This fits your. Make sure this fits by entering your model number. Power off memory function, When power on, heaters automatically remember the temperature settings in last shutdown. Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. The heating rods to be completely immersed in water use, you can notleave the water for heating use,Please unplug the power supply when cleaning the fish tank or aquarium water changes. 100% Safe: Made of high quality quartz glass, Waterproof double seal material, black protective sleeve, shatter-resistant construction, ensures safe operation and keep your fishes from scalding and punching. Thermostat for Precise temperature range between20-34 degrees.