Compact Magnetic Driven centrifugal pumps combine high flow rates with very low electric current consumption, making them ideally suited for circulating water in live fish tanks, heating and cooling systems. Designed for continuous operation with water/glycol mixture (maximum 60% glycol), fresh or salt water. Liquid temperature: Minimum -40F (-40C), Maximum +212F (+100 degreesC). GPM 6.9 Ports 3/4" Hose Volts 12/24