Mueller Industries W 01001 Copper Coupling C X C

Product Description

The MUELLER INDUSTRIES W 01001 is a wrot copper pipe coupling designed for sweat-solder connections in copper piping systems. It uses a C x C (copper-to-copper) end connection, joining two lengths of copper tubing with a clean, leak-tight solder joint. With an outside diameter of 3/16 inch, this coupling is sized for small-diameter copper runs commonly found in HVAC refrigerant lines, medical gas systems, and low-pressure plumbing applications. The wrot copper construction ensures consistent wall thickness, good flow characteristics, and reliable solderability. Licensed plumbers and HVAC technicians are the primary installers of this fitting type.

This coupling is suited for residential and light commercial installations where small-bore copper tubing is used. Typical applications include instrumentation tubing, capillary line repairs, and tight-space connections where a compact sweat fitting is required. The C x C configuration means both ends accept standard copper tubing for a soldered joint on each side. It is sold individually, with a minimum order quantity of 5 units.

Key Features

• Wrot copper construction for consistent wall thickness and reliable solderability
• C x C end connections accept standard copper tubing on both sides
• Solder joint style for a permanent, pressure-rated connection
• 3/16 inch outside diameter fits small-bore copper line applications
• Compact form factor suited for tight spaces and precision tubing runs

Compatibility

Designed as an OEM-style replacement and standard-stock fitting for small-diameter wrot copper sweat-solder applications in residential and commercial copper piping systems.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician in accordance with applicable plumbing codes such as the IPC or local equivalents. Shut off and depressurize the supply line and allow all tubing to dry completely before soldering, as moisture will prevent proper joint formation. Clean both the tube end and fitting cup with emery cloth and flux thoroughly before applying heat. Do not overheat the fitting, as excessive temperature can damage the copper or cause flux to burn off before solder flows.