Safe for plastic and liner ponds and won't harm fish and plants. The unit includes a highly visible LED pilot light that indicates when it's on, a 15-watt heating element that melts snowfall on contact to allow clear visibility of the LED light, a thermostatically-controlled on/off feature that prevents overheating and saves energy costs, and a 22 ft (7 m) electrical cord with grounded plug.

Product Features:

Keeps an area thawed, preventing the pond from completely freezing and allows for crucial gas exchange..

Safe for plastic and liner ponds, will not harm fish.

Convenient hook for installing aeration hosing.

Automatic shutoff that prevents overheating.

Includes a 15-watt heating element that melts snowfall on contact.

22 ft (7 m) cord with grounded plug.