AESSEAL B07S Mechanical Seals. Crafted for top performance, this OEM-type aftermarket mechanical seal features a robust silicon carbide / silicon carbide / Viton construction, designed to withstand the rigorous demands of your hydraulic and pneumatic systems. Ideal for maintenance professionals and original equipment manufacturers, the B07S offers reliable sealing solutions for pumps and mixers. Its high-quality materials ensure longevity and efficiency, preventing leakage and ensuring your equipment operates at its optimal level. Keep your systems running smoothly with this top-tier mechanical seal.