Description: Fine workmanship, plastic, durable and has a long service life. Large flow, stable performance and high efficiency, easy installation. Install all the drill chucks, you can use the electric drill to get the pump, easy an convenient to use. Compact and light weight design, portable and easy to store. The recommended speed is 1500-3500 rpm. The pump head and flow are related to the speed. The higher the speed, the higher the head and flow. Specification: Color: black Size: Approx. 106x37x64mm Material: Plastic Net Weight: Approx. 218g Inner Tube Diameter: Approx. 15mm Transmission Shaft Diameter: 8mm Round Shank Working Temperature: Approx. 5-49℃(41-120℉) Operation Instruction: 1. To achieve optimum priming and long service life, apply a few drops of lubricating oil in pump inlet prior to each use and flush with clean water after each use 2. Be sure inlet hose is airtight and as short as possible, inlet hose should not exceed 9FT(2.75m) 3. When pumping abrasive fluids or liquids with solids, using a strainer on the inlet line for longer service time 4. It is recommended that the pump is mounted to a surface for security and ease of use 5. Mount and start drill, observe whether the inlet has a certain fluid that is sucked into the pump within 15-20 seconds. If not, check that inlet tube is properly mounted to inlet pump. Do not run dry, if pump fails to for prime, check if the hose is kinked or clogged 6.Pumping speed is fast, can pump 25-30L water per minute(depends on the rpm of drill) Package Includes: 1 Piece Drill Pump 2 Pieces Hose Clamp 1 Piece Connector Note: Please allow slightly measuring deviation due to manual measurement.