High quality material: made of aluminum alloy, it is sturdy and durable as well as wear-resistant. Corrosion and rust and can be used for a long time. The aluminum head has a longer service life than the plastic head and is easy to clean. install and replace. Professional check valve: suitable for automatic carburetor and low pressure fuel system, at low pressure. gasoline or diesel. By using an aluminum check valve, the problem of fuel backflow to the outlet can be effectively solved. through the pipeline, making it difficult to start or brake the vehicle. Product function: When the device stops working, the oil circuit is closed. to prevent the backflow of liquids such as gasoline and fuel. The valve is marked with an arrow, the arrow indicates the direction of the liquid flow, and the liquid can only flow in this direction. Thread design: The interface of the carburetor aluminum check valve is designed with a threaded connection design. This makes the connection more secure. Can be