Boshart BF-42R-0806 1/2" x 3/8" Reducing Flare Union Coupling

Boshart BF-42R-0806 1/2" x 3/8" Reducing Flare Union Coupling

The Boshart BF-42R-0806 is a 1/2" x 3/8" reducing flare union coupling designed for rough-in plumbing and heating installations where two different tubing sizes need to be joined with a reliable, reusable mechanical connection. Flare fittings of this type are suitable for gas, oil, air, and water lines and are compatible with aluminum, brass, copper, and steel tubing, making this coupling a versatile choice for plumbers and mechanical contractors working across multiple trades. Because the flare connection method relies on a mechanical seal rather than solvent or solder, this union coupling can be disassembled and reassembled many times without degrading the seal, which is a major advantage for service work, equipment swaps, and any application where future access to the line is likely. Supplied in bulk quantities for professional and distributor use, this coupling is manufactured in China and packaged 25 pieces to a case for efficient stocking on trucks and in supply houses.

Key Features

• Trade Size: 1/2" x 3/8" reducing configuration allows two different tubing sizes to be joined in a single fitting.
• Flare Connection: Mechanical flare-type union coupling suitable for gas, oil, air, and water applications.
• Tubing Compatibility: Works with aluminum, brass, copper, and steel tubing, covering a broad range of common rough-in materials.
• Reusable Seal: Can be disassembled and reassembled many times with no effect on the seal, ideal for serviceable connections.
• Union Design: Allows for easy connection and disconnection of tubing runs without cutting or re-fitting the line.
• Bulk Packaging: Supplied 25 pieces per package for contractors and distributors stocking rough-in inventory.

Technical Specifications

• Country of Origin: China
• Packaging: 25 ea
• Trade Size: 1/2" x 3/8"
• Connection Type: Flare Union

Typical Applications

• Residential and Commercial Gas Line Connections
• Oil and Fuel Line Tubing Joints
• Compressed Air Tubing Runs
• Water Supply Tubing Transitions
• Rough-In Plumbing and Heating Installations
• Service and Maintenance Work Requiring Repeated Disassembly

Why Boshart?

Boshart flare fittings are built to deliver a dependable mechanical seal that stands up to repeated disassembly and reassembly, giving plumbers and mechanical contractors a serviceable connection point that doesn't need to be cut and re-fit every time access is required. With compatibility across aluminum, brass, copper, and steel tubing and suitability for gas, oil, air, and water applications, this reducing union coupling is a practical addition to any rough-in inventory. Boshart supplies this coupling in bulk 25-piece packaging to keep supply houses and trucks stocked for high-volume trade use.