Designed to keep a vent hole open in ice to release harmful gasses caused by plant decay and fish waste. At 200 watts of power, this unit is very energy efficient and uses much less electricity. It's low profile, lightweight design minimizes wind resistance and floats easily on the pond. It is thermostatically controlled to operate only when necessary and comes with a one year manufacturer warranty.

Made of a cast aluminum design featuring a baked-on enamel finish with 75-watts of power. It is thermostatically controlled to operate only when necessary and has been field tested to -20 degrees Fahrenheit for maximum performance. Contoured surface is paintable to match the color of any birdbath. 3 year manufacturer guarantee.