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The MUELLER INDUSTRIES W 04000 is a wrot copper pipe tee designed for solder-joint connections in copper tubing systems. Configured as C x C x C, it accepts three sweat connections at equal ends and is sized for 1/4 inch fittings with an outside diameter of 3/8 inches. Wrot copper construction provides a dense, wrought grain structure suited for pressure service in refrigeration, HVAC, and plumbing applications. Installation is performed by licensed plumbers, HVAC technicians, and refrigeration mechanics using standard soldering tools and procedures.
This tee is used in residential and light commercial systems where 1/4 inch copper tubing must be branched or split. Common applications include refrigerant line sets, compressed air distribution, and small-diameter plumbing supply lines. The solder-joint end connection style makes it compatible with standard sweat fitting practices used throughout the trade. Its compact size suits tight equipment cabinets, coil connections, and service valve manifolds.
Designed as an OEM-style replacement or new-installation fitting for 1/4 inch copper tubing systems using sweat connections in residential and light commercial HVAC, refrigeration, and plumbing applications.
Installation should be performed by a licensed plumber or HVAC technician following applicable local plumbing codes and IFGC guidelines. Shut off and depressurize the system and purge all refrigerant or fluid before soldering. Clean all mating surfaces with appropriate flux and use lead-free solder where potable water contact is possible per NSF 61G requirements. Allow the joint to cool fully before restoring system pressure.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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