Max. Flow Rate: 110 gph
Max. Head Height: 30 in
Power Consumption: 5W
In a frozen over pond waste gases can accumulate and harm fish and koi wintering over. IceFree is a floating ice preventer that keeps part of the pond surface free of ice down to a temperature of -4F by continually circulating water to the surface. The low power pump used to circulate water is more efficient than using pond heaters for most climates.
OASE IceFree Pond Ice Preventer - B006KT20J4