Marineland Stealth 50 Visi-Therm Submersible Aquarium Heater (8"Length)

Completely submersible aquarium heater is calibrated for superior accuracy in your freshwater or marine aquarium.The UL-approved heater is so streamlined, you can't even tell it's there.Temp Select DialAllows easy setting, just dial to the desired aquarium temperature.Reinforced Plastic CasingProtects components against UV s and thermal/mechanical shock.Overheat ProtectionShuts down if heater is left out of water. Restarts automatically when in water.Aluminum Cylinder and Eight-Cavity Heating ElementDistribute core heat evenly.Shock AbsorberSafely secures heating element.