Aqueon Submersible Aquarium Heater [Aquarium, Heaters Submersible] 300 Watt

Aqueon Submersible Aquarium Heaters maintain precision temperature control with a digital thermostat that provides more accurate readings (+/-1°F) than traditional analog thermostats. The heater unit features an auto-shut off feature for safety, and extremely durable thermal shatter-resistant glass construction. * Compact size with shatter resistant construction * Electronic thermostat provides accurate and reliable heating * Precise temperature control to +/-1°F * Auto-safety shut off and overheat protection * For fresh or saltwater aquariums Includes suction cup clamps for easy mounting. May be installed vertically or horizontally. Indicator lamp shows when heater is operational. Specifications: * Lifetime warranty * 3/4 glass tube diameter * UL listed