Get your semi truck Ready for the Road Ahead with an efficient control of the vehicle's fuel, air, or water flow, with the Bendix SC-3 - 1/4" Male - Female Brass Single Check Valve. This replacement valve allows fluids to flow in a single direction, preventing undesirable backflow towards a pump or compressor. Manufactured with a straight body type for enhanced durability and reliability. FleetPride is your First Click in Heavy Duty .