Merit Brass C110-06 Brass Pipe Cross 3/8 in Fnpt Class 125

Product Description

The MERIT BRASS C110-06 is a Class 125 brass pipe cross fitting designed for four-way pipe connections in plumbing, HVAC, and industrial piping systems. All four ports feature female national pipe taper (FNPT) threads, allowing the fitting to accept standard male NPT threaded pipe from each direction. At 3/8 inch, this cross fits smaller-diameter branch and distribution lines where a single fitting must split or combine flow in two axes. Weighing 0.25 pounds, it is compact and well-suited for tight installation spaces. Licensed plumbers and pipefitters are the primary installers for this type of fitting in both residential and light commercial applications.

This cross fitting is used wherever a four-way branch point is needed in a 3/8 inch NPT threaded piping run. Typical applications include water distribution manifolds, compressed air distribution systems, low-pressure gas branch lines, and hydronic heating circuits. Its Class 125 pressure rating makes it appropriate for low- to moderate-pressure service. The all-FNPT configuration means all connected pipe or nipples must have male NPT threads, making it straightforward to install with standard pipe stock and fittings.

Key Features

• Four-way cross configuration with all FNPT end connections for versatile branch plumbing
• 3/8 inch fitting size suits smaller-diameter distribution and branch lines
• Class 125 pressure rating appropriate for low- to moderate-pressure water, air, and compatible fluid service
• Brass construction provides corrosion resistance and durability in wet and humid environments
• Compact and lightweight at 0.25 pounds for use in space-constrained installations

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/8 inch male NPT threaded pipe in Class 125 plumbing, HVAC, and compressed air piping systems.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC and local plumbing codes. Shut off and depressurize the supply line completely before removing or installing any threaded fittings. Apply an approved thread sealant tape or compound to the male NPT threads of the connecting pipe before tightening. Do not overtighten brass threaded fittings, as the material can crack under excessive torque.