Aqueon Preset Heater

Preset Heaters Aqueon Preset Aquarium Heaters require no adjusting! The preset temperature has been calibrated to 78°, appropriate for most tropical fish. This unit is fully submersible, constructed of shatter-resistant quartz glass and features an automatic safety shut-off to avoid overheating. The heaters include suction cups and can be placed vertically or horizontally within the aquarium.  An LED indicator light displays red when actively heating. Preset to 78°, accurate to +/- 1° No adjustment required Shatter resistant Auto shut-off LED light turns on when aquarium water is being heated 50W Ideal for aquariums up to 20 gallons 100W Ideal for aquariums up to 30 gallons 150W Ideal for aquariums up to 55 gallons