[Multifunctional Transfer Pump] This manual water pump is not only for cars(such as transferring gas, fuel, diesel), but it can also be a water changer for fish tank at you home. (because of rubber smell, you can try to use a clear hose to replace rubber pipe. [Superior Material] Made of NBR rubber, the fuel bulb assembly with one-way valve is environmentally friendly, and resistant to aging. So this auto transfer pump kit has a long service life. Theres a mark arrow on the surface of hand pump.Please keep the arrow down before pumping. [Easy to Use] The hose is easy to install and does not fall off easily, and manual syphon pump has built-in direct-flowing valve for faster extraction. [Wide Usage] Peugeot, Renault, ships, helicopters, ships, motorcycles and other fuel systems. The primer bulb pump kit is great for bleeding diesel system. Its perfect for priming a diesel after a change in fuel filter. [A Bottle Opener as Bonus] The bottle opener with a ring is made of aluminum alloy, so its a good supplement for your key ring. With good quality, it has a long service life.