Gdnecad 2 PCS One Way Check Valve, 3/8" 10mm Aluminium Alloy Inline Fuel Hose Check Valves with Adjustable Clamps, Non Return One-Way Control Valve for Gasoline Diesel Oil Water

["Primary Function: The non-return one-way check valves ensure that the fuel flows only in one direction in the fuel supply line, effectively keeping it from flowing back to the fuel tank. Besides, they maintain smooth, consistent fuel delivery, enhancing engine operational reliability","Unique Design: The inlet and outlet of the car fuel check valve feature barbed fittings, ensuring a secure hose connection that resists loosening even under vibration. An arrow marked on the valve body clearly indicates flow direction, facilitating your quick and accurate use","Reliable Quality: Made of highly sturdy aluminum alloy, the car fuel hose control valves can resist impacts without deforming or breaking. In addition, they feature resistance to corrosion and rust, providing you with reliable performance even when in prolonged contact with fuel","Package Contents: Each set includes 2 one-way check valves and 4 clamps, rated for a working pressure of 0.2 bar to 6 bar and a temperature from -22℉ to 266℉. We offer four valve port diameters: 0.24\" (6 mm), 0.31\" (8 mm), 0.39\" (10 mm), and 0.47\" (12 mm)—select the one that fits your needs","Scope of Application: These one-way check valves are suitable for connecting hoses that carry gasoline, diesel, engine oil, and water, but not methanol. They work reliably in fuel systems across various vehicles, including cars, motorcycles, boats, helicopters, and more"]