Merit Brass NLBS115-1208 Brass Pipe Bushing 3/4x1/2 Mnpt Fnpt

Product Description

The MERIT BRASS NLBS115-1208 is a lead-free brass pipe bushing designed to reduce a 3/4-inch male NPT connection down to a 1/2-inch female NPT port. It is used to transition between two different pipe sizes within a threaded piping system without the need for additional fittings. Rated at 125 psi and meeting Class 125 requirements, this bushing is suited for low- to medium-pressure plumbing, HVAC, and general fluid-handling applications. Licensed plumbers and pipefitters install this type of fitting as part of new construction, retrofit, or repair work on threaded pipe assemblies.

This bushing fits into residential and light commercial piping systems where a threaded size reduction is required. Common scenarios include connecting a 3/4-inch supply line to a 1/2-inch valve, fixture, or equipment port. The MNPT x FNPT end configuration allows it to thread directly into standard NPT fittings and equipment ports without adapters. Its lead-free construction makes it appropriate for potable water service where local codes mandate lead-free materials.

Key Features

• Lead-free brass construction suitable for potable water applications
• 3/4-inch MNPT x 1/2-inch FNPT end connections for direct size reduction
• Class 125 pressure rating at 125 psi
• Standard NPT thread form for compatibility with common threaded pipe systems
• Compact form factor — packaged dimensions of 1 x 1 x 1 inch, weight 0.05 pounds

Compatibility

Designed as an OEM-style replacement or new-install fitting for standard NPT threaded pipe systems requiring a 3/4-inch male to 1/2-inch female bushing reduction in Class 125 service.

Installation Notes

Installation is performed by a licensed plumber or qualified pipefitter. Shut off the water supply and depressurize the line before installing or removing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly; do not over-tighten, as brass threads can be damaged by excess torque. Verify that the installation meets applicable local plumbing codes, including lead-free requirements under the Safe Drinking Water Act where potable water service is involved.