This KSB Lip Seal, identified by reference number 02139837 and part designation 421, is a critical component for pump maintenance. It is designed to provide effective sealing within KSB pump systems, preventing fluid leakage and ensuring operational efficiency. The lip seal’s design is optimized to withstand the demanding conditions typically found in pump applications. Engineered for reliability, this seal plays a vital role in maintaining the integrity of pump systems. Its precise dimensions and material composition are crucial for its function. Proper installation of this genuine KSB part is essential for achieving maximum lifespan and performance. Ideal for replacement or as a spare part, this lip seal is suitable for various KSB pump models requiring this specific component. It is a key element for maintaining the operational integrity and longevity of your KSB pumping equipment. Contact us to purchase this essential pump sealing component.