Often used for freeze protection in outdoor containers, these heaters float on the water’s surface and automatically turn on when the water temperature drops below 45° F and turn off when it rises above 65° F. They are for use in metal containers. All have an Incoloy heating element for excellent corrosion resistance.

Clip-on heater guards (sold separately) prevent the heating element from contacting the sides of the container, allowing floating heaters be used in plastic containers.