Merit Brass XB101-20 Brass Pipe Fitting 1-1/4 in Class 125

Product Description

The MERIT BRASS XB101-20 is a Class 125 brass pipe fitting with female British Standard Pipe Taper (FBSPT) connections on both ends. It is sized at 1-1/4 inches and is designed for use in low-pressure piping systems where reliable threaded connections are required. The brass construction offers corrosion resistance and durability in both liquid and gas service applications. This fitting is installed by licensed plumbers and pipefitters during new construction, retrofit, or repair work on commercial and residential piping systems.

This fitting is suited for residential and light commercial plumbing, HVAC hydronic systems, and general-purpose pipe assemblies where a 1-1/4 inch female-to-female threaded connection is needed. Its Class 125 pressure rating makes it appropriate for moderate-pressure water and compatible fluid service. The FBSPT x FBSPT configuration allows it to couple two male-threaded pipe ends within a run or transition point in a piping system.

Key Features

• 1-1/4 inch fitting size for standard piping applications
• FBSPT x FBSPT end connections on both sides
• Class 125 pressure rating suitable for moderate-pressure service
• Brass construction provides corrosion resistance and long service life
• Compact, single-piece design with no moving parts

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-1/4 inch threaded pipe systems using FBSPT-compatible male-threaded pipe ends in Class 125-rated service.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with local plumbing codes and IPC guidelines. Shut off and depressurize the piping system fully before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to male threads before assembly. Do not overtighten, as brass fittings can crack under excessive torque.