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The Stainless Works collector filler diamond is a 1-3/4" diameter CNC laser-cut insert crafted from 304 stainless steel for corrosion resistance. Used in 4:1 header assemblies, it helps square primary tubes and reduce leakage at the collector joint. Precision-cut for consistent results, these filler diamonds are made in the USA to support accurate header fabrication and leak-free joins.
Stainless Works 1.75in Dia Collector Diamond
