6/8/10/12mm Fuel Non Return One Way Check Valve Fuel Line Check Valve Petrol Diesel Water Non Return One Way Check Valves
https://www.vogueparade.com/shopping/EN/200282142/1/1005003631687857/681012mm-fuel-non-return-one-way-check-valve-fuel-line-check-valve-petrol-diesel-water-non-return-one-way-check-valves//