06106 Size: 100 Watt Features: -Filter. -Available in 50 Watt, 100 Watt, 150 Watt, 200 Watt sizes. -Power monitor light: Red for heating and green when aquarium has reached set temperature. -Fully submersible and can be placed horizontally or vertically in aquarium. -For freshwater and marine aquariums. -Shatterproof and nearly indestructible with durable aluminum core and no glass components. -Automatically turns off if heater is left out of water, resets and works normally when placed back in water. -Large temperature control knob makes modifying temperature easy. -Made in United States.