Mueller Industries W 04002 Wrot Copper Tee Fitting

Product Description

The MUELLER INDUSTRIES W 04002 is a wrot copper reducing tee fitting designed for sweat-solder copper piping systems. It connects three copper pipe runs in a tee configuration with a 3/8 inch by 3/8 inch run and a 1/4 inch branch outlet. All three ends are C-type (cup) connections joined by solder, making this a standard sweat-fit component. Plumbers and HVAC technicians install this fitting in refrigeration lines, water distribution, and instrumentation tubing where a reliable, leak-free branch connection is required. Outside diameters measure 1/2 inch on the run ends and 3/8 inch on the branch end.

This fitting is suited for residential and light commercial plumbing and HVAC applications where small-diameter copper branch connections are needed. Typical installations include refrigerant line sets, domestic water supply lines, and pneumatic or instrumentation copper piping. The solder-joint design is compatible with standard 95/5 or 50/50 solder and lead-free solder compounds where potable water code compliance is required.

Key Features

• Wrot copper construction for consistent grain structure and superior pressure integrity at solder joints
• Reducing tee configuration: 3/8 x 3/8 inch run with 1/4 inch branch outlet
• C x C x C cup ends accept standard sweat-solder assembly — no threading or compression required
• Meets ASME B16.22 and B16.18 dimensional standards for wrought and cast copper fittings
• NSF 61G listed, suitable for potable water contact where applicable
• Compliant with ASME B16.15, B16.24, B16.50, and ASME B1.20.1

Compatibility

Designed as an OEM-style replacement or new-installation fitting for small-diameter copper tube systems using standard sweat-solder (C-type) connections in plumbing and HVAC applications.

Installation Notes

This fitting is installed by licensed plumbers or HVAC technicians using a propane or MAP gas torch, pipe cutter, emery cloth, and lead-free solder with flux. Shut off and drain the water or refrigerant supply before cutting into an existing line. Clean all mating surfaces thoroughly before fluxing and sweating the joint. Refer to applicable local plumbing code, IFGC, or IPC requirements for solder alloy selection, particularly in potable water systems.