The 3 Steel Inv. Flare Plug Str. by Fittings Unlimited Inc is a robust fitting designed for sealing applications in hydraulic systems. This 3 size flare plug is constructed from high-quality steel, providing excellent resistance to wear and corrosion. Its design ensures a tight seal, preventing leaks and maintaining system pressure. Compliant with industry standards, this flare plug is suitable for various applications, including automotive and industrial uses. With its reliable performance and durability, this fitting is an essential component for any hydraulic system.