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A gasket like this is useful because it helps create a proper seal between the skimmer faceplate and related wall components
Supports internal filter alignment and assembly stability
This replacement is especially useful when the original sensor well is corroded
That keeps the repair focused and can extend the life of the larger assembly
Pentair TR100/TR140 Hub Replacement (154453Z) gshop A gasket like this isThis genuine Pentair Pool Products hub replacement, part 154453Z, is used in compatible TR100 and TR140 sand filter internal assemblies. The hub helps organize and distribute the lateral connections that support proper water movement through the sand bed. When a hub is cracked or weakened, filtration can suffer and sand may return to the pool through damaged internal pathways. Replace it during a sand change or internal rebuild to restore the original
