Mueller Industries W 01019 Copper Reducer 3/8 X 1/4 in

Product Description

The MUELLER INDUSTRIES W 01019 is a wrot copper reducing fitting designed to connect copper tubing of two different diameters using a solder joint end connection. It reduces from 3/8 inch to 1/4 inch (C x C) and is manufactured from wrot copper, which offers superior strength and pressure integrity compared to cast fittings. Weighing approximately 0.017 pounds, this compact reducer is a standard component in refrigeration, plumbing, and HVAC piping systems where line-size changes are required. Licensed plumbers and HVAC technicians install this fitting as part of copper pipe assemblies requiring a clean, leak-free brazed or soldered connection.

This reducer is suited for residential and light commercial plumbing and HVAC applications wherever a copper pipe run transitions from 3/8 inch to 1/4 inch tubing. Common installation scenarios include refrigerant line modifications, domestic water distribution piping, and hydronic system branch connections. The C x C (copper-to-copper) solder joint configuration makes it compatible with standard sweat-soldering or brazing methods used throughout the trade. Outside diameter dimensions are 1/2 inch on the larger end and 3/8 inch on the smaller end.

Key Features

• Wrot copper construction provides higher strength and pressure resistance than cast copper fittings
• C x C solder joint ends accept standard sweat-soldering and brazing techniques
• 3/8 inch to 1/4 inch reducing configuration for line-size transitions in copper piping systems
• Meets multiple ASME standards including B16.22 and B16.18 for copper and copper-alloy fittings
• Compact and lightweight at approximately 0.017 pounds

Compatibility

Designed as an OEM-style replacement and standard-use reducer fitting for copper piping systems using 3/8 inch and 1/4 inch C x C solder joint connections in plumbing and HVAC applications.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician following applicable local codes and IFGC or IPC guidelines where relevant. Shut off water or refrigerant supply and depressurize the line before cutting and fitting. Clean and flux all mating surfaces thoroughly before applying heat. Avoid overheating the fitting during soldering or brazing, as excessive heat can damage the copper and compromise joint integrity.