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Radium Engineering 3/8in NPT plug is a zinc-plated steel threaded plug for sealing 3/8" NPT ports. The zinc plating provides corrosion resistance suitable for many plumbing and accessory applications. It offers a durable threaded closure for unused ports in fuel, oil, or coolant systems where a robust steel plug is preferred for mechanical strength and threaded sealing.
Radium Engineering 3/8in NPT Plug
