Nibco B066800 Cast Copper 90 Drop Ear Elbow 3/8x1/2 in

Product Description

The NIBCO B066800 is a cast copper 90-degree drop ear elbow designed for use in residential and commercial pressure piping systems. This fitting connects a 3/8-inch copper tube (sweat end) to a 1/2-inch female threaded port, allowing the line to terminate flush against a wall or framing member. The drop ear configuration provides a threaded mounting point so the fitting can be secured directly to a stud or backing plate before the fixture supply is connected. It is installed by licensed plumbers during rough-in work for fixture supplies such as shower arms, tub spouts, and wall-mount faucets.

This fitting is suited for residential and light commercial plumbing rough-in applications where a copper supply line must be anchored to framing and transitioned to a female-threaded outlet. The 90-degree turn and integral mounting ear make it the standard choice for shower arm and wall-mount fixture rough-ins. Fabricated from cast copper and rated as a pressure fitting, it is appropriate for domestic hot and cold water distribution systems operating under standard residential line pressures.

Key Features

• Cast copper construction provides durability and corrosion resistance in water distribution service
• 90-degree drop ear design allows the fitting to be fastened to wall framing before final connection
• 3/8-inch sweat inlet (C) connects directly to copper tubing with standard solder or brazing methods
• 1/2-inch female threaded outlet (F) accepts standard NPT fixture supply connections
• Pressure fitting rating suitable for domestic hot and cold water supply lines
• Meets ASTM B584 and ISO standards

Compatibility

Designed as an OEM-style replacement or new-installation pressure fitting for copper residential and commercial plumbing systems requiring a 3/8-inch C x 1/2-inch F 90-degree drop ear elbow connection.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and depressurize the line before cutting or soldering. The sweat end requires thorough cleaning, flux application, and proper soldering technique to achieve a leak-free joint. Secure the mounting ear to solid backing before torquing the threaded fixture supply connection.