Mueller Streamline COT3 Copper Tee 3 Inches

Product Description

The MUELLER STREAMLINE COT3 is a 3-inch copper tee fitting used in plumbing, HVAC, and hydronic piping systems. This fitting allows a branch connection off a main run of copper pipe, creating a T-shaped junction. It is fabricated from copper, which resists corrosion and handles both hot and cold fluid applications. Licensed plumbers and HVAC technicians install this fitting in residential and commercial systems where reliable, leak-free branch connections are required.

The COT3 is suited for 3-inch copper pipe installations in domestic water supply, radiant heating, chilled water, and HVAC refrigerant-side piping where a branch takeoff is needed. Its all-copper construction makes it compatible with standard soldering and brazing joining methods used in professional trade work.

Key Features

• 3-inch nominal size for branch and run connections
• Copper construction provides corrosion resistance and long service life
• Compatible with standard soldering and brazing joining techniques
• Suitable for hot and cold water, hydronic, and HVAC piping applications

Compatibility

Designed as an OEM-style replacement and standard-use fitting for 3-inch copper pipe systems in residential and commercial plumbing and HVAC installations.

Installation Notes

Installation is performed by a licensed plumber or HVAC technician. Shut off and depressurize the system and drain all fluid before cutting into the line. Clean and flux all joint surfaces thoroughly before soldering or brazing to ensure a sound, leak-free connection. Work must comply with applicable local plumbing codes and the International Plumbing Code where adopted.

Technical Specifications

• Pipe Size: 3 inches
• Material: Copper
• Fitting Type: Tee

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: COT3