Mueller Industries 15605 Wrot Copper Pipe Adapter 3/8x1/4 Cxm

Product Description

The MUELLER INDUSTRIES 15605 is a wrot copper pipe adapter designed to connect a 3/8-inch copper sweat (C) end to a 1/4-inch male threaded (M) end. Wrot copper construction provides reliable, pressure-rated performance in plumbing and HVAC refrigerant line applications. The sweat end accepts a standard soldered joint, while the male threaded end connects to a female-threaded fitting or valve. This adapter is commonly installed by licensed plumbers and HVAC technicians when reducing or transitioning between copper tubing sizes at equipment connections, valves, or gauges.

This adapter is suited for residential and light commercial plumbing and refrigeration piping systems where a copper-to-thread transition is required. Typical applications include connecting copper supply lines to threaded valves, gauge ports, or equipment service ports. The compact form factor makes it practical in tight spaces common to HVAC equipment cabinets and plumbing rough-in locations. Each package contains 5 fittings.

Key Features

• Wrot copper construction for strength and corrosion resistance in plumbing and HVAC service
• 3/8-inch sweat (C) inlet to 1/4-inch male thread (M) outlet configuration
• Outside diameter measures 1/2 inch on the sweat end and 1/4 inch on the threaded end
• Soldered sweat connection on the C end ensures a leak-free, pressure-rated joint
• Packaged in quantities of 5 per unit for jobsite efficiency

Compatibility

Designed as an OEM-style wrot copper adapter for use in standard copper sweat and male-threaded piping assemblies in residential and commercial plumbing or HVAC refrigerant line installations.

Installation Notes

Installation of the sweat end requires a licensed plumber or HVAC technician using standard soldering tools, flux, and lead-free solder per applicable plumbing codes. Shut off and depressurize the line before cutting or joining. Apply thread sealant or PTFE tape to the male threads before connecting to a female-threaded fitting. Follow local code requirements, including IPC or applicable state plumbing codes, for material and solder specifications.