Aqueon Submersible Aquarium Heaters are designed for fresh and saltwater aquariums. Each unit is fully submersible, shatter resistant and equipped with an electronic thermostat that provides accurate and reliable heating. Additionally, there is an adjustable heat settings ranging from 68° - 88°, an LED which illuminates when actively heating and a built-in auto shut off function that prevents the heater from overheating. The suction cups make horizontal or vertical installation quick and easy. Available in five sizes to accommodate various aquarium sizes.
Suction cup clamps are included.

• Fully submersible with shatter resistant glass
• Electronic thermostat stops heating once set temperature is reached
• Adjustable heat settings, accurate to +/- 1° with LED light that illuminates when heating
• Automatic safety shut off to prevent overheating
• Can be easily installed both vertically or horizontally using the included suction cups
• For fresh or saltwater aquariums up to 40 gallons

Innovative Features!
Electronic thermostat provides more accurate reading and it safer than traditional analog thermostats. Thermal shatter-resistant glass makes this submersible heater extremely durable and precise to +/- 1°F. Unit switches itself off if the heater is not properly submersed, avoiding overheating and damage. An indicator lamp lets you know when it's on.