Ndl Industries W1051 Copper Reducing Coupling 1-1/8x5/8 Cxc

Product Description

The NDL INDUSTRIES W1051 is a copper reducing coupling designed to connect two copper tubing runs of different diameters in a single inline fitting. It transitions from a 1-1/8-inch connection to a 5/8-inch connection using a sweat-solder (C x C) joint on both ends. This fitting is a standard plumbing and HVAC component used wherever a pipe reduction is needed in a copper system. Installation is performed by licensed plumbers and HVAC technicians working on refrigerant lines, potable water systems, or hydronic piping.

This reducing coupling is suited for residential and light commercial applications where copper tubing sizes must be stepped down without the use of a separate reducer bushing or additional fittings. The C x C connection type requires standard soldering or brazing technique on both the larger and smaller ends. It ships in a box quantity of 25 units, making it practical for contractors stocking fittings for multiple jobs or service inventory.

Key Features

• Reduces 1-1/8-inch copper tubing to 5/8-inch copper tubing in a single fitting
• C x C (sweat) connection on both ends — compatible with standard soft or hard copper tubing
• Inline reducing coupling design eliminates need for additional adapter fittings
• Sold in a box of 25 units for contractor and shop stocking

Compatibility

Designed as an OEM-style replacement and standard-use reducing coupling for copper tubing systems requiring a transition from 1-1/8-inch to 5/8-inch diameter with sweat-solder (C x C) connections.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician following applicable local codes, including IPC and IFGC guidelines where relevant. Shut off and depressurize the system and allow all tubing to cool before soldering or brazing. Clean and flux both the cup ends and the tubing before applying heat. Do not overheat the fitting — excessive heat can damage the copper and result in a failed joint.

Technical Specifications

• Basic Fitting Type: Coupling
• Specific Fitting Type: Reducing Coupling
• Connection Type: C x C (Sweat)
• Connection Size: 1-1/8 inches x 5/8 inches
• Material: Copper
• Box Quantity: 25

Standard Information

• Brand: NDL INDUSTRIES
• Manufacturer Part Number: W1051