Atman Ph2500 Skimmer Pump with Needle Wheel Impeller Sca-303 by SC Aquariums Atman PH2500 Skimmer Pump With needle wheel impeller produce micro bubble AC 110-120V 60Hz 45.5 Watt Designed for USA and Canada use only 2400 LPH or 700 GPH (water flow is different when used as skimmer pump) Ideal Replacement pump for most skimmers available in the market now Replacement pump for SC Aquariums SCA-303 150 gallon skimmer