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Retaining Nut, Inline Filter, 3/8", A252, CJ400988

The Retaining Nut Inline Filter 3/8" (A252 / CJ400988) is a critical fastening component designed for high-pressure waterjet inline filter assemblies. It secures and locks the internal filter components in place, ensuring proper sealing and structural integrity under extreme operating pressures. Engineered for precision and durability, this retaining nut is manufactured to withstand ultra-high pressure environments while maintaining reliable performance. It is fully compatible with 3/8" inline filter assemblies, including systems using components such as CJ200988 filter assemblies, CJ300988 filter bodies, and SKJA266 filter elements. By maintaining correct compression and alignment of the filter assembly, this component plays a vital role in preventing leaks and ensuring consistent filtration. It helps protect high-pressure pumps, seals, and cutting heads from contamination—reducing downtime and extending equipment lifespan.