Midland Industries 17079N Reducing Union Compression Nylon

Product Description

The MIDLAND INDUSTRIES 17079N is a reducing union fitting designed to join two compression lines of different sizes in a single inline connection. It accepts a 3/8-inch compression fitting on one end and a 1/4-inch compression fitting on the other, making it a practical solution when a system transitions between tube sizes. Constructed from nylon, this fitting is lightweight, corrosion-resistant, and suited for low-pressure fluid or gas distribution applications. The white finish aids in quick visual identification during install. Plumbers, HVAC technicians, and refrigeration mechanics working with plastic compression tubing systems will encounter this fitting in both residential and light commercial settings.

This reducing union is used in plastic compression tubing systems where a line size reduction is required inline without the use of separate adapters or unions. It is commonly installed in water supply lines, ice maker feed lines, RO (reverse osmosis) system plumbing, and similar low-pressure tubing applications. The 9/16-24 thread specification is relevant to the union body construction. It fits into runs where a 3/8-inch tube must transition to 1/4-inch tube in a straight inline configuration, keeping the system compact and leak-resistant when properly seated.

Key Features

• Reduces from 3/8-inch compression to 1/4-inch compression in a single fitting
• Nylon construction offers corrosion resistance and compatibility with common potable and process fluids
• 9/16-24 thread specification on the union body
• Lightweight at 0.015 pounds, minimizing load on tubing runs
• Compact profile: approximately 2.1 inches in length and 0.95 inches in height

Compatibility

Designed as an OEM-style replacement or installation fitting for plastic compression tubing systems requiring an inline reduction from 3/8-inch to 1/4-inch tube diameter.

Installation Notes

This fitting is installed by a plumber or HVAC technician working with plastic compression tubing. Shut off the water supply or system pressure before disassembling existing lines. Ensure tube ends are cut clean and square before inserting into the compression seats. Do not overtighten compression nuts, as nylon fittings can crack under excessive torque; hand-tighten plus a partial wrench turn is the standard practice for compression fittings of this type.