Features: 1. Fine workmanship, plastic, durable and has a long service life. 2. Mini size, light weight, easy to carry. 3. Large flow, stable performance and high efficiency, easy installation. 4. Pumping speed is fast, can pumps 30-40 L water per minute(depends on the rpm of drill). 5. Install all the drill chucks, you can use the electric drill to get the pumps, easy and convenient to use.No batteries needed. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. 2. Only pumps, the electric drill is not included. Specification: Material: Plastic Color: Black Pumps Shank: hexagonal shank Shank Dia: 1/4" Inlet/Outlet Inner Dia: 16mm Inlet/Outlet Outer Dia: 19mm Flow Rate: 20-30L/min (120W-350W 1500-2500RPM) 30-40L/min (350W-650W 2500-3500RPM) Size: 126 * 70 * 63mm / 4.96 * 2.76 * 2.48inch Package List: 1 x Drill Pump 2 x Hose Clamp 2 x Screw 2 x Shelf