Tetra HT Submersible Aquarium Heater 2 to 15 gallons

Tetra HT Submersible Aquarium Heater, used, in good working condition. For aquarium sized 2 to 15 gallons. Submersible heater is designed to keep your aquarium at the optimum temperature. Electronic thermostat keeps water at a consistent 78 degrees. The red light shows when water is heating; green indicates that the heater is on standby. Just attach to an aquarium wall - the suction cup securely attaches heater to tank. Use this 50-watt heater for aquariums up to 15 gallons - UL Listed.