Merit Brass NLBS115-0402 Brass Pipe Bushing 1/4x1/8

Product Description

The MERIT BRASS NLBS115-0402 is a lead-free brass pipe bushing designed to reduce a 1/4-inch male NPT thread down to a 1/8-inch female NPT thread. It is a Class 125 fitting rated for 125 psi service pressure. This type of bushing is a standard component in threaded pipe assemblies across plumbing, HVAC, and compressed-air systems. Plumbers and pipefitters install it wherever a reduction between two threaded ports is needed without adding pipe length. The all-brass construction resists corrosion and meets lead-free requirements for potable water applications.

This bushing fits into residential and light commercial piping systems that use standard NPT threaded connections. Common install scenarios include connecting a 1/8-inch NPT instrument port or valve body to a 1/4-inch NPT supply line, reducing manifold ports, or adapting gauges and sensors in HVAC and plumbing distribution systems. Its compact form factor makes it suitable for tight spaces where a hex bushing or coupling would not fit.

Key Features

• Lead-free brass construction — compliant for potable water service
• 1/4-inch MNPT x 1/8-inch FNPT threaded reduction
• Class 125 rated at 125 psi working pressure
• Standard NPT threads for compatibility with common threaded pipe fittings
• Corrosion-resistant brass material suited for water, air, and light oil service

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard NPT threaded pipe assemblies in plumbing, HVAC, and light industrial systems requiring a 1/4-inch to 1/8-inch threaded reduction.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following IPC and applicable local plumbing codes. Shut off and depressurize the supply line before removing or installing any threaded fitting. Apply thread sealant tape or pipe dope rated for the service fluid to the male threads before assembly. Do not overtighten — use a properly sized pipe wrench and stop when the joint is snug and leak-free.