Merit Brass 2108-1800 Brass Pipe Nipple 18in 1/2in Npt

Product Description

The MERIT BRASS 2108-1800 is a red brass pipe nipple designed for threaded pipe assemblies in plumbing, HVAC, gas distribution, and industrial piping systems. It is threaded on both ends with 1/2 inch NPT threads and measures 18 inches overall length, making it suitable for close-quarter and extended-run connections where a standard short nipple is insufficient. Constructed from red brass, this nipple offers reliable corrosion resistance in both water and low-pressure gas service. It meets OSHA standards and is sized to 1/2 inch iron pipe size. Licensed plumbers and pipefitters are the typical installers for this type of fitting.

This nipple is used in residential and light commercial plumbing, hydronic heating, compressed air, and low-pressure gas piping applications. The 1/2 inch NPT threading is a standard configuration found in a wide range of piping systems, making this nipple a common stock item for service vans and mechanical rooms. Its 18 inch length suits runs requiring more distance between fittings or valves than a hex or close nipple can provide.

Key Features

• Red brass construction for corrosion resistance in water and gas service
• Threaded on both ends with 1/2 inch NPT threads for standard fitment
• 18 inch overall length for extended-run connections
• 1/2 inch iron pipe size (IPS) for compatibility with standard pipe fittings
• Meets OSHA standards

Compatibility

Designed as a standard replacement or new-install nipple for 1/2 inch NPT threaded pipe systems in plumbing, HVAC, and light industrial piping applications.

Installation Notes

Installation is performed by licensed plumbers or pipefitters. Shut off and depressurize the supply line before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to NPT threads before assembly and tighten with pipe wrenches to avoid cross-threading or over-torquing the brass. Local plumbing codes under the IPC or applicable mechanical codes govern approved materials and installation methods for the intended service.