Merit Brass C103A-08 Brass 45 Street Elbow 1/2 in Fnpt Mnpt

Product Description

The MERIT BRASS C103A-08 is a brass 45-degree street elbow designed for threaded pipe systems in plumbing and hydronic applications. It features a female NPT (FNPT) inlet and a male NPT (MNPT) outlet, allowing a direction change without requiring an additional coupling. Rated Class 125, this fitting is suited for low-to-medium pressure service in water, oil, and air systems. The 1/2 inch size covers one of the most common residential and light commercial pipe sizes. At 0.2 pounds, the fitting is compact and ready for tight installation spaces.

This fitting is used in residential and light commercial plumbing systems wherever a 45-degree offset is needed in a threaded pipe run. Common applications include water supply lines, compressed air distribution, and hydronic heating circuits. Plumbers and pipefitters install this part when routing pipe around obstructions or making angled transitions at valves, fixtures, or equipment connections. The street configuration — FNPT on one end, MNPT on the other — eliminates the need for a nipple in many layout scenarios, reducing joint count and potential leak points.

Key Features

• 45-degree street elbow geometry for angled direction changes in threaded pipe runs
• FNPT x MNPT end connections allow direct inline installation without an extra nipple
• Class 125 pressure rating suitable for water, oil, and air service
• 1/2 inch fitting size covers the most common residential and commercial pipe diameter
• Brass construction provides corrosion resistance in plumbing and hydronic systems

Compatibility

Designed as an OEM-style replacement or new-installation threaded brass fitting for 1/2 inch NPT pipe systems in residential and light commercial plumbing, hydronic heating, and compressed air applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with the applicable edition of the International Plumbing Code (IPC) or local jurisdiction requirements. Shut off and depressurize the system before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly; do not overtighten, as brass threads can be damaged by excessive force. Inspect the joint for leaks after restoring system pressure.