Dynamic Seal Assembly, SLPRO 90K (20479499) is a high-pressure sealing component engineered for ultra-high-pressure waterjet systems. Designed for use in SLPRO PRO I and PRO II pump intensifier assemblies operating at up to 90,000 psi (6,200 bar), this dynamic seal provides precision sealing between the ceramic plunger and high-pressure cylinder to maintain leak-free operation under extreme pressure cycles. Built for long service life and reliable performance in demanding industrial cutting environments, the assembly supports consistent hydraulic-to-water sealing and helps extend the operating life of intensifier components.