Winter Survival Solution for Fish. Keeps a small area of the pond ice-free, allowing harmful gases caused by decaying matter and fish waste to escape through the opening. 

Effective to -20F.

Thermostatically-controlled

300 watts.

15’ cord.

Use one de-icer for every 150 sq feet of pond surface.

Effective to - 20°F (-28.8°C). 15 foot cord. 3-year limited warranty.