1、It is mainly used to lead fuel into the fuel pump after replacing the fuel filter, with high practicability. 2、It can realize the maximum length of connecting to the hose, one-way function. 3、Made of rubber and aluminum alloy materials, it is strong and durable, resistant to oil and aging. 4、It has a wide range of applications and can also be used to transfer gasoline, diesel, engine oil, and water. 5、Used for fueling diesel engines in automobiles, motorcycles and ships. Usually used as a hand pump on a ship to supply oil to outboard engines. Item Type: Fuel Transfer Pump Bulb Material: Rubber+AluminiumHole Diameter: Approx. 8mm/0.3in Size: Approx. 150x43mm/5.9x1.7in Appearance: The joint is stepped to facilitate the installation of the hose without falling off Advantages: Resistance to diesel, gasoline, aging, high temperature Opening Pressure: 0.2 bar Working Pressure Range: 0.2-6 bar Working Temperature Range: -30-130℃ Application: Used for fueling diesel engines in automobiles, motorcycles and ships. Usually used as a hand pump on a ship to supply oil to outboard engines. Used to transfer gasoline, diesel, engine oil, water, etc. 1 x Fuel Transfer Pump Bulb