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The BMI USA 6401 is a 1/8-inch lead-free brass threaded tee fitting designed for use in plumbing and mechanical piping systems. It provides a three-way branch connection in a compact form, splitting or combining flow at a single junction point. Constructed from lead-free brass, it meets modern potable-water compliance requirements. At 0.07 pounds, it is a lightweight component suited for tight spaces. Licensed plumbers and pipefitters install this type of fitting during new construction, retrofit work, and repair applications across residential and light commercial systems.
This tee fitting is appropriate for use in small-diameter threaded pipe assemblies where a branch connection is needed. The 1/8-inch size makes it a common choice for low-flow lines, instrument ports, pressure tap connections, and pilot lines in HVAC and plumbing systems. Its threaded design allows for straightforward hand-start installation followed by wrench tightening with thread sealant or PTFE tape applied to the male threads.
Designed as an OEM-style threaded tee fitting for use in 1/8-inch pipe thread applications in residential and light commercial plumbing and HVAC systems.
Installation should be performed by a licensed plumber or qualified mechanical contractor. Shut off the water supply and relieve system pressure before removing or installing any threaded fitting. Apply PTFE tape or an approved thread sealant to all male threads before assembly, and tighten with an appropriately sized pipe wrench to avoid over-torquing the brass body. Follow all applicable local plumbing codes and IPC guidelines for threaded pipe connections.
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