Tetra Submersible Aquarium Heater 30-40gl 150w

Tetra's 150 Watt Submersible Heater is designed for 30 to 40 gallon Aquariums. UL listed. Electronic thermostat automatically maintains water temperature. Prevents overheating, extending heater life. No adjustments necessary. The indicator light lets you know when the water is being heated (red light) and when it is at the proper temperature (green light). Silicon Carbide crystals improve heat distribution and transfer. Strong glass tube is heat and shock resistant. Features: Prevents overheating, extending heater life Includes: 1 Heater and InstructionsUsed For: AquariumsWatts: 150 Watts