Aqueon Preset Aquarium Heater Black, 50 Watts, Up To 20 Gallons

Aqueon Submersible Aquarium Heaters are made from thermal shatter-resistant quartz glass and designed to absorb impacts, making them extremely durable. A power indicator light turns on when the unit is heating and is equipped with a 6-foot power cord. UL approved, the heater is also programmed to turn itself off when not properly submersed to avoid overheating and damage. This heater can be positioned at a vertical or horizontal angle and used in freshwater and saltwater aquariums. Aqueon products offers a wide range of items so that you can build and maintain a healthy aquatic environment. We make it easy for you to get your first aquarium and to grow in the hobby as you become more of a fish expert with every step you take and every new thing you learn. With the Aqueon brand, it's all about the fish. Fully submersible, auto shut-off when overheats, resets when cools down Precise temperature setting adjustable to 1° F (68-88° F) Shatter-resistant For freshwater and saltwater aquariums up to 20 gallons