The double check valve has a faster flow rate, and the two-way check valve is easy to operate and output oil quickly Made of high-quality materials, durable, oil and aging resistance. After replacing the fuel filter, introduce fuel to the fuel pump. One-way function. Used for the transportation of gasoline, diesel, engine oil, water, etc. Simple and effective tool for fueling diesel engines in cars, motorcycles and boats packages: 1pc Car emergency pumping airbag + 2pcs clamps
