Description
Replacement 1/4-20 serrated hex nut for Pentair/American Products/PacFab filter and valve assemblies, including Star Polymeric, Star D.E., FNS, and Meteor aboveground filters. It bites into mating surfaces to resist loosening on clamp bands or valve mounts, keeping hardware tight under vibration. Brass-plated stainless steel for corrosion resistance; OEM.





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