Set of 4 Diesel Non-Return Valves 6/8/10/12mm, Aluminum Alloy Fuel Valve with Arrow for Gasoline Diesel Car Boat Motorcycle

Function: Prevents fuel from being siphoned from the tank and trapped in the lines. Material: Made of aluminum alloy, rustproof, lightweight, and durable. Size: 6mm, 8mm, 10mm, 12mm. Available in various sizes to suit many applications. Compatibility: Compatible with gasoline, diesel, vegetable/organic oil, paraffin/kerosene oil, etc. Application: Suitable for carburetors and low-pressure fuel systems. Cars, ships, helicopters, motorcycles, etc.