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This HKS 4–6mm metal tee fitting provides a small, metal vacuum or fluid line junction for engine bay plumbing and hardware needs. As a simple OEM‑style replacement fitting, it’s intended for inline connections where a durable metal tee is preferred over plastic fittings, offering a straightforward option for routing 4–6mm hoses in service or repair applications.
HKS 4-6mm Metal Tee Fitting
