Mueller Streamline w40358 Reducing Tee C X C X C 3/8 X 1/4 X 1/8 Inches Wrot Copper Solder Joint Fitting

Product Description

The Mueller Streamline W40358 is a wrot copper reducing tee designed for solder-joint copper piping systems. It features a C x C x C end configuration, meaning all three openings accept cup-style female solder connections. The run measures 3/8 inches, the second run measures 1/4 inches, and the branch outlet measures 1/8 inches. This reducing tee allows a plumber or pipefitter to branch off a main copper line and step down to smaller pipe sizes in a single fitting, eliminating the need for additional reducers and keeping the system compact and efficient. The fitting is manufactured from wrot copper, which is formed by working the metal rather than casting it. Wrot copper fittings are denser, stronger, and more uniform than cast alternatives, making them well suited for pressurized potable water supply systems. To install, the pipe ends are cleaned, fluxed, inserted into the solder cups, and sweated with a torch using lead-free solder. The result is a permanent, leak-resistant joint that meets the demands of residential and commercial plumbing systems. Mueller Streamline has been producing copper solder-joint fittings for over 80 years and is one of the most recognized names among licensed plumbers and mechanical contractors. This fitting is approved for above-ground potable water supply applications and meets NSF 61G requirements for contact with drinking water. It also conforms to multiple ASME standards covering copper and bronze fittings and threaded pipe joints. At 0.04 pounds, the W40358 is a lightweight, small-diameter fitting commonly used in tight spaces such as appliance supply lines, refrigeration lines, ice maker connections, and specialty plumbing runs where reducing branch tees are required.

• Wrot copper construction provides superior strength and density compared to cast fittings
• C x C x C solder-cup ends on all three ports for reliable sweat-soldered connections
• NSF 61G listed and approved for above-ground potable water supply systems

Product Highlights

The Mueller Streamline W40358 reducing tee delivers a durable, code-compliant solder-joint solution for branching and stepping down copper pipe sizes in potable water systems. Its wrot copper body and multi-standard compliance make it a dependable choice for professional plumbing installations.

Product Information

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: W40358

Technical Specifications

• Material: Wrot Copper
• Weight: 0.04 pounds
• End Configuration: C x C x C (Cup / Female Solder)
• End Size (Run 1): 3/8 inches
• End Size (Run 2): 1/4 inches
• End Size (Branch): 1/8 inches
• Standards: NSF 61G, ASME B16.15, ASME B16.18, ASME B16.22, ASME B16.24, ASME B16.50, ASME B1.20.1