Hayward Star-Clear C751/C900/C1200 Lock Nut (CX900G)

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This lock nut is a service replacement for compatible Hayward Star-Clear C751, C900, and C1200 cartridge filter assemblies. It helps secure filter components so the internal struct ure remains properly assembled during filtration and maintenance.Lock nuts can wear, strip, or become difficult to reuse after repeated filter cleanings. Having the correct replacement on hand helps make cartridge filter service smoother and reduces the risk of makeshift repairs. Lock nut for select Hayward Star-Clear filters Fits compatible C751, C900, and C1200 assemblies Helps secure internal filter components Useful for maintenance, rebuilds, and worn hardware replacement Genuine Hayward part CX900G Show more