The HAEWON POS.149 (125*280) Cylinder Repair Kit is a premium, comprehensive seal kit designed for the professional refurbishment of pneumatic and hydraulic cylinders. Engineered to exact manufacturer specifications, this kit provides a reliable solution to prevent fluid leaks, restore system pressure, and extend the operational lifespan of your industrial equipment. Specifically configured for cylinders with a 125 mm bore diameter and a 280 mm stroke length, the package includes all necessary replacement components. Each kit contains a high-quality piston diaphragm seal, durable rod seals, precision O-rings, and robust white plastic wear and back-up rings to ensure optimal sealing performance under demanding conditions.