Vibrant Performance rollover valves are available in sizes 6AN, 8AN, 10AN and 12AN female to male. These aluminum fittings have a black anodize finish safe for use with oil, coolant and fuel including E85. Sold individually, price is for one fitting.What is a Rollover Valve?A Rollover Valve is designed to relieve fuel tank pressure and prevent fuel flow through the fuel tank vent hoses in the event of vehicle rollover. If the vehicle should roll over, the valve is inverted and the plunger is forced against the guide plate, preventing fuel from flowing through the vent tube.Purchase Includes:(1) FittingSpecs:• 6061 Aluminum• Black Anodize Part Number: Male -AN to Female -AN Size: 16716 -6AN 16718 -8AN 16720 -10AN 16722 -12AN See more Vibrant Performance Products