A must have safety item, Required by most sanctioning bodies.
Jaz-Speedway Flapper Only
tAluminum Fuel Cell Vent Overflow Check Flapper Valve CRA ASPHALT Richardson
JAZ 277-008-06 8-Gallon Pro Sport Fuel Cell w/Flapper
RCI 22 Gallon Steel Can Fuel Cell, Bladder/Flapper, Red
JAZ Products 315-105-03 Roll-Over Flapper Valve Kit
JAZ 277-012-NF1 12-Gallon Pro Sport Fuel Cell w/Flapper - Black
