Ndl Industries W1036 Copper Reducing Coupling 7/8x5/8 Cxc

Product Description

The NDL INDUSTRIES W1036 is a copper reducing coupling designed to connect two copper tubes of different diameters in a sweat-soldered (C x C) configuration. It transitions from a 7/8-inch connection to a 5/8-inch connection, making it a standard component for reducing line size within refrigeration, HVAC, and plumbing systems. The all-copper construction ensures reliable soldered joints and long-term corrosion resistance. This fitting is installed by licensed HVAC technicians and plumbers during new construction, system modification, or repair work where a line-size reduction is required.

This reducing coupling is suited for residential and light commercial applications where copper tubing must be stepped down in diameter. Typical use cases include refrigerant line modifications, hydronic piping systems, and domestic water supply rough-in work. The C x C end configuration requires standard sweat soldering technique on both ends, making it compatible with the copper tubing and fitting methods used across HVAC and plumbing trades.

Key Features

• Reduces from 7/8-inch to 5/8-inch copper tube diameter in a single fitting
• C x C (sweat) connection on both ends for soldered installation
• All-copper construction for corrosion resistance and solder compatibility
• Compact reducing coupling profile for tight-space installations
• Available in a box quantity of 50 units for service truck or job-site stocking

Compatibility

Designed as an OEM-style replacement and standard trade fitting for copper tube systems requiring a reduction from 7/8-inch to 5/8-inch diameter with sweat-soldered connections.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician following applicable local plumbing codes and IFGC or IPC requirements where relevant. Shut off and depressurize the system completely before cutting into any existing line. Clean and deburr both tube ends, apply flux, and solder all joints per standard sweat-soldering practice. Do not apply heat to the fitting while the system is pressurized or charged with refrigerant.

Technical Specifications

• Basic Fitting Type: Coupling
• Specific Fitting Type: Reducing Coupling
• Connection Type: C x C (Sweat)
• Connection Size: 7/8 inches x 5/8 inches
• Box Quantity: 50

Standard Information

• Brand: NDL INDUSTRIES
• Manufacturer Part Number: W1036