The Aqueon Submersible Aquarium Heater has thermal,
shatter-resistant glass and dual calibration process which makes
this submersible heater extremely durable and accurate to +/- 1ÃÂ°F.
Unit switches itself off if the heater is not properly submersed,
avoiding overheating and damage.
- Precise temperature setting to 1ÃÂ° (68-88ÃÂ°F)
- Shatter resistant construction
- Automatic safety shut off and overheat protection
- Fresh or saltwater
- Works well in 15-40 gallon aquariums
3/4" glass tube10" L