MarineLand Precision Heater for Saltwater or Freshwater Aquariums

Get precise control of your aquarium temperature with the Precision Submersible Heater.This Heater combines an adjustable temperature dial, a high visibility temperature display and an advanced heating element to keep your aquarium water at the optimal temperature for your freshwater or saltwater fish.The Precision heater also includes a thermal switch which will turn off once it rises above an internal pre-set temperature, and turns back on once it cools down, making your aquarium safer for you and your fish.This 150 watt heater is designed for aquariums up to 40 gallons.'