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The MERIT BRASS XNL116-16 is a 1-inch nominal brass pipe cap with a female NPT (FNPT) end style, rated at 125 lb. Designed to close off the end of a threaded pipe run, this cap provides a secure, leak-resistant seal in plumbing, gas distribution, and mechanical piping systems. The rough brass finish suits installations where appearance is secondary to function. Plumbers and pipefitters install this type of fitting during system testing, winterization, or permanent line termination across residential and light commercial applications.
This pipe cap fits standard 1-inch NPT threaded pipe in a wide range of piping configurations. The 125 lb pressure rating makes it suitable for low-to-medium pressure water, air, and compatible gas service lines. The imported brass construction delivers reliable thread engagement and corrosion resistance in typical wet or dry piping environments where brass fittings are specified.
Designed as an OEM-style replacement and standard fitting for 1-inch NPT threaded pipe systems in plumbing and mechanical piping applications.
Installation is performed by licensed plumbers or qualified pipefitters. Shut off and depressurize the line fully before threading on the cap. Apply an appropriate thread sealant or PTFE tape to the male pipe threads per IPC and local code requirements. Do not overtighten, as excess torque can crack brass fittings or damage threads.
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