Structure : Centrifugal PumpPower : PneumaticFuel : ElectricPressure : High PressureUsage : WaterModel Number : PumpsApplication : for electric drillTheory : Centrifugal PumpStandard or Nonstandard : StandardCertification : CEDrill water PumpingFeatures:Compact lightweight.Powered pump is perfect for electric drillIdeal for transferring light liquids such as fresh water, sea water, oil, dilute organic solvents, insecticides & liquid fertilisers.Robust plastic body and stainless steel internal parts avoid corrosion.Specifications:Suitable for use with electric drill with output of 350W or moreMaterial: Stainless Steel + Engineering PlasticColor: Blue,As the picture shownSize: app.125mmx107mmx78.6mm/4.92inx4.21inx3.09inInside diameter: 15.8mm/0.62inOutter diameter: 21mm/0.83inElectric drill PowerRotating speedWater output120W150025-30L/Min320W2000-250035L/Min350W250040L/Min450W3200-350050L/Min650W3200-350056-60L/MinWarm Tip : Transition: 1cm=10mm=0.39inch Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the colour tone of the website's photo and the actual item.Item Measure by hand, it could be 1cm different,your kind understanding will be much appreciated.