The 21.3 MM ID X 2.4 MM CS Dupont Kalrez 4079 O-Ring is designed for superior sealing in challenging environments. With a 21.3 mm inner diameter and a cross-section of 2.4 mm, this O-ring is perfect for applications requiring high chemical resistance and thermal stability. Constructed from Kalrez 4079 material, it provides exceptional durability and performance in extreme temperatures and aggressive chemicals. This O-ring is ideal for use in industries such as pharmaceuticals, chemical processing, and oil and gas, meeting rigorous industry standards.