These aquarium heaters are purposefully designed for fish tanks, of many different sizes. Designed with a 2 mm thickened quartz glass, this heater is not only 33% thicker than the typical 1.5mm aquarium heaters, but also offers an elevated level of safety for both your fish and you, eliminating worries about the winter's cold

The adjustable temperature range is between 68 to 93°F. Once your preferred temperature is set, the heater automatically turns on or off according to the water temperature fluctuations, making manual adjustments unnecessary.

The heater has an impressive built-in thermostat offering incredible temperature control accuracy within a ±2°F error margin. It even comes with a sticker thermometer, enabling you to monitor your aquarium's temperature without a hitch.

Installation is a walk in the park; it can be done at any angle using the 2 provided high-powered suction cups, as long as it is fully submerged. The 50W heater should be placed in sections with good water circulation and can easily be concealed behind plants or other ornaments thanks to its grey color. We offer a 30 day return policy and a one year warranty. Buy with confidence! All orders ship from Indianapolis, IN, USA