The 3.75 x 4.25 x 0.5 inch NBR Loaded Symmetrical U-Cup from Freudenberg-NOK, model 25003750500B-2093, is engineered for high-performance sealing in hydraulic and pneumatic systems. Made from durable NBR material, this U-Cup provides excellent resistance to wear and various fluids, ensuring reliable operation in demanding environments. Its symmetrical design allows for easy installation and effective sealing, making it suitable for a wide range of applications. This U-Cup meets industry standards, providing peace of mind for users seeking dependable sealing solutions.