The DUPONT KALREZ 4079 O-Ring features a 399.3 mm inner diameter and a 5.7 mm cross-section, making it ideal for high-performance sealing applications. This O-Ring is constructed from Kalrez, a high-performance elastomer known for its excellent chemical resistance and thermal stability. It is suitable for use in extreme environments, ensuring reliable sealing in various industrial applications. The O-Ring meets AS568 standards, ensuring compatibility with a wide range of systems. Its robust design allows it to withstand high pressures and temperatures, making it a preferred choice for demanding applications.