Ndl Industries W1138 Copper Male Adapter 3/4in C X Mpt

Product Description

The NDL INDUSTRIES W1138 is a 3/4-inch by 3/4-inch copper male adapter designed to transition a sweat (copper) connection to a male pipe thread (MPT) fitting. This C x MPT adapter is a standard plumbing component used to terminate a copper run into a threaded port on valves, fixtures, or equipment. The fitting is machined for a clean solder joint on the copper end and delivers reliable thread engagement on the MPT side. Licensed plumbers install this fitting during new construction, remodel, and service work wherever a copper line must connect to a threaded fitting or component.

This adapter is suited for residential and light commercial plumbing systems. Typical applications include connecting copper supply lines to threaded shutoff valves, boiler connections, water heater fittings, and other threaded ports. The 3/4-inch size is common on main supply lines and larger branch lines. The fitting is sold in a box quantity of 25, making it practical for contractors stocking service vehicles or completing multi-fixture projects.

Key Features

• C x MPT configuration transitions a sweat copper end to a male pipe thread outlet
• 3/4-inch by 3/4-inch connection size suits main supply and larger branch line applications
• Copper construction provides corrosion resistance and compatibility with standard solder and flux
• Available in a 25-piece box quantity for contractor-level stocking
• Standard MPT thread allows direct engagement with female-threaded valves, equipment ports, and fittings

Compatibility

Designed as an OEM-style replacement and standard-use fitting for residential and light commercial copper plumbing systems requiring a 3/4-inch sweat-to-male-thread transition.

Installation Notes

Installation is performed by a licensed plumber following local plumbing codes and IPC guidelines. Shut off the water supply and depressurize the line before soldering. Clean and flux the copper pipe end thoroughly before applying heat to ensure a leak-free joint. Apply thread sealant tape or compound to the MPT threads before engaging the threaded port to prevent leaks.

Technical Specifications

• Basic Fitting Type: Adapter
• Specific Fitting Type: MPT Adapter
• Fitting Connection Type: C x MPT
• Connection Size: 3/4 inches x 3/4 inches
• Box Quantity: 25

Standard Information

• Brand: NDL INDUSTRIES
• Manufacturer Part Number: W1138