Johnson Pump 3/4 in. CM30P7-1 Centrifugal Pump 10-24504-03 (Same as 10-24489-03 but hardwire version) 3/4" Inlet / Outlet Ports - 6.9 GPM Flow Rate - 12V DC Operation Extra heavy duty construction Motors designed for continuous operation Magnetically driven Suitable for fresh water and ethylene glycol circulation