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Feature

The Tetra aquarium heater is safe (UL approved), submersible, compact and easy to use
This heater requires no manual adjustment. Just plug it in, and the electronic thermostat automatically adjusts and maintains your aquarium at 78degreeF
Since it is submersible, it can be easily concealed in your aquarium
It is also very durable since it is made of shatterproof glass
For aquariums up to 30gal

Description

Electronic thermostat automatically maintains water temperature at 782 F (251 C) and also prevents overheating, extending heater life. No adjustments are necessary. Indicator light lets you know when the water is being heated (red light). Silicon Carbide crystals improve heat distribution and transfer. Strong glass tube is heat and shock resistant. Tetra Heater 10-30