1. Double seal design: The interfaces at both ends of the water pump are manually graduated, making it easier to attach the hose and reducing the risk of detachment. Metal buckles are used for the hose connection to ensure a firmer and tighter seal. The pearshaped design of the fuel pump enhances suction power and enables faster oil release. 2. Easy to use: Simply connect the PVC hose, insert the hose into the tank and the lower hose into the container. Press the suction pump 3 5 times to expel air, then release the manual siphon pump for automatic liquid flow. The manual fuel pump features directional arrows for liquid flow and a builtin shutoff valve to prevent backflow. 3. quality hose pump: The petrol hand pump is made of durable, thick rubber and includes 2 transparent PVC hoses (1.2 m 0.8 m; inner diameter: 8 mm, outer diameter: 10 mm), 2 metal buckles for secure connections, 1 blue mounting clip for attaching hoses to different containers, 1 white flow switch, and 1 extended connector. 4. Wide application: This lightweight, portable hand pressure pump is ideal for safely transferring gas, fuel, oil, petrol, diesel, water, or other noncorrosive liquids. It is for quick filling in various vehicles and devices without antitheft nets, such as lawn mowers, brush cutters, hedge trimmers, lowpressure fuel systems, ships, vehicles, tractors, motorcycles, waterbeds, aquariums, and more.