The SEALFAST 1/4" x 3/8" Male Boss O-Ring Rigid fitting is engineered for secure connections in hydraulic and pneumatic systems. This fitting features a robust design with a male boss connection, ensuring a tight seal with O-ring compatibility. Constructed from high-quality materials, it offers excellent resistance to wear and corrosion, making it suitable for various industrial applications. Its compact size allows for easy installation in tight spaces, while maintaining high performance under pressure. Ideal for use in fluid transfer systems and machinery.