Elkhart Products MA-34X12 Male Reducing Copper Adapter

Product Description

The ELKHART PRODUCTS MA-34X12 is a wrot copper male reducing adapter designed to connect a 3/4-inch copper tube to a 1/2-inch male threaded fitting using a sweat (solder) joint. Manufactured from wrot copper for consistent grain structure and reliable solder flow, this adapter transitions from a larger copper line to a smaller male-threaded outlet. It is used in potable water supply, hydronic heating, and general plumbing distribution systems. Plumbers and pipefitters install this fitting when a run changes pipe size and requires a male-threaded termination. The C x M configuration accepts a standard copper tube on the cup end and threads directly into a female-threaded port on the outlet.

This adapter is suited for residential and light commercial plumbing applications where copper tubing systems require a reducing transition to a male-threaded connection. Typical installations include supply lines, fixture branch connections, and equipment connections where a 3/4-inch copper main feeds a 1/2-inch male-threaded port. The sweat-style cup end is compatible with standard copper tube and common lead-free solder alloys, making it appropriate for potable water service under applicable plumbing codes.

Key Features

• Wrot copper construction for dense grain structure and strong, leak-resistant solder joints
• 3/4-inch cup (C) inlet to 1/2-inch male (M) threaded outlet — reduces line size in a single fitting
• Sweat-type connection compatible with standard copper tube and lead-free solder
• Compact form factor: 1.23 inches x 1.57 inches x 1.06 inches overall envelope
• Lightweight at 0.106 pounds — minimal added load in confined spaces
• Suitable for potable water, hydronic, and general plumbing distribution service

Compatibility

Designed as an OEM-style replacement or new-installation fitting for copper plumbing systems requiring a 3/4-inch sweat cup inlet to 1/2-inch male-threaded outlet transition.

Installation Notes

Installation should be performed by a licensed plumber in accordance with the applicable International Plumbing Code (IPC) or local authority having jurisdiction. Shut off and depressurize the water supply line and drain residual water from the pipe before cutting and fitting. Clean and flux all mating surfaces before soldering, and use a lead-free solder alloy where required for potable water service. Allow the joint to cool fully before restoring system pressure and inspecting for leaks.

Technical Specifications

• Model: 104R
• Material: Copper (Wrot)
• Connection Type: C x M (Sweat Cup x Male Thread)
• Inlet Size: 3/4 inches
• Outlet Size: 1/2 inches
• Join Method: Solder
• Dimensions (L x W x H): 1.23 inches x 1.57 inches x 1.06 inches
• Weight: 0.106 pounds
• UPC: 683264303386

Standard Information

• Brand: ELKHART PRODUCTS
• Manufacturer Part Number: MA-34X12