Simple operation and hobby-friendly price makes this fully submersible heater a great deal. Tetra HT55 Submersible Aquarium Heater features an easy-to-turn control knob that allows simple temperature settings from 72°F to 85°F. Sensitive heater thermostat performs constant micro adjustments to ensure constant aquarium water temperature. Prevents sharp temperature swings associated with heating and cooling cycles of conventional heaters.
Tetra HT55 Submersible Aquarium Heater features durable borosilicate glass housing that is heat and shock resistant. Printed heater housing blends the unit into the aquarium background for discreet placement. Indicator light allows simple, visual confirmation of heater operation. 200W Tetra HT55 Submersible Aquarium Heater measures 11-1/2" long and is recommended for aquariums between 30 and 55 gallons.
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