Mueller Streamline a01539nl Tee C X C X Fpt 3/4 Inches X 3/4 Inches X 1/2 Inches

Product Description

The Mueller Streamline A01539NL is a lead-free forged brass alloy tee fitting designed for use in potable water supply systems and pressurized plumbing applications. This fitting connects two copper pipe runs using cup-style solder joints on both the run ends, while the branch outlet accepts a female pipe tapered thread connection in NPT format. The result is a versatile three-way fitting that allows plumbers and pipefitters to branch off a 3/4 inch copper main line and transition to a 1/2 inch threaded connection without additional adapters. The end configuration is C x C x FPT, meaning the first and second ports are 3/4 inch cup female solder ends and the third port is a 1/2 inch FPT NPT threaded outlet. This combination is commonly used when connecting copper distribution lines to threaded valves, drop-ear fittings, or other threaded plumbing components. Mueller Streamline has been a trusted name in copper and brass solder-joint fittings for over 80 years, and the A01539NL reflects that legacy of precision manufacturing and consistent quality. The fitting is constructed from lead-free forged brass alloy, making it suitable for above-ground potable water supply systems where lead-free compliance is required by code. It meets a comprehensive set of ASME standards including B16.15, B16.18, B16.22, B16.24, B16.50, and B1.20.1, giving contractors and inspectors confidence in its dimensional accuracy and pressure performance. At 0.22 pounds, this compact fitting is easy to handle during rough-in work. Plumbing contractors, mechanical contractors, and commercial pipefitters will find this fitting useful wherever a copper-to-threaded branch transition is needed on a 3/4 inch water line.

• Lead-free forged brass alloy construction suitable for potable water systems
• C x C x FPT configuration with 3/4 inch solder inlets and 1/2 inch NPT threaded outlet
• Meets ASME B16.15, B16.18, B16.22, B16.24, B16.50, and B1.20.1 standards

Product Highlights

The Mueller Streamline A01539NL tee delivers reliable lead-free performance in above-ground potable water supply systems, combining copper solder-joint inlets with an NPT threaded branch outlet for flexible installation in residential and commercial plumbing applications.

Product Information

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: A01539NL

Technical Specifications

• Weight: 0.22 pounds
• Material: Lead-Free Forged Brass Alloy
• End Type: C - Cup (Female Solder)
• End Size: 3/4 inches
• Second End Type: C - Cup (Female Solder)
• Second End Size: 3/4 inches
• Third End Type: FPT - Female Pipe Tapered Thread, NPT
• Third End Size: 1/2 inches
• Standards: ASME B16.15, ASME B16.18, ASME B16.22, ASME B16.24, ASME B16.50, ASME B1.20.1