High flow rate, stable property and high efficiency. Compact, convenient to carry and store. Easy to install and simple to use. No batteries required. Suitable for all drill chucks, you can get a pump with an electric drill. Perfect for transferring light liquids, such as , sea water, , diluted organic solvents, insecticides and liquid fertilizers. Shank Diameter: 1/4 inch Inlet/Outlet Inner Diameter: 16 mm Inlet/Outlet Outer Diameter: 19 mm Flow Rate: 20-30L/min (120W-350W 1500- 2500RPM) 30-40L/min (350W-650W 2500-3500RPM) Color: Black Material: Plastic + Metal Size: 126x63mm />Package Contents: 2 x Pump 4 x Hose Clamps 4 x Screws 4 x Shelves Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.