Mueller Streamline W 01011 Reducing Coupling Wrot Copper

Product Description

The MUELLER STREAMLINE W 01011 is a wrot copper reducing coupling used to connect two copper tubes of different diameters in a single inline joint. It transitions from a 1/4-inch nominal inlet to a 1/8-inch nominal outlet using a C-style (sweat) end configuration, making it a standard press-fit-to-solder fitting for copper tubing systems. Wrot copper construction provides reliable pressure ratings, corrosion resistance, and compatibility with lead-free solder per modern plumbing codes. This fitting is used by licensed plumbers and HVAC technicians working on refrigerant lines, water supply piping, and other small-diameter copper tubing installations.

This reducing coupling is suited for residential and light commercial applications where a step-down connection between 1/4-inch and 1/8-inch copper tubing is required. Typical install scenarios include HVAC refrigerant line repairs, medical gas systems, instrument tubing, and small-diameter domestic water supply connections. The sweat-style ends require standard copper tube preparation and silver or lead-free solder, following the applicable plumbing or mechanical code for the jurisdiction.

Key Features

• Wrot copper construction for high-pressure durability and corrosion resistance
• C-style (sweat/solder) ends on both inlet and outlet
• Reduces from 1/4-inch nominal to 1/8-inch nominal in a single fitting
• Domestically produced, supporting compliance with Buy American provisions where applicable
• Compatible with lead-free solder for potable water applications per IPC and IFGC standards

Compatibility

Designed as an OEM-style replacement or new-installation fitting for copper tubing systems requiring a 1/4-inch to 1/8-inch nominal sweat reducing connection.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician. Shut off and depressurize the supply line completely before cutting into existing tubing. Clean and deburr all tube ends, apply flux evenly, and solder using a lead-free alloy in accordance with local IPC or IFGC requirements. Avoid overheating the fitting body, as excessive heat can damage the joint integrity of wrot copper fittings.