The AS568-464 17 1/2" ID x 18" OD x 1/4" SIMRIZ SZ484 O-ring by Freudenberg-NOK is designed for reliable sealing in industrial applications. Constructed from high-performance SIMRIZ material, this O-ring offers excellent resistance to chemicals and high temperatures. With an inner diameter of 17.5 inches and an outer diameter of 18 inches, it meets AS568 specifications, ensuring compatibility with various systems. The 1/4 inch thickness provides a robust seal, preventing leaks and maintaining system efficiency. This product adheres to industry standards for quality and reliability.