Check valve -8 aluminum. This valve allows the fuel to be delivered or bled off when the pump pressure reaches the set pressure level in the check valve.
Check valve is made from billet alum. bar stock, wrench hex is .875", both sides are -8 37 degree flare with the end of the check valve having 7/16-20 threads to install a bypass pill into for fuel volume control if the racer chooses.
Housing is laser etched with flow directions and outer housing has been trimmed to give the check valve a nice stream-lined look and weight savings.
Please specify spring pressure when ordering and if you are not sure let RBS help you.