1/2 Female x Male 500 Pounds per Square Inch Check with VitonThe 1 2 Female x Male 500 Pounds per Square Inch Check with Viton is a one way valve designed to allow fluid or gas to flow in a single direction while preventing backflow. It is rated for 500 PSI and features a Viton (FKM) seal, which provides superior chemical resistance, heat resistance, and durability. This valve is commonly used in hydraulic, pneumatic, fuel, and gas systems where reliable backflow prevention is needed. Specification Details TYPE