ITEM NAME:crude oil engine Fuel Gasoline Check Valve Aluminum (12mm) A2G7 crude oil engine Fuel Gasoline Check Valve Aluminum (12mm) A2G7 Material: high quality aluminum Color: As shown Amount: 1 pc Size: 12mm Function: Prevents fuel from returning to the tank and holds it in line Mounting: Installing low-pressure feed systems and carburettor The package contains: 1 X fuel Check Valve Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.