the product name is Aquarium Pumps

DescriptionHpumps 4108 air pump designs with twin outlets to diverse the air flow more equeal in the fish tankFeaturesPizeoelectrical ceramic plate inside, excellent noiseless effectTwin outlets of air flow,making oxygen supply in good balanceSuper noisless , low vibrationProduct Info.Model                       4108                      4108AVol/Freq.                   220V,50HZ                 110V,60HZDimensionsDia               53*24mmDia                53*24mmWeight                      47g                       38gPower                       3.5 watt                  1.5 wattWater Depth                 600mm                     500mm                 Noise                       38db                      33dbTank Volume                 <100L                     <100LPressure                    12kpa +/-10%              10kpa +/-10%     Flow Rate                   >280+280mm +/-10%         >240+240mm +/-10%Attachments1pc of Air Tube      Inner Dia. 4mm                     Outer Dia. 6mm                     Length 1000mm1pc of Air Stone     Dia.25mm1 Power Adapter     Based on actual power supply and electric plug type1 Suction Cup:      Detachable url:http://www.heyipump.net