【High Quality Material】The check valve made of aluminum alloy is more suitable for use in automotive fuel systems ,and is not easy to corrode 【Elaborate design】The aluminum alloy fuel valve interface adopts pagoda pattern at both ends ,which can have a stronger combination and prevent leakage 【Principle Of Operation】Our one way valve can prevents fuel from siphoning back to the tank and holds it in the line 【Widely Used】Fuel valve is suitable for carburetor and low pressure fuel system ,suitable for gasoline ,diesel ,biological/vegetable oil ,paraffin/kerosene ,etc . 【Arrow Mark】 Arrow marked on valve ,showing fluid direction , easy for you to install, Manufacturer: Oumefar