

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The MUELLER STREAMLINE W 01038 is a wrot copper reducing coupling designed to connect pipes of two different diameters in a single inline fitting. It transitions from a 3/4-inch nominal inlet to a 1/4-inch nominal outlet using a C (sweat) end style, making it a standard solder-joint fitting for copper tubing systems. Wrot copper construction delivers consistent wall thickness, high pressure tolerance, and clean mating surfaces for reliable brazed or soldered joints. Licensed plumbers and HVAC technicians install this fitting in refrigeration lines, potable water supply systems, and hydronic piping where a reduction in line size is required.
This reducing coupling is suited for residential and light commercial plumbing and HVAC applications where copper tubing is the specified pipe material. The sweat-end configuration requires standard soldering or brazing procedure, making it compatible with common installation practices governed by the International Plumbing Code and applicable local mechanical codes. It is a domestically produced fitting intended for use wherever a wrot copper, solder-joint reducing coupling meets the project specification.
Designed as an OEM-style replacement or new-installation fitting for copper tubing systems requiring a 3/4 inch to 1/4 inch nominal sweat-end reducing coupling.
Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with local plumbing and mechanical codes. Shut off and depressurize the water or refrigerant line before cutting and fitting. Clean all mating surfaces with emery cloth and apply appropriate flux before soldering or brazing. Do not apply heat to a fitting that is still under pressure or contains residual fluid.
Thanks for subscribing!
This email has been registered!