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This Radium Engineering adapter fitting converts a 6AN male thread to a 3/8" spring‑lock female connection and is finished in black anodize. Designed as a fabrication component, it lets builders interface AN‑type lines with spring‑lock female fittings in custom plumbing setups where those two standards need to be joined.
Radium Engineering 6AN Male to 3/8in Spring Lock Female Adapter Fitting
