Tetra Submersible Heater HT40 – 150 Watt {L+b}

Tetra's Ht Line Of Heaters Are Easy-to-use And Easy To Conceal. Our Ht Submersible Heaters Have Electronic Thermostats That Automatically Adjust Heat Output To Keep Water At A Constant 78 Degrees F. The Tetra Ht 40 Is Designed For 30-40 Gallon Aquariums.