakable for both saltwater and freshwater aquariums. These ultra fast heating tubes are easy to hide as they are compact in size and also include a precise electronic control with hang on hook. There is also a LED Heating indicator to let users know when the heater is functioning. The titanium heating element is engulfed in a protective guard to ensure the safety of both the aquatic inhabitants and surrounding equipment. Suction cups included. Specifications Model Wattage Water Volume HMA-50 50 10 – 20 gallons HMA-100 100 20 – 30 gallons HMA-150 150 30 – 60 gallons HMA-200 200 60 – 80 gallons HMA-300 300 80 – 100 gallons HMA-500 500 100 – 120 gallons