Mueller Streamline COU114LF Bronze Union 1-1/4 in C X C

Product Description

The MUELLER STREAMLINE COU114LF is a 1-1/4 inch bronze union fitting with a copper-to-copper (C x C) sweat connection on both ends. Unions allow a section of copper pipe or a component to be removed and reinstalled without cutting the line, making them essential for service access points in water supply, hydronic heating, and mechanical systems. The lead-free bronze construction meets drinking water compliance requirements, making this fitting suitable for potable water applications. Plumbers and pipefitters install this union where future serviceability is a design requirement.

This union is used in residential and light commercial plumbing installations, including domestic hot and cold water supply lines, hydronic heating circuits, and radiant systems. It is well suited for any application where a sweat-connected, removable joint is needed at 1-1/4 inch pipe size. The C x C end connections accept standard 1-1/4 inch copper tubing and are soldered in place using conventional torch and solder techniques.

Key Features

• Lead-free bronze construction for potable water compliance
• Copper-to-copper (C x C) sweat connections on both ends
• 1-1/4 inch pipe size for medium-diameter water supply and hydronic lines
• Union design allows removal and reinstallation without cutting pipe
• Suitable for residential and light commercial plumbing systems

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-1/4 inch copper tubing systems using sweat (solder) connections in potable water and hydronic applications.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and fully drain the line before soldering to ensure a dry, clean joint. Use lead-free solder and flux rated for potable water service. The union nut must be fully tightened after both sweat ends are joined and cooled to complete the assembly.

Technical Specifications

• Connection Type: C x C (Sweat)
• Pipe Size: 1-1/4 inches
• Material: Bronze
• Lead-Free: Yes

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: COU114LF