The AS568-371 SIMRIZ SZ134 is a robust sealing solution with an inner diameter of 8-1/2" and an outer diameter of 8-7/8", featuring a thickness of 3/16". This product from Freudenberg-NOK is constructed from high-quality SIMRIZ material, known for its durability and resistance to harsh chemicals and high temperatures. It complies with industry standards, ensuring compatibility with various hydraulic and pneumatic applications. The SZ134 seal provides a reliable barrier, enhancing the performance and longevity of your equipment.