1、Stainless Steel: Aquarium heater is made of durable stainless steel resistant material, corrosion resistant and durable, suitable for saltwater and freshwater use. 2、Safe and Reliable: The aquarium thermostat heating rod is explosion proof, damage resistant, heats up faster and has a long service life. 3、Automatic Thermostatic: The aquarium heater features an intelligent automatic thermostatic system with built in bimetal control to ensure accurate heat output. 4、Adjustable Temperature: The thermostatic heating rod has a rotating top to adjust the temperature and step heating for more energy savings. 5、With Suction Cups: Aquarium heating tube is equipped with strong suction cups, which need to be installed in the non heating area of the heating rod body. Item Type: Aquarium Heater Material: Stainless Steel Use: Fish Tank Heating Rod 1 x Aquarium Heater 2 x Suction Cups