Tetra HT Submersible Aquarium Heater 10 to 30 gallons

Tetra HT Submersible Aquarium Heater, used, in good working condition. 100Wt For aquarium sized 10 to 30 gallons. AQUARIUM HEATER: Submersible heater is designed to keep your aquarium at the optimum temperature. AUTOMATIC THERMOSTAT: Electronic thermostat keeps water at a consistent 78 degrees. INDICATOR LIGHT: The red light shows when water is heating; green indicates that the heater is on standby. EASY TO USE: Just attach to an aquarium wall - the suction cup securely attaches heater to tank. SIZE: Use this 100-watt heater for aquariums up to 30 gallons - UL Listed.