High Flow Hand Siphon Pump: With L2m D21mm durable lengthen and thicken clear PVC pipe, oil, high temperature and corrosion resistant makes this pump transfer more quickly, pumps 10L/Min. | Easy To Use: Built-in outlet and inlet valve to prevent backflow, extraction directly, liquid outflow in 5 seconds. The arrow indicates flow direction. | Multi-function: Lightweight and portable hand transfer pump, ideal for vehicles without anti-theft filter net, such as lawn Mower, brush cutter, hedge trimmer, etc. | Wide Usage: This manual water pump is for fuel petrol diesel gasoline oil water and other common liquids, also can be a water changer for fish tank at you home. | Note: The fluid you are trying to extract has to be HIGHER than the influent bucket. The fitting end must kept inside of the fluid not just on the surface.