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• Most commonly used in steel fittings, but some plastic and copper fittings will be threaded.
• Uses pipe dope or Teflon tape on the threads when joining to prevent leaks and corrosion.
• If the threads are on the interior, the fitting is female. If the threads are on the exterior, the fitting is male.
• IPS means Iron Pipe Size, and also refers to threaded pipe.
• MIP means Male Iron Pipe size. It refers to a male threading that will fit an IPS pipe.
• FIP means Female Iron Pipe size. It refers to a female threading that will fit an IPS pipe.