
【Material】Made of aluminum alloy, lightweight and durable. 【Function】Prevents fuel from siphoning back into the tank and retains it in the line. 【Fitment】Suitable for carburetor and low pressure fuel systems. For use with Gasoline, Diesel, Vegetable/Bio Oil, Paraffin/Kerosene Oil, etc. 【Size】6mm. 8mm. 10mm. 12mm. A variety of sizes for a variety of occasions. 【Package Includes】4 aluminum fuel return check valves. 1 x 6mm. 1 x 8mm. 1 x 10mm. 1 x 12mm.