Midland Industries 77296 Copper Reducer Coupling 3/4x5/8 in

Product Description

The MIDLAND INDUSTRIES 77296 is a copper reducer coupling designed to connect two different-diameter copper tubes in a sweat-soldered plumbing or HVAC system. One end accepts a 3/4-inch fitting connection and the other accepts a 5/8-inch sweat (C) connection, making it a standard solution for step-down transitions in copper piping runs. Rated to 500 psi and suitable for temperatures ranging from 32 degrees F to 200 degrees F, this fitting meets the working demands of residential and light commercial plumbing, hydronic heating, and refrigeration piping applications. Licensed plumbers and HVAC technicians are the typical installers.

This reducer coupling is used wherever a piping run must transition from 3/4-inch to 5/8-inch copper tubing. Common applications include domestic water distribution, radiant heating supply and return lines, and refrigerant piping stub-outs where line sizes change between equipment and distribution branches. It is a direct-fit copper sweat component suitable for both new construction and retrofit work. The compact profile, measuring 1.65 inches in height and 0.8 inches in width, allows installation in tight spaces such as wall cavities, mechanical closets, and equipment cabinets.

Key Features

• 3/4-inch fitting connection on one end, 5/8-inch sweat (C) connection on the other for a clean step-down transition
• Rated to 500 psi working pressure for reliable performance in pressurized systems
• Temperature range of 32 degrees F to 200 degrees F covers standard plumbing and hydronic applications
• Copper construction provides corrosion resistance and compatibility with standard lead-free solder
• Compact dimensions of 1.65 x 0.8 x 0.8 inches fit in confined installation spaces

Compatibility

Designed as an OEM-style copper sweat reducer coupling for use in residential and light commercial plumbing, HVAC, and hydronic piping systems that require a 3/4-inch to 5/8-inch diameter transition.

Installation Notes

Installation is performed by a licensed plumber or HVAC technician using standard copper sweat-soldering tools including a torch, lead-free solder, and flux. Shut off and depressurize the water or refrigerant system and allow all lines to cool completely before cutting into existing piping. Clean and deburr both tube ends before applying flux and soldering to ensure a leak-free joint. Work must comply with applicable local plumbing codes and, where refrigerant piping is involved, EPA Section 608 handling requirements.