Brand: Fuel Safe Fuel Cells
This vent fitting mounts in a 9/16" hole in the fill plate of your fuel cell. 6AN male fitting allows easy hookup of a -6 AN or 3/8" rubber vent line. Includes mounting nut and sealing washer. The valve is not spring-loaded. It depends on gravity to close the valve and stops the flow of fuel in the event of a rollover.