DescriptionWith the use of the temperature controller, this heatting rod allows accurate thermal control via the easy set thermostat for precise adjustments. It is easy to install and use, and great for both fresh water and marine water aquariums, aquaculture, terrariums & hydroponic systems!Feature- Color: As shown. - Material: Glass - Size: Approx. 30.5x4x4cm - Easy installation, simple operation, high security - Safe and reliable in both fresh water and salt water aquariums! - Automatic shutdown when the temperature is reached. - With the use of the temperature controller, This allows accurate thermal control via the easy set thermostat for precise adjustments. - Good choice for your fish tank.