Works in all types of backyard ponds from 50-600 gallons, Thermostatically controlled heater works automatically during freezing temperatures to keep a vent hole open in the ice. Allows the harmful gasses caused by plant decay and fish waste to escape. Cast aluminum design is very ...Works in all types of backyard ponds from 50-600 gallons, Thermostatically controlled heater works automatically during freezing temperatures to keep a vent hole open in the ice.
Allows the harmful gasses caused by plant decay and fish waste to escape. Cast aluminum design is very durable and efficient and works well in sub zero temperatures, 1250 watts, 10-feet power cord. Dimensions: 4.5 inches long x 7.75 inches wide x 7.75 inches high.