The 3-903 Boss O-Ring from Pressure Connections Corp. is designed for reliable sealing in hydraulic applications. Made from durable Buna-N material, this O-ring ensures excellent resistance to oil and other fluids, making it ideal for various industrial uses. With precise dimensions tailored for Boss connections, it guarantees a secure fit and optimal performance under pressure. This O-ring is compliant with industry standards, ensuring compatibility with a wide range of systems. Perfect for maintenance and repair tasks, it is a must-have for professionals in the field.