

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The BMI USA 4125 is a lead-free brass threaded nipple designed for use in plumbing and fluid-handling systems where potable water safety compliance is required. At 2.5 inches in length with a 1/8-inch NPT thread, this close-tolerance fitting serves as a short pipe extension or connection point between threaded components. Its brass construction provides corrosion resistance and reliable sealing in both hot and cold water applications. The lead-free designation meets federal and state requirements for use in systems carrying drinking water. Weighing just 0.05 pounds, it is a compact, lightweight component suited for tight spaces and high-volume service work.
This nipple is a standard fitting used in residential and light commercial plumbing systems. The 1/8-inch NPT size is common in low-flow or instrumentation connections, boiler systems, pressure gauge ports, and similar small-diameter threaded applications. Licensed plumbers and HVAC technicians frequently use fittings in this size range for gauge taps, drain connections, and ancillary piping on heating equipment. The lead-free brass construction makes it appropriate for potable water installations wherever applicable codes apply.
Designed as an OEM-style replacement or standard-stock fitting for residential and commercial plumbing systems using 1/8-inch NPT threaded connections.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the water supply and relieve system pressure before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to male threads before assembly. Do not overtighten brass fittings, as the material can crack under excessive torque.
Thanks for subscribing!
This email has been registered!