Aeromotive In-Line Full Flow Check Valve (Male -10 AN Inlet / Female -10 AN outlet)High flow one way check valves designed to prevent back flow with minimal pressure drop. Ideal to prevent drain back after the fuel pump is turned off, or when dual pumps are used and both pumps may not run simultaneously. CNC machined billet aluminum and Type II bright dip black anodized finish. AN 10 male inlet, ORB 10 female outlet connections. Ideal configuration for easy installation into filter or fuel pump outlet port, no need for additional