Midwest Fasteners Solid Brass Tube-to-Tube Compression Union Fitting

Midwest Fasteners Solid Brass Tube-to-Tube Compression Union Fitting

The Midwest Fasteners Solid Brass Tube-to-Tube Compression Union Fitting joins two sections of tubing without soldering, torches, or special tools. This compression union family is built from solid brass and spans matched OD-to-OD sizes from 1/4" OD x 1/4" OD through 7/8" OD x 7/8" OD, including 1/2" OD x 1/2", 1/2" OD x 3/8", 3/8" OD x 3/8", 5/8" OD x 5/8", and 5/8" OD x 1/2" reducing configurations. Every size shares the same solid brass construction and compression connection design, delivering a leak-tight mechanical joint tightened with nothing more than a wrench, making it a dependable choice for maintenance techs and plumbers handling tubing repairs, retrofits, or new runs.

Key Features

• Size Range: Available from 1/4" OD x 1/4" OD up to 7/8" OD x 7/8" OD, with reducing sizes such as 1/2" OD x 3/8" OD and 5/8" OD x 1/2" OD to match tubing runs of different diameters.
• Material: Solid brass construction throughout the size range for durability and corrosion resistance in plumbing applications.
• Connection Type: Compression fitting design creates a secure, leak-resistant joint without soldering or sweating a connection.
• Product Type: Classified as a brass general fitting, suited to a range of tubing connection tasks.
• Union Design: Lets two tubing sections be joined or separated for service without cutting the line.

Technical Specifications

• Product Type: Brass General Fitting
• Connection Type: Compression
• Product Material: Brass
• Size Range: 1/4" OD x 1/4" OD through 7/8" OD x 7/8" OD, including 3/8" OD x 3/8", 1/2" OD x 1/2", 1/2" OD x 3/8", 5/8" OD x 5/8", and 5/8" OD x 1/2" configurations.

Typical Applications

• Joining or extending copper or metal tubing runs in water supply lines.
• Plumbing repair and maintenance work where a solderless connection is preferred.
• Replacing a damaged compression union on an existing tubing run.
• General brass fitting applications requiring a reliable mechanical union.
• Reducing connections between two different tubing diameters using the 1/2" OD x 3/8" OD or 5/8" OD x 1/2" OD sizes.

Why Midwest Fasteners?

Midwest Fasteners supplies solid brass fittings built to consistent sizing and material standards across the full size range, so plumbers and maintenance crews can count on a proper fit every time they reach for this union. The compression union lineup's brass construction and matched OD compression connections make it a straightforward, dependable choice for professional tubing repair and installation work across the available size range.