RESUN Rising Heat - 300W Submersible Aquarium Immersion Heater  (Pack of 1, Black)

The Resun Rising Heat 300W Aquarium Heater is ideal for large tanks up to 300 litres (75 gallons). Engineered with spiral heating technology, it delivers consistent and efficient heat distribution—ensuring a stable, healthy environment for your tropical fish and aquatic plants. Equipped with a top-mounted temperature control dial for precise adjustments and a red indicator light that shows when your desired temperature is reached, it offers user-friendly functionality for both novice and advanced aquarists. Designed for flexibility and safety, the heater features dual mounting options (vertical or semi-horizontal), a watertight safety cap, and must be fully submerged during use. Two suction cup brackets are included for quick, secure installation.