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The Merit Brass KP411-64 is a four-inch nominal pipe coupling designed for use in plumbing and HVAC systems. It features a female National Pipe Taper (FNPT) end style suitable for connecting different lengths of piping or for transitioning to other fittings. This coupling is made from 304/304L stainless steel, known for its durability and resistance to corrosion.
This product is designed for industrial applications that require reliable connection methods. It meets industry standards for pressure and material durability.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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